TRANSPORTATION IMPACT STUDY HYATT PLACE HOTEL EXPANSION AND OLD DAVIS ROAD EXTENSION

Transcription

1 TRANSPORTATION IMPACT STUDY HYATT PLACE HOTEL EXPANSION AND OLD DAVIS ROAD EXTENSION Prpard for: Submittd by: 2990 Lava Ridg Ct. Suit 200 Rosvill, CA

2 TABLE OF CONTENTS 1. Introduction... 1 Projct Location and Dscription... 1 Analysis Scnarios... 1 Study Filitis... 1 Data Collction... 2 Trfic Forcasts... 2 Roadway Ntwork Assumptions... 3 Mthodology... 3 Significanc Critria and Impts... 5 Rport Organization Existing Conditions... 7 Intrsctions... 7 Roadway Sgmnts Bicycl and Pdstrian Filitis Existing Plus Projct Conditions Existing Plus Hyatt Pl Expansion Existing Plus Old Davis Road Extnsion Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion Intrsctions Roadway Sgmnts Bicycl and Pdstrian Filitis Impt Summary Cumulativ Conditions Cumulativ No Projct Cumulativ Plus Davis Hotl Cumulativ Plus Hyatt Pl Expansion Cumulativ Plus Old Davis Road Extnsion Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion Intrsctions Roadway Sgmnts Bicycl and Pdstrian Filitis Frway Divrsion Assssmnt Impt Summary and Mitigation Masur APPENDICES Appndix A: Trfic Counts Appndix B: Tchnical Calculations

3 LIST OF FIGURES Figur 1: Pak Hour Trfic Volums and Lan Configurations Existing Conditions... 9 Figur 2: Hyatt Pl Expansion Trip Distribution Without Old Davis Road Extnsion Figur 3: Pak Hour Trfic Volums and Lan Configurations Existing Plus Hyatt Pl Expansion.. 16 Figur 4: Pak Hour Trfic Volums and Lan Configurations Existing Plus Old Davis Road Extnsion Figur 5: Hyatt Pl Expansion Trip Distribution With Old Davis Road Extnsion Figur 6: Pak Hour Trfic Volums and Lan Configurations Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion Figur 7: Pak Hour Trfic Volums and Lan Configurations Cumulativ No Projct Figur 8: City of Davis Hotl Trip Distribution Figur 9: Pak Hour Trfic Volums and Lan Configurations Cumulativ Plus Davis Hotl Figur 10: Pak Hour Trfic Volums and Lan Configurations Cumulativ Plus Hyatt Pl Expansion Figur 11: Pak Hour Trfic Volums and Lan Configurations Cumulativ Plus Old Davis Road Extnsion Figur 12: Pak Hour Trfic Volums and Lan Configurations Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion... 32

4 LIST OF TABLES Tabl 1: Intrsction Count Dats... 2 Tabl 2: Lvl of Srvic Dfinitions Signalizd Intrsctions... 3 Tabl 3: Lvl of Srvic Dfinitions Unsignalizd Intrsctions... 4 Tabl 4: Lvl of Srvic Dfinitions Roundabouts... 5 Tabl 5: Intrsction Dlay / Lvl of Srvic Existing Conditions... 7 Tabl 6: Roadway Trfic Volums Existing Conditions Tabl 7: Travl Tim Analysis Tabl 8: Hyatt Pl Expansion Trip Gnration Tabl 9: Intrsction Dlay / Lvl of Srvic Existing Plus Projct Conditions Tabl 10: Roadway Trfic Volums Existing Plus Projct Conditions Tabl 11: City of Davis Hotl Trip Gnration Tabl 12: Intrsction Dlay / Lvl of Srvic Cumulativ Conditions Tabl 13: Roadway Trfic Volums Cumulativ Conditions... 36

5 1. INTRODUCTION Th purpos of this study is to analyz th impts of th Hyatt Pl hotl xpansion and Old Davis Road xtnsion projct. This study valuats th transportation impts of th projct and idntifis th improvmnts ndd to mitigat dficincis causd by th projct. To count for all rasonably forsabl projcts, crtain cumulativ analysis scnarios count for th rplmnt of th Univrsity Park Inn & Suits in th City of Davis (rfrrd to in this study as th City of Davis hotl ). This purpos of this study is not to assss potntial impts of th City of Davis hotl. PROJECT LOCATION AND DESCRIPTION Th proposd Hyatt Pl xpansion and Old Davis Road xtnsion ar locatd on th Univrsity of California, Davis (UC Davis) campus. Th xisting Hyatt Pl hotl has 75 rooms and is locatd on Old Davis Road ast of Alumni Lan; th proposd xpansion would add an additional 52 rooms and would occur on th sam sit. Th proposd Old Davis Road xtnsion would connct Old Davis Road at its xisting trminus ast of Alumni Lan to its ultimat alignmnt through Parking Lot Fiv. Th xtnsion of Old Davis Road will clos Arbortum Driv to vhicl trfic; thrby turning it into a fility xclusivly for us by bicyclists and pdstrians. Srvic vhicls and mrgncy vhicls will also b allowd to us th fility. ANALYSIS SCENARIOS This study analyzs th following scnarios: Existing Conditions Existing Plus Hyatt Pl Expansion Existing Plus Old Davis Road Extnsion Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion Cumulativ No Projct Conditions Cumulativ Plus City of Davis Hotl Cumulativ Plus Hyatt Pl Expansion Cumulativ Plus Old Davis Road Extnsion Cumulativ Plus City of Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion STUDY FACILITIES This study analyzs th following intrsctions: 1. Old Davis Road / I-80 Eastbound Ramps 2. Old Davis Road / I-80 Wstbound Ramps 1

6 3. Old Davis Road / California Avnu 4. Old Davis Road / Hilgard Lan 5. Old Davis Road / Mrak Hall Driv 6. 1 st Strt / A Strt 7. 1 st Strt / B Strt 8. 1 st Strt / E Strt / Richards Boulvard 9. Oliv Driv / Richards Boulvard This study also analyzs th roadway sgmnt of Old Davis Road btwn th Old Davis Road / I-80 Wstbound Ramps intrsction and th Old Davis Road / California Avnu intrsction. DATA COLLECTION Tabl 1 shows th dats on which vhicl, bicycl, and pdstrian counts wr collctd at study intrsctions. Counts wr collctd on diffrnt dats bcaus som wr rcntly availabl from othr studis. Additionally, nw counts wr ndd for additional study intrsctions basd on commnts rcivd on th drt study. TABLE 1: INTERSECTION COUNT DATES Intrsction Count Dat Old Davis Road / I-80 Eastbound January 11, 2011 Old Davis Road / I-80 Wstbound January 11, 2011 Old Davis Road / California Avnu Fbruary 25, 2010 Old Davis Road / Hilgard Lan Fbruary 25, 2010 Old Davis Road / Mrak Hall Driv January 11, st Strt / A Strt January 11, st Strt / B Strt April 26, st Strt / Richards Boulvard April 26, 2011 Oliv Driv / Richards Boulvard April 26, 2011 Sourc: Fhr & Prs, 2011 Counts wr takn from 7:00 to 9:00 and from 4:00 to 6:00. Th counts show that th and vhicl pak hours occur from 8:00 to 9:00 and 4:30 to 5:30, rspctivly. TRAFFIC FORECASTS Cumulativ yar turning movmnt forcasts wr dvlopd for th study intrsctions and roadway sgmnts using an updatd vrsion of th Davis Travl Dmand Modl. Th assumd cumulativ land uss for UC Davis wr consistnt with thos assumd for th UC Davis 2003 Long Rang Dvlopmnt Plan Final Environmntal Impt Rport (2003 LRDP EIR). Th horizon yar for th 2003 LRDP EIR is th 2015/16 admic yar; howvr, it is unlikly that full buildout of th 2003 LRDP EIR land uss will 2

7 occur by th 2015/16 admic yar. Th modl includd th most rcnt land us assumptions for th City of Davis basd on th City of Davis Gnral Plan. Th diffrnc mthod, which adds th diffrnc btwn th bas and futur yar modl runs to xisting counts, was usd to dvlop th cumulativ turning movmnt forcasts. ROADWAY NETWORK ASSUMPTIONS With th xcption of th Old Davis Road / California Avnu intrsction, all analysis scnarios assum that th xisting lan configurations and trfic controls rmain unchangd. Th Univrsity is currntly finalizing plans to install a roundabout at th Old Davis Road / California Avnu intrsction. Bcaus this projct is fully fundd, this study s cumulativ analysis scnarios assum that th roundabout will b in pl. METHODOLOGY Fhr & Prs analyzd study intrsctions using th mthodology prsntd in th 2000 Highway Capity Manual (Transportation Rsarch Board, 2000) and roundabouts using th mthodology prsntd in th 2010 Highway Capity Manual (Transportation Rsarch Board, 2010). Th 2010 Highway Capity Manual includs minor updats to th 2000 Highway Capity Manual mthodologis for signalizd and unsignalizd intrsctions; howvr, ths updats do not fct th rsults of analysis for intrsctions in this study. Additionally, stat-of-th-prtic calculation ngins hav not yt bn dvlopd for th 2010 Highway Capity Manual mthodology. Thrfor, at signalizd and unsignalizd intrsctions, Fhr & Prs usd th 2000 Highway Capity Manual mthodology. Signalizd Intrsction Analysis Th HCM 2000 mthodology dtrmins th Lvl of Srvic (LOS) at signalizd intrsctions by comparing th avrag control dlay (i.. dlay rsulting from initial dclration, quu mov-up tim, tim tually stoppd, and final clration) pr vhicl at th intrsction to th thrsholds shown in Tabl 2. TABLE 2: LEVEL OF SERVICE DEFINITIONS SIGNALIZED INTERSECTIONS Lvl of Srvic Control Dlay (sconds pr vhicl) A 10.0 B C D E F >80.0 Sourc: 2000 Highway Capity Manual (Transportation Rsarch Board, 2000) 3

8 Unsignalizd Intrsction Analysis Th HCM 2000 mthodology for unsignalizd intrsctions rports th LOS using th control dlay thrsholds shown in Tabl 3. TABLE 3: LEVEL OF SERVICE DEFINITIONS UNSIGNALIZED INTERSECTIONS Lvl of Srvic Control Dlay (sconds pr vhicl) A 10.0 B C D E F >50.0 Sourc: 2000 Highway Capity Manual (Transportation Rsarch Board, 2000) As dscribd in th HCM 2000, avrag control dlay for th ntir intrsction dfins th LOS for allway stop controlld intrsctions. Convrsly, for sid-strt stop-controlld intrsctions, th LOS is valuatd sparatly for h individual movmnt. Howvr, for sid-strt stop-controlld intrsctions, prvious UC Davis trfic studis basd th LOS at on-campus intrsctions on th avrag control dlay for th intrsction as a whol. To b consistnt with both th HCM and rcnt UC Davis studis, this rport documnts th LOS for sid-strt stop-controlld intrsctions in two forms: Intrsction LOS, basd on th wightd avrag of th control dlay xprincd by h movmnt of th intrsction Worst-Cas LOS, basd on th control dlay xprincd by th worst movmnt of th intrsction 4

9 Roundabout Analysis Th HCM 2010 mthodology dtrmins th Lvl of Srvic (LOS) at roundabouts by comparing th avrag control dlay pr vhicl and volum-to-capity ratio to th thrsholds shown in Tabl 4. TABLE 4: LEVEL OF SERVICE DEFINITIONS ROUNDABOUTS Control Dlay (sconds pr vhicl) LOS by Volum-to-Capity Ratio v/c 1.0 v/c > A F B F C F D F E F >50.0 F F Sourc: 2010 Highway Capity Manual (Transportation Rsarch Board, 2010) Roadway Sgmnt Analysis Roadway sgmnt volums wr analyzd to dtrmin if ithr of th proposd projcts would caus volum to incras. SIGNIFICANCE CRITERIA AND IMPACTS Th following significanc critria wr usd to idntify oprational dficincis basd on th intrsction LOS analysis: Pr th 2003 LRDP EIR, LOS D is th minimum cptabl LOS for UC Davis Pr th City of Davis Gnral Plan, LOS E is th minimum cptabl LOS for th City of Davis, LOS F is cptabl for th City for th Davis Cor Ara (LOS F is cptabl and considrd a congstd condition for Cor Ara intrsctions); all City of Davis intrsctions analyzd in this study ar Cor Ara intrsctions For th purpos of this analysis, potntially significant trfic impts at intrsctions ar dfind whn th addition of projct trfic causs any of th following: On th UC Davis campus: o o o For signalizd intrsctions, caus pak hour intrsction oprations to dtriorat from an cptabl lvl (LOS D) to an uncptabl lvl (LOS E or wors) For unsignalizd intrsctions, caus th avrag of all movmnts to dtriorat from an cptabl lvl (LOS D) to an uncptabl lvl and mt th California Manual on Uniform Trfic Control Dvics (MUTCD) pak hour signal warrant For signalizd and unsignalizd intrsctions that oprat uncptably without th projct, add 10 or mor vhicls to th intrsction s volum. 5

10 In th City of Davis: o o o o For signalizd intrsctions, xrbat uncptabl (LOS F in th wkday or pak hour; LOS E or F in th Saturday pak hour) oprations by incrasing an intrsction s avrag dlay by fiv sconds or mor For Cor Ara intrsctions that oprat at congstd conditions (LOS F in th wkday or pak hour or th Saturday pak hour), xrbat oprations by incrasing an intrsction s avrag dlay by fiv sconds or mor For unsignalizd intrsctions that oprat uncptably (LOS F in th wkday or pak hour; LOS E or F in th Saturday pak hour; and mt MUTCD s pak hour signal warrant without th projct), xrbat oprations by incrasing th ovrall intrsction s volum by mor than on prcnt For unsignalizd intrsctions that oprat uncptably but do not mt MUTCD s pak hour signal warrant without th projct, add sufficint volum to mt th pak hour signal warrant Ths significanc critria for City of Davis intrsctions ar consistnt with thos applid in th Scond Strt Crossing (Targt Stor) Projct Drt Environmntal Impt Rport (SCH# ) and th Covll Villag Projct Drt Program Lvl EIR (SCH# ). REPORT ORGANIZATION Th rmaindr of this rport contains th following chaptrs: Chaptr 2 Existing Conditions Chaptr 3 Existing Plus Projct Conditions Chaptr 4 Cumulativ Conditions 6

11 2. EXISTING CONDITIONS This sction dscribs th xisting conditions of th roadway, bicycl, and pdstrian filitis in th study ara. INTERSECTIONS Figur 1 shows th xisting vhicular pak hour trfic volums and lan configurations. Most of th intrsctions ar stop-controlld, xcpt for th Old Davis Road / Mrak Hall Driv, 1 st Strt / Richards Boulvard, and Oliv Driv / Richards Boulvard intrsctions which ar signalizd. Tabl 5 shows th xisting dlay and lvl of srvic at th study intrsctions. TABLE 5: INTERSECTION DELAY / LEVEL OF SERVICE EXISTING CONDITIONS Existing Dlay / LOS 1 Intrsction Control Pak Hour Old Davis Road / I-80 Eastbound Old Davis Road / I-80 Wstbound Old Davis Road / California Avnu Old Davis Road / Hilgard Lan Old Davis Road / Mrak Hall Driv 1 st Strt / A Strt UC Davis Campus Intrsctions Sid Strt Stop- Controlld Sid Strt Stop- Controlld Sid Strt Stop- Controlld Sid Strt Stop- Controlld Signalizd City of Davis Intrsctions Sid Strt Stop- Controlld 1 st Strt / B Strt All Way Stop 1 st Strt / Richards Boulvard 2 Signalizd Oliv Driv / Richards Boulvard 2 Signalizd Avrag 10 / B 9 / A 10 / B 2 / A 8 / A 10 / A 1 / A 11 / B 22 / C 32 / C 14 / B 13 / B 14 / B 16 / C 24 / C 27 / C 24 / C 15 / B Worst- Dlayd Movmnt 15 / B 29 / D 21 / C 13 / B 38 / E 26 / D 17 / C 37 / E 77 / F 18 / C Nots: 1 Intrsction dlay is rportd in sconds pr vhicl, and is basd on th avrag of all approhs for all-way stop controlld intrsctions and signalizd intrsctions pr HCM mthodology. For sid-strt stop controlld intrsctions, th dlay and LOS is rportd for both th avrag of all approhs and th worst-dlayd movmnt. 2 Uniqu conditions of Richards Boulvard discussd in txt of this rport. Bold txt indicats a congstd condition (LOS F) at City of Davis Cor Ara intrsctions. Sourc: Fhr & Prs,

12 As shown in Tabl 5, th following intrsctions hav sid strt movmnts that oprat at LOS E or LOS F: Old Davis Road / California Avnu pak hour, worst-cas movmnt is LOS E Old Davis Road / Hilgard Lan pak hour, worst-cas movmnt is LOS E 1st Strt / A Strt pak hour, worst-cas movmnt is LOS F Although th 1 st Strt / Richards Boulvard and Oliv Driv / Richards Boulvard intrsctions ar rportd to oprat at an cptabl LOS with th pak hour trfic volums usd in this analysis, fild obsrvations indicat that ths intrsctions oftn oprat uncptably during th pak hours. Th HCM 2000 mthodology usd to analyz ths intrsctions dos not considr th ffcts of quuing that xtnds into adjnt intrsctions. This situation frquntly occurs during th pak hours along Richards Boulvard. Thrfor, th rportd LOS at ths intrsctions may not curatly xplain th conditions on th ground. Th City of Davis has adoptd a standard for ths intrsctions of LOS F and has statd that th Richards Boulvard tunnl will not b widnd in th futur. 8

13 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av. Arbo rtum Dr.! 6 E St. B St.! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 66 (27) 39 (308) 356 (71) 2 (2) 64 (15) c c a 44 (78) 15 (35) I-80 EB On-Ramp 33 (299) 68 (327) ccf b 20 (62) 380 (87) 462 (102) 3 (1) 37 (8) I-80 WB Off-Ramp 60 (247) 82 (129) 244 (116) 455 (105) c California Av. 98 (125) 48 (395) 283 (207) 254 (27) Hilgard Ln. 17 (228) 9 (54) 129 (292) 65 (13) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 217 (227) 75 (34) 185 (249) 39 (14) g Mrak Hall Rd. 2 (18) 9 (56) 3 (2) 1 (3) 2 (1) a d 1 (0) 53 (63) 98 (345) 61 (68) 15 (1) 393 (195) 296 (109) 201 (315) 50 (171) 90 (226) cf 250 (247) 284 (165) 2 (23) 10 (42) 296 (545) (22) 75 (160) 7 3 (2) 547 (420) 84 (134) 196 (284) (10) 21 (29) a1 117 (211) 9. Oliv Dr./Richards Blvd. Oliv Dr. 12 (19) 3 (1) 23 (43) (23) 442 (834) a22 24 (59) d (165) 12 (10) a (100) f 26 (22) 664 (654) 30 (46) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign N NOT TO SCALE Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig01_phtv_x_con.mxd PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - EXISTING CONDITIONS FIGURE 1

14 ROADWAY SEGMENTS Trfic Volums Tabl 6 shows th xisting pak hour and daily vhicular trfic volums on Old Davis Road btwn I-80 and California Avnu. TABLE 6: ROADWAY TRAFFIC VOLUMES EXISTING CONDITIONS Pak Hour Location Volum Old Davis Road b/t I-80 and California Avnu 943 Pak Hour Old Davis Road b/t I-80 and California Avnu 815 Daily Old Davis Road b/t I-80 and California Avnu 7,330 Sourc: Fhr & Prs, 2011 As shown in Tabl 6, th and pak hour roadway trfic volums count for 13% and 11% of th daily trfic volum, rspctivly. Travl Tims pak priod trfic congstion on astbound I-80 rgularly causs dlays for motorists travling on th frway through Davis. This is spcially tru for astbound trfic on Friday vnings, whn rcrational trfic travling to dstinations in th Sirra Nvada is most prvalnt. To addrss cutthrough trfic concrns through th Univrsity and downtown Davis bcaus of I-80 trfic, Fhr & Prs conductd a travl tim analysis, using a floating car tchniqu, to compar th travl tims on I-80 astbound to th fastst rout through downtown Davis. Th wstbound dirction was not of concrn bcaus I-80 wstbound trfic during th pak priod is typically uncongstd. Spcifically, th travl tim analysis compars th following astbound routs: I-80 astbound btwn Old Davis Road and M Boulvard Local strts: Old Davis Road, Mrak Hall Driv, Arbortum Driv, A Strt, 1 st Strt, B Strt, 3 rd Strt, L Strt, 2 nd Strt, M Boulvard Travl tim runs wr compltd on Friday, January 14, 2011 and Friday, January 21, Friday was chosn bcaus it rprsnts th worst-cas for pak priod trfic on I-80 astbound; Bay Ara trfic typically uss I-80 on Friday vnings to css Lak Taho. On Friday, January 14, 2011, an cidnt on Chils Road ast of M Boulvard causd significant congstion on I-80 astbound. Th I-80 travl tim runs from this day ar not usd in th analysis. Howvr, trfic on local strts rmaind at normal lvls; th local strt travl tim runs wr usd in th analysis. Vry fw vhicls wr obsrvd using th local strts to bypass I-80 through downtown Davis. Howvr, svral Davis rsidnts (who did not rntr th frway) wr obsrvd xiting I-80 at Old Davis Road; it is likly that svral of ths rsidnts would xit th frway furthr ast (at Richard Boulvard or M Boulvard) whn I-80 astbound is not congstd. 10

15 I-80 astbound travl tim runs wr rcollctd on Friday, January 21, No local strt travl tim runs wr collctd on this day. Tabl 7 shows th rsults of th travl tim analysis. TABLE 7: TRAVEL TIME ANALYSIS Rout Dat Start Tim hh:mm:ss End Tim hh:mm:ss Travl Tim hh:mm:ss Avrag hh:mm:ss Local Strts 1/14/ :44:41 17:58:36 00:13:55 Local Strts 1/14/ :15:29 18:34:45 00:19:16 Local Strts 1/14/ :53:51 19:11:33 00:17:42 I-80 Eastbound 1/21/ :56:37 17:09:14 0:12:37 I-80 Eastbound 1/21/ :16:06 17:27:28 0:11:22 I-80 Eastbound 1/21/ :34:35 17:46:33 0:11:58 00:16:58 00:11:59 Sourc: Fhr & Prs, 2011 Not: hh:mm:ss = tim of day or travl tim as rprsntd in hours:minuts sconds Tabl 7 shows that, vn whn I-80 astbound is congstd, it is fastr to tak I-80 btwn Old Davis Road and M Boulvard than to us local strts. BICYCLE AND PEDESTRIAN FACILITIES Class II bicycl lans xist on Old Davis Road btwn California Avnu and th trminus of Old Davis Road ast of Alumni Lan. A shard-us path intrscts A Strt south of 1 st Strt, continus on th south sid of 1 st Strt btwn B Strt and Richards Boulvard, thn crosss undr th Union Pific Railroad on th wst sid of Richards Boulvard. Anothr shard-us path is locatd on th ast sid of California Avnu. Th following roadways hav sidwalks: Old Davis Road btwn California Avnu and th trminus of Old Davis Road ast of Alumni Lan (both sids) Alumni Lan (both sids) Mrak Hall Driv (both sids) A Strt (both sids) Arbortum Driv (south sid only) 1 st Strt (north sid only; south sid has bik path) B Strt (both sids) 11

16 E Strt (both sids) Oliv Driv (both sids) Crosswalks ar locatd at most approhs to study intrsctions. 12

17 3. EXISTING PLUS PROJECT CONDITIONS Thr ar thr xisting plus projct scnarios: Existing Plus Hyatt Pl Expansion, Existing Plus Old Davis Road Extnsion, and Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion. EXISTING PLUS HYATT PLACE EXPANSION To dvlop th Existing Plus Hyatt Pl Expansion scnario, trips gnratd by th proposd Hyatt Pl xpansion wr addd to th xisting trfic counts. Hyatt Pl Expansion Trip Gnration Th proposd Hyatt Pl xpansion would add an additional 52 rooms and would occur on th sam sit as th xisting Hyatt Pl hotl. Fhr & Prs conductd trfic counts on Old Davis Road ast of Alumni Lan on Tusday, January 11, 2001 and Wdnsday, January 12, 2001 to dtrmin th trip gnration rat of th xisting Hyatt Pl hotl. Th rsults of ths counts showd that th xisting Hyatt Pl hotl gnrats trips at a rat similar to th avrag trip rats for hotls in Trip Gnration (Institut of Transportation Enginrs, 2008). Thrfor, this study assums th rat from Trip Gnration at 100% hotl occupancy; ths assumptions ar consistnt with th transportation and circulation analysis prformd for th Hyatt Pl hotl in Dcmbr Tabl 8 shows th pak hour and daily trip gnration of th Hyatt Pl xpansion. TABLE 8: HYATT PLACE EXPANSION TRIP GENERATION Land Us Quantity Daily Trip Rat 1 Pak Hour Pak Hour Daily Trips Pak Hour Pak Hour Hotl 52 rooms Nots: Basd on avrag trip rat from Trip Gnration (Institut of Transportation Enginrs, 2008). Sourc: Fhr & Prs, 2011 Hyatt Pl Expansion Trip Distribution without Old Davis Road Extnsion Figur 2 shows th trip distribution for Hyatt Pl xpansion trips without th Old Davis Road xtnsion. This trip distribution was dvlopd basd on th xisting trfic counts and knowldg of th study ara. Trips to and from th Hyatt Pl hotl originat from, and ar bound for, downtown Davis via 1 st Strt, south Davis via Richards Boulvard, th UC Davis campus via California Avnu, th Bay Ara via I-80 Wst, and Sramnto via I-80 East. To dvlop th Existing Plus Hyatt Pl Expansion scnario, trips gnratd by th proposd Hyatt Pl xpansion wr addd to th xisting counts cording to th trip distribution shown in Figur 2. Figur 3 shows th pak hour trfic volums and lan configurations for th Existing Plus Hyatt Pl Expansion scnario. EXISTING PLUS OLD DAVIS ROAD EXTENSION Analysis using th Davis Travl Dmand Modl showd that closing Arbortum Driv and adding th Old Davis Road xtnsion rsultd in th following: 13

18 Trips prviously using Arbortum Driv wr rroutd onto th Old Davis Road xtnsion Som South Entry Parking Structur trips to/from th I-80 / Old Davis Road intrchang rroutd to downtown Davis and roadway filitis south of th Oliv Driv / Richards Boulvard intrsction via 1 st Strt To dvlop trfic volums for th Existing Plus Old Davis Road Extnsion scnario, xisting trfic volums wr manually adjustd as follows: Trfic from Arbortum Driv was rroutd to th Old Davis Road xtnsion Som South Entry Parking Structur trfic to/from th I-80 / Old Davis Road intrchang was rroutd through downtown Davis and roadway filitis south of th Oliv Driv / Richards Boulvard intrsction. Intrsction turning movmnt counts from th 2003 Long Rang Dvlopmnt Plan Trfic Impt Study at th Arbortum Driv / Mrak Hall Driv intrsction wr usd to maintain appropriat lvls of trfic on Mrak Hall Driv. Figur 4 shows th pak hour trfic volums and lan configurations for th Existing Plus Old Davis Road Extnsion scnario. EXISTING PLUS HYATT PLACE EXPANSION AND OLD DAVIS ROAD EXTENSION To dvlop th Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion scnario trfic volums, th trips gnratd by th proposd Hyatt Pl xpansion wr addd to th Existing Plus Old Davis Road Extnsion scnario trfic volums. Figur 5 shows th trip distribution for Hyatt Pl xpansion trips with th Old Davis Road xtnsion. This trip distribution was dvlopd basd on th xisting trfic counts and knowldg of th study ara and rflcts incrasd Hyatt Pl xpansion trips using th Old Davis Road xtnsion. Trips to and from th Hyatt Pl hotl originat from, and ar bound for, downtown Davis via 1 st Strt, south Davis via Richards Boulvard, th UC Davis campus via California Avnu, th Bay Ara via I-80 Wst, and Sramnto via I-80 East. Figur 6 shows th pak hour trfic volums and lan configurations for th Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion scnario. 14

19 Richards Blvd H # # Ar bortum Dr. y East Quad Wst Quad Mrak Hall Dr. Hilgard Ln. North Quad Klibr Hall Rd. Hutc hinson Dr. Bioltti Wy. California Av. # # R Extnsion Cntr Dr. La Ru Rd. Hutchinson Dr. Garrod Dr. þ113 Equstrian Ln. ST 30%! 2! 1 ST 15%! 3 ST 35%! 4! 5! 6 ST 10%!! 8 7 ST 10%! 9 80 HYATT PLACE EXPANSION TRIP DISTRIBUTION - WITHOUT OLD DAVIS ROAD EXTENSION FIGURE 2 # Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig02_trip_dist.mxd LEGEND ST 15% # Trip Distribution Hyatt Pl Expansion Sit N NOT TO SCALE

20 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av. Arbo rtum Dr.! 6 E St. B St.! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 66 (27) 44 (314) 362 (76) 2 (2) 64 (15) c c a 44 (78) 15 (35) I-80 EB On-Ramp 37 (305) 73 (333) ccf b 20 (62) 386 (92) 469 (108) 3 (1) 37 (8) I-80 WB Off-Ramp 60 (247) 85 (132) 244 (116) 468 (116) c California Av. 100 (128) 57 (407) 299 (221) 254 (27) Hilgard Ln. 17 (228) 9 (54) 140 (307) 65 (13) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 217 (227) 91 (48) 185 (249) 43 (18) g Mrak Hall Rd. 6 (22) 20 (71) 3 (2) 1 (3) 2 (1) a d 1 (0) 53 (63) 102 (349) 61 (68) 15 (1) 397 (199) 52 (173) 92 (228) (111) (315) cf 250 (247) 286 (167) 2 (23) 10 (42) 298 (547) (22) 75 (160) 7 3 (2) (10) 21 (29) a1 117 (211) 549 (422) 84 (134) 196 (284) 9. Oliv Dr./Richards Blvd. Oliv Dr. (23) 444 (836) a22 24 (59) 12 (19) 3 (1) 23 (43) d (165) 12 (10) a (100) f 26 (22) 666 (656) 30 (46) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign Hyatt Pl Expansion Sit N NOT TO SCALE Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig03_phtv_xPHP_con.mxd PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - EXISTING PLUS HYATT PLACE EXPANSION FIGURE 3

21 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av.! 6 E St. B St. O l d Davis Ext nsi o n! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 66 (27) 39 (270) 326 (71) 2 (2) 64 (15) c c a 44 (78) 15 (35) I-80 EB On-Ramp 33 (262) 68 (289) ccf b 20 (62) 350 (87) 424 (102) 3 (1) 37 (8) I-80 WB Off-Ramp 60 (247) 82 (129) 244 (116) 387 (105) c California Av. 98 (125) 48 (320) 283 (207) 186 (27) Hilgard Ln. 17 (153) 9 (129) 129 (292) 133 (13) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 60 (30) 232 (306) 35 (90) 25 (40) g Mrak Hall Rd. 20 (25) 227 (215) 3 (2) 1 (3) 2 (1) a d 1 (0) 53 (63) 98 (420) 61 (68) 15 (1) 461 (195) 50 (209) 90 (263) (109) (315) cf 250 (247) 318 (165) 2 (23) 10 (42) 296 (582) (22) 75 (160) 7 3 (2) (10) 21 (29) a1 117 (211) 581 (420) 84 (134) 196 (284) 9. Oliv Dr./Richards Blvd. Oliv Dr. (23) 442 (871) a22 24 (59) 12 (19) 3 (1) 23 (43) d (165) 12 (10) a (100) f 26 (22) 698 (654) 30 (46) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign N NOT TO SCALE Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig04_phtv_xPO_con.mxd PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - EXISTING PLUS OLD DAVIS ROAD EXTENSION FIGURE 4

22 Richards Blvd H # ST 15% # Old Davis Extnsion Ar bortum Dr. y East Quad Wst Quad Mrak Hall Dr. Hilgard Ln. North Quad Klibr Hall Rd. Hutc hinson Dr. Bioltti Wy. California Av. # # R Extnsion Cntr Dr. La Ru Rd. Hutchinson Dr. Garrod Dr. þ113 Equstrian Ln. ST 25%! 2! 1 ST 15%! 3 ST 30%! 4! 5! 6 ST 15%! 7! 8! 9 80 HYATT PLACE EXPANSION TRIP DISTRIBUTION - WITH OLD DAVIS ROAD EXTENSION FIGURE 5 # Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig05_trip_distFU.mxd LEGEND ST 15% # Trip Distribution Hyatt Pl Expansion Sit N NOT TO SCALE

23 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av.! 6 E St. B St. O l d Davis Ext nsi o n! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 66 (27) 44 (275) 331 (75) 2 (2) 64 (15) c c a 44 (78) 15 (35) 37 (266) 73 (294) ccf b 20 (62) 355 (91) 430 (107) 3 (1) 37 (8) 60 (247) 85 (132) 244 (116) 398 (114) c 100 (128) 57 (330) 297 (219) 186 (27) Hilgard Ln. 17 (153) 9 (129) 140 (305) 133 (13) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 60 (30) 246 (318) 35 (90) 25 (40) g 20 (25) 238 (228) 3 (2) 1 (3) 2 (1) a d 1 (0) 53 (63) 102 (426) 61 (68) 15 (1) 467 (201) (112) (315) 52 (212) 92 (266) (247) cf (168) (22) 75 (160) 7 3 (2) 2 (23) 10 (42) 298 (585) (10) 21 (29) a1 117 (211) 584 (423) 84 (134) 196 (284) 9. Oliv Dr./Richards Blvd. (23) 444 (874) a22 24 (59) Oliv Dr. 12 (19) 3 (1) 23 (43) d (165) 12 (10) a (100) f 26 (22) 701 (657) 30 (46) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign Hyatt Pl Expansion Sit Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig06_phtv_xPHPO_con.mxd N NOT TO SCALE PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - EXISTING PLUS HYATT PLACE EXPANSION AND OLD DAVIS ROAD EXTENSION FIGURE 6

24 INTERSECTIONS Intrsction oprations wr analyzd using th pak hour trfic volums and lan configurations shown in Figurs 3, 4, and 6; Tabl 9 shows th xisting plus projct dlay and lvl of srvic at th study intrsctions. TABLE 9: INTERSECTION DELAY / LEVEL OF SERVICE EXISTING PLUS PROJECT CONDITIONS Dlay / LOS 1 Intrsction Control Pak Hour Existing Existing Plus Hyatt Pl Expansion Existing Plus Old Davis Road Extnsion Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion Avrag Worst- Dlayd Movmnt Avrag Worst- Dlayd Movmnt Avrag Worst- Dlayd Movmnt Avrag Worst- Dlayd Movmnt UC Davis Campus Intrsctions Old Davis Road / I-80 Eastbound Sid Strt Stop-Controlld 10 / B 9 / A 15 / B 29 / D 11 / B 10 / A 15 / C 31 / D 10 / A 8 / A 14 / B 24 / C 10 / A 8 / A 14 / B 25 / C Old Davis Road / I-80 Wstbound Sid Strt Stop-Controlld 10 / B 2 / A 21 / C 13 / B 11 / B 2 / A 22 / C 13 / B 9 / A 2 / A 14 / B 13 / B 9 / A 2 / A 18 / C 13 / B Old Davis Road / California Avnu Sid Strt Stop-Controlld 8 / A 10 / A 38 / E 26 / D 8 / A 10 / B 43 / E 28 / D 7 / A 9 / A 32 / D 21 / C 8 / A 9 / A 35 / D 22 / C Old Davis Road / Hilgard Lan Sid Strt Stop-Controlld 1 / A 11 / B 17 / C 37 / E 1 / A 12 / B 17 / C 41 / E 2 / A 6 / A 19 / C 24 / C 2 / A 6 / A 19 / C 26 / D Old Davis Road / Mrak Hall Driv Signalizd 22 / C 32 / C 25 / C 36 / D 19 / B 16 / B 19 / B 17 / B City of Davis Intrsctions 1 st Strt / A Strt Sid Strt Stop-Controlld 14 / B 13 / B 77 / F 3 18 / C 14 / B 13 / B 80 / F 3 19 / C 20 / C 15 / C 3 21 / C 20 / C 15 / C 3 22 / C 1 st Strt / B Strt All Way Stop 14 / B 16 / C 14 / B 16 / C 16 / C 17 / C 16 / C 17 / C 1 st Strt / Richards Boulvard 2 Signalizd 24 / C 27 / C 24 / C 27 / C 24 / C 27 / C 25 / C 27 / C Oliv Driv / Richards Boulvard 2 Signalizd 24 / C 15 / B 24 / C 15 / B 22 / C 15 / B 22 / C 15 / B Nots: 1 Intrsction dlay is rportd in sconds pr vhicl, and is basd on th avrag of all approhs for all-way stop controlld intrsctions and signalizd intrsctions pr HCM mthodology. For sid-strt stop controlld intrsctions, th dlay and LOS is rportd for both th avrag of all approhs and th worst-dlayd movmnt. 2 Uniqu conditions of Richards Boulvard discussd in Existing Conditions chaptr of this rport. 3 Dos not mt MUTCD pak hour signal warrant Bold txt indicats a congstd condition (LOS F) at City of Davis Cor Ara intrsctions. Sourc: Fhr & Prs,

25 As shown in Tabl 9, th addition of trfic from th Old Davis Road xtnsion and/or Hyatt Pl xpansion dos not caus any intrsctions oprating cptably in th Existing Conditions scnario to oprat uncptably. In th Existing Plus Hyatt Pl Expansion scnario, dlay for th worst-cas movmnts oprating at LOS E or wors incrass bcaus of th addition of projct trfic at th following intrsctions: Old Davis Road / California Avnu pak hour, worst-cas movmnt is LOS E Old Davis Road / Hilgard Lan pak hour, worst-cas movmnt is LOS E 1st Strt / A Strt pak hour, worst-cas movmnt is LOS F In th Existing Plus Old Davis Road Extnsion and Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion scnarios, dlay for th worst-cas movmnt incrass bcaus of th addition of projct trfic at th 1 st Strt / A Strt intrsction ( pak hour, worst-cas movmnt is LOS F). ROADWAY SEGMENTS Tabl 10 shows th xisting plus projct pak hour and daily vhicular trfic volums on Old Davis Road btwn I-80 and California Avnu. TABLE 10: ROADWAY TRAFFIC VOLUMES EXISTING PLUS PROJECT CONDITIONS Pak Hour Location Old Davis Road b/t I-80 and California Avnu Pak Hour Old Davis Road b/t I-80 and California Avnu Daily Old Davis Road b/t I-80 and California Avnu Sourc: Fhr & Prs, 2011 Existing Volum Existing Plus Hyatt Pl Expansion Existing Plus Old Davis Road Extnsion Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion ,330 7,632 6,740 6,995 As shown in Tabl 10, th daily volum on Old Davis Road would incras as a rsult of th proposd Hyatt Pl xpansion. Th daily volum on Old Davis Road btwn I-80 and California Avnu would dcras as a rsult of th proposd Old Davis Road xtnsion; som South Entry Parking Structur trfic to-from th I-80 / Old Davis Road intrchang rrouts through downtown Davis and to roadway filitis south of th Oliv Driv / Richard Boulvard intrsction with th construction of th Old Davis Road xtnsion. 21

26 BICYCLE AND PEDESTRIAN FACILITIES Th proposd Hyatt Pl xpansion will incras trfic on roadways. Whr bicyclists shar th road with vhicls, incrasd trfic will impt conditions for bicyclists. Addd roadway trfic will impt conditions for pdstrians, spcially at uncontrolld crossings. Howvr, bcaus th amount of trfic addd by th projct is small, th impt is considrd lss-than-significant. Th proposd Old Davis Road xtnsion will dcras volums on Old Davis Road wst of th South Entry Parking Structur; howvr, th xtnsion will incras volums on Old Davis Road ast of th South Entry Parking Structur, on 1 st Strt, and on Richards Boulvard. Th proposd Old Davis Road xtnsion will improv conditions for bicyclists and pdstrians by providing a continuous on-strt bik lan and sidwalks. Th xtnsion of Old Davis Road will also clos Arbortum Driv to vhicl trfic; thrby turning it into a fility xclusivly for us by bicyclists and pdstrians. Srvic vhicls and mrgncy vhicls will also b allowd to us th fility. Th Univrsity should nsur that Arbortum Driv and th Arbortum Driv / Mrak Hall Driv and Arbortum Driv / A Strt intrsctions mt all California Manual on Uniform Trfic Control Dvics (MUTCD) critria for bicyclist and pdstrian circulation. IMPACT SUMMARY Chaptr 1 outlins th significanc critria usd to idntify impts at intrsctions on th UC Davis campus and in th City of Davis. Chaptr 3 analyzs th xisting plus projct scnarios and, as shown in Tabl 9, th avrag dlay and lvl of srvic of all movmnts is cptabl at all of th study intrsctions with th addition of projct trips. Accordingly, th projct-spcific impts of th Hyatt Pl hotl xpansion and Old Davis Road xtnsion to on- and off-campus intrsctions would b lss-thansignificant. UC Davis Campus Intrsctions In som scnarios, th addition of projct trips at study intrsctions incrass dlay for worst-cas movmnts oprating at LOS E or wors. For ths intrsctions, a significant trfic impt is dfind whn th addition of projct trfic causs th avrag of all movmnts to dtriorat from an cptabl lvl (LOS D) to an uncptabl lvl. Although uncptabl oprations for th worst-cas movmnt at unsignalizd intrsctions ar not significant projct impts, improvmnts ar idntifid to improv oprations for th worst-cas movmnt for us by UC Davis in futur planning. Trfic oprations for th worst-cas movmnt could b improvd by implmnting th masurs discussd blow. Old Davis Road / California Avnu Th 2003 LRDP EIR idntifid th following mitigation masurs for impts to this intrsction: Install a trfic signal at th Old Davis Road / California Avnu intrsction or construct th nw roadway proposd in th 2003 LRDP btwn Old Davis Road and La Ru Road. Sinc th compltion of th 2003 LRDP EIR, th Univrsity has lctd to construct a roundabout at th Old Davis Road / California Avnu intrsction instad of a trfic signal. Old Davis Road / Hilgard Lan Th installation of a roundabout or trfic signal would improv oprations for th worst-cas movmnt and oprations for th ovrall intrsction would rmain cptabl. This intrsction dos not mt th Caltrans Pak Hour Trfic Signal Warrant in th Existing Plus Hyatt Pl Expansion and Old Davis Road Extnsion scnario. 22

27 City of Davis Intrsctions Th addition of projct trips xrbats th congstd condition (LOS F) of th 1 st Strt / A Strt intrsction. For this intrsction, a significant trfic impt is dfind whn th addition of projct trfic xrbats a congstd condition (LOS F in th Cor Ara and mts th MUTCD pak hour signal warrant without th projct) by incrasing th ovrall intrsctions volum by mor than on prcnt. Furthr analysis of th intrsction showd that pak hour signal warrants ar not mt at th 1 st Strt / A Strt intrsction in any of th Existing Plus Projct scnarios; thrfor th impt to this intrsction is lss-than-significant. Th 2003 LRDP EIR idntifid th following mitigation masurs for impts to th study intrsctions of this study: 1 st Strt / A Strt: Construct a roundabout or install a trfic signal at th 1 st Strt / A Strt intrsction This mitigation masur would b triggrd whn th intrsction mts th MUTCD pak hour signal warrant without th projct. 23

28 4. CUMULATIVE CONDITIONS Thr ar fiv cumulativ scnarios: 1. Cumulativ No Projct 2. Cumulativ Plus Davis Hotl 3. Cumulativ Plus Hyatt Pl Expansion 4. Cumulativ Plus Old Davis Road Extnsion 5. Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion CUMULATIVE NO PROJECT Trfic Forcasts Trfic forcasts for th Cumulativ No Projct scnario wr prpard using th Davis Travl Dmand Modl via th diffrnc mthod, which adds th diffrnc btwn th bas and futur yar modl runs to xisting counts. Figur 7 shows th Cumulativ No Projct pak hour trfic volums and lan configurations. Roadway Ntwork With th xcption of th Old Davis Road / California Avnu intrsction, all cumulativ scnarios assum that th xisting lan configurations and trfic controls rmain unchangd. Th Univrsity is currntly finalizing plans to install a roundabout at th Old Davis Road / California Avnu intrsction. Bcaus this projct is fully fundd, this study s cumulativ analysis scnarios assum that th roundabout will b in pl. CUMULATIVE PLUS DAVIS HOTEL To count for all rasonably forsabl projcts, this scnario counts for th rplmnt of th Univrsity Park Inn & Suits in th City of Davis (rfrrd to in this study as th City of Davis hotl ). Assumptions for th City of Davis hotl wr basd on th bst information availabl during th prparation of this study; this purpos of this study is not to assss potntial impts of th City of Davis hotl. To dvlop th Cumulativ Plus Davis Hotl scnario, nw trips gnratd by th proposd City of Davis hotl (byond th trips alrady gnratd by th Univrsity Park Inn & Suits and Cfé Italia) wr addd to th Cumulativ No Projct forcasts. 24

29 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av. Arbo rtum Dr.! 6 E St. B St.! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 230 (75) 210 (500) 460 (160) 115 (30) c c a 75 (245) 25 (85) I-80 EB On-Ramp 55 (450) 325 (545) ccf b 50 (230) 485 (175) 610 (220) 115 (30) I-80 WB Off-Ramp 300 (460) 125 (185) 325 (220) 470 (145) c California Av. 160 (175) 85 (430) 330 (290) 265 (40) Hilgard Ln. 35 (260) 60 (110) 210 (345) 125 (70) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 220 (235) 170 (165) 185 (250) 50 (60) g Mrak Hall Rd. 30 (50) 150 (165) a d 5 (0) 65 (155) 190 (445) 65 (70) (310) 325 (125) 265 (315) 90 (260) 145 (240) cf 255 (295) 445 (265) 10 (110) 130 (235) 5 (25) 45 (45) 405 (545) 615 (420) 95 (340) 210 (360) (15) 85 (90) a5 150 (215) 9. Oliv Dr./Richards Blvd. Oliv Dr. (25) 635 (905) a25 (65) 15 (20) 30 (60) d f 30 (25) 665 (865) 30 (50) (235) 15 (20) a (100) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign Roundabout N NOT TO SCALE Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig07_phtv_cuNP_con.mxd PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE NO PROJECT FIGURE 7

30 Davis Hotl Trip Gnration Th xisting Univrsity Park Inn & Suits in th City of Davis has 45 hotl rooms and a 4,600 squar foot rstaurant. Th proposd City of Davis hotl would rpl th xisting Univrsity Park Inn & Suits and would hav 125 hotl rooms, a 17,200 squar foot confrnc cntr, and a 6,800 squar foot rstaurant. Tabl 11 shows th nt pak hour trip gnration of th City of Davis hotl. TABLE 11: CITY OF DAVIS HOTEL TRIP GENERATION Land Us Quantity Trip Rat Trips Pak Hour Pak Hour Pak Hour Pak Hour Existing Univrsity Park Inn & Suits Hotl 45 rooms / room 0.70 / room Rstaurant 4.6 ksf / ksf / ksf Existing Subtotal Proposd City of Davis Hotl Hotl 125 rooms / room 0.70 / room Confrnc Cntr ksf N/A N/A Rstaurant 6.8 ksf / ksf / ksf /3 Intrnalization rduction for rstaurant trips 4 (-26) (-25) Proposd Subtotal Nt Trip Gnration ( = Proposd Subtotal Existing Subtotal) Nots: 1 Basd on avrag trip rat for hotl from Trip Gnration (Institut of Transportation Enginrs, 2008). 2 Basd on avrag trip rat for high-turnovr rstaurant from Trip Gnration (Institut of Transportation Enginrs, 2008). 3 Th City of Davis hotl projct applicant stimats that, on avrag, 200 confrnc attnds will b coming from outsid th hotl; th assumd vhicl occupancy for a confrnc cntr is 1.5 prsons/vhicl 4 Th City of Davis hotl projct applicant stimats that 1/3 of rstaurant patrons will b hotl gusts Sourc: Fhr & Prs, 2011 Davis Hotl Trip Distribution Figur 8 shows th trip distribution for th City of Davis hotl trips. This trip distribution was dvlopd basd on xisting trfic counts and knowldg of th study ara. Trips to and from th City of Davis hotl originat from, and ar bound for, th UC Davis campus via 1 st Strt, downtown Davis via Richards Boulvard, I-80 via Richards Boulvard, and south Davis via Richards Boulvard. To dvlop th Cumulativ Plus Davis Hotl scnario, trips gnratd by th proposd City of Davis hotl wr addd to th Cumulativ No Projct forcasts cording to th trip distribution shown in Figur 8. Figur 9 shows th pak hour trfic volums and lan configurations for th Cumulativ Plus Davis Hotl scnario. 26

31 Richards Blvd H # # # # # # Old Davis Extnsion y North Quad # East Quad Wst Quad Klibr Hall Rd. Ar bortum Dr. Mrak Hall Dr. # Hilgard Ln. Hutc hinson Dr. Bioltti Wy. California Av. # ST 3%! 3 ST 1%!! 4 5 ST 3%! 6 ST 1% ST 3% ST 7% ST 7% ST 2% ST 73%! 7! 8! 9 R Extnsion Cntr Dr. La Ru Rd. Hutchinson Dr. Garrod Dr. þ113 Equstrian Ln.! 2! 1 Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig08_trip_distFU2.mxd 80 LEGEND ST 15% # Trip Distribution City of Davis Hotl Sit N NOT TO SCALE CITY OF DAVIS HOTEL TRIP DISTRIBUTION FIGURE 8

32 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av. Arbo rtum Dr.! 6 E St. B St.! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 230 (75) 210 (500) 460 (160) 115 (30) c c a 75 (245) 25 (85) I-80 EB On-Ramp 55 (450) 325 (545) ccf b 50 (230) 485 (175) 610 (220) 115 (30) I-80 WB Off-Ramp 300 (460) 130 (186) 325 (220) 470 (145) c California Av. 161 (180) 85 (430) 335 (291) 265 (40) Hilgard Ln. 35 (260) 65 (111) 211 (350) 126 (75) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 230 (237) 170 (165) 187 (260) 50 (60) g Mrak Hall Rd. 30 (50) 150 (165) a d 5 (0) 65 (155) 200 (447) 65 (72) (320) 90 (260) 155 (242) 325 (125) 278 (317) cf 257 (306) 447 (277) 5 (25) 45 (45) 430 (549) (110) 135 (236) 10 (15) 85 (90) a5 161 (217) 619 (445) 96 (345) 212 (371) 9. Oliv Dr./Richards Blvd. Oliv Dr. 17 (28) 34 (85) (27) 668 (910) a33 25 (65) d (235) 15 (20) a (101) f 55 (29) 670 (898) 31 (53) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign City of Davis Hotl Sit Roundabout N NOT TO SCALE Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig09_phtv_cuPP_DH_con.mxd PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE PLUS DAVIS HOTEL FIGURE 9

33 CUMULATIVE PLUS HYATT PLACE EXPANSION To dvlop th Cumulativ Plus Hyatt Pl Expansion scnario, trips gnratd by th proposd Hyatt Pl xpansion wr addd to th Cumulativ No Projct trfic forcasts. Th Cumulativ Plus Hyatt Pl Expansion scnario trip gnration and distribution ar consistnt with thos from th Existing Plus Hyatt Expansion scnario, shown in Tabl 8 and Figur 2, rspctivly. Figur 10 shows th Cumulativ Plus Hyatt Pl Expansion scnario trfic volums. CUMULATIVE PLUS OLD DAVIS ROAD EXTENSION Analysis using th Davis Travl Dmand Modl showd that closing Arbortum Driv and adding th Old Davis Road xtnsion rsultd in th following: Trips prviously using Arbortum Driv wr rroutd onto th Old Davis Road xtnsion Som South Entry Parking Structur trips to/from th I-80 / Old Davis Road intrchang rroutd to downtown Davis and roadway filitis south of th Oliv Driv / Richards Boulvard intrsction To dvlop trfic forcasts for th Cumulativ Plus Old Davis Road Extnsion scnario, Cumulativ No Projct trfic forcasts wr manually adjustd as follows: Trfic from Arbortum Driv was rroutd to th Old Davis Road xtnsion Som south Entry Parking Structur trfic to/from th I-80 / Old Davis Road intrchang was rroutd through downtown Davis and roadway filitis south of th Oliv Driv / Richards Boulvard intrsction. Intrsction turning movmnt counts from th 2003 Long Rang Dvlopmnt Plan Trfic Impt Study at th Arbortum Driv / Mrak Hall Driv intrsction wr usd to stablish appropriat lvls of trfic on Mrak Hall Driv. Figur 11 shows th Cumulativ Plus Old Davis Road Extnsion trfic volums. CUMULATIVE PLUS DAVIS HOTEL, HYATT PLACE EXPANSION, AND OLD DAVIS ROAD EXTENSION To dvlop th Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion scnario trfic forcasts, th trips gnratd by th proposd City of Davis hotl and Hyatt Pl xpansion wr addd to th Cumulativ Plus Old Davis Road Extnsion scnario trfic forcasts. Th trip distribution for th City of Davis hotl and Hyatt Pl xpansion ar consistnt with thos shown in Figur 8 and Figur 5, rspctivly. Figur 12 shows th pak hour trfic volums and lan configurations for th Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion scnario. 29

34 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av. Arbo rtum Dr.! 6 E St. B St.! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 230 (75) 215 (506) 466 (165) 115 (30) c c a 75 (245) 25 (85) I-80 EB On-Ramp 59 (456) 330 (551) ccf b 50 (230) 491 (180) 617 (226) 115 (30) I-80 WB Off-Ramp 300 (460) 128 (188) 325 (220) 483 (156) c California Av. 162 (178) 94 (442) 346 (304) 265 (40) Hilgard Ln. 35 (260) 60 (110) 221 (360) 125 (70) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 220 (235) 186 (179) 185 (250) 54 (64) g Mrak Hall Rd. 34 (54) 161 (180) a d 5 (0) 65 (155) 194 (449) 65 (70) (314) 92 (262) 147 (242) 327 (127) 265 (315) cf 255 (295) 447 (267) 5 (25) 45 (45) 407 (547) (110) 130 (235) 10 (15) 85 (90) a5 150 (215) 617 (422) 95 (340) 210 (360) 9. Oliv Dr./Richards Blvd. Oliv Dr. 15 (20) 30 (60) (25) 637 (907) a25 (65) d (235) 15 (20) a (100) f 30 (25) 667 (867) 30 (50) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign Hyatt Pl Expansion Sit Roundabout N NOT TO SCALE Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig10_phtv_cuPP_HPE_con.mxd PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE PLUS HYATT PLACE EXPANSION FIGURE 10

35 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av.! 6 E St. B St. O l d Davis Ext nsi o n! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 230 (75) 210 (450) 425 (160) 115 (30) c c a 75 (245) 25 (85) I-80 EB On-Ramp 55 (405) 325 (495) ccf b 50 (230) 450 (175) 560 (220) 115 (30) I-80 WB Off-Ramp 300 (460) 125 (185) 325 (220) 385 (145) c California Av. 160 (175) 85 (335) 330 (290) 180 (40) Hilgard Ln. 35 (165) 60 (205) 210 (345) 210 (70) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 80 (50) 310 (445) 35 (100) 25 (40) g Mrak Hall Rd. 20 (25) 385 (315) a d 5 (0) 65 (155) 190 (540) 65 (70) (310) 90 (308) 145 (287) 368 (125) 265 (315) cf 255 (295) 487 (265) 5 (25) 45 (45) 405 (592) (110) 130 (235) 10 (15) 85 (90) a5 150 (215) 657 (420) 95 (340) 210 (360) 9. Oliv Dr./Richards Blvd. Oliv Dr. 15 (20) 30 (60) (25) 635 (952) a25 (65) d (235) 15 (20) a (100) f 30 (25) 707 (865) 30 (50) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign Roundabout N NOT TO SCALE Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig11_phtv_cuPP_ODE_con.mxd PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE PLUS OLD DAVIS ROAD EXTENSION FIGURE 11

36 Extnsion Cntr Dr. Hutchison Dr. La Ru Rd. Klibr Hall Rd. Hut Bioltti Wy. chinson Dr. California Av.! 6 E St. B St. O l d Davis Ext nsi o n! 7! 8! 9 Oliv Dr. Richards Blvd. þ113 Garrod Dr. Hilgard Ln. Mrak Hall Dr.! 2! 1! 3! 4! /I-80 EB Ramps 2. /I-80 WB Ramps 3. /California Av. 4. /Hilgard Ln. 230 (75) 215 (455) 430 (164) 115 (30) c c a 75 (245) 25 (85) 59 (410) 330 (500) ccf b 50 (230) 455 (179) 566 (225) 115 (30) 300 (460) 133 (189) 325 (220) 396 (154) c 163 (183) 94 (345) 349 (303) 180 (40) 35 (165) 65 (206) 222 (363) 211 (75) 5. /Mrak Hall Rd. 6. / 7. /B St. 8. /Richards Blvd. 90 (52) 324 (457) 37 (110) 25 (40) g 20 (25) 396 (328) a d 5 (0) 65 (155) 204 (548) 65 (72) (326) 92 (311) 157 (292) 371 (128) 278 (317) cf 257 (306) 492 (280) 5 (25) 45 (45) 432 (599) (110) 135 (236) 10 (15) 85 (90) a5 161 (217) 664 (448) 96 (345) 212 (371) 9. Oliv Dr./Richards Blvd. 17 (28) 34 (85) (27) 670 (960) a33 25 (65) d (235) 15 (20) a (101) f 55 (29) 715 (901) 31 (53) LEGEND aturn Lan ()! 1 Pak Hour Trfic Volum Study Intrsction Trfic Signal Stop Sign Hyatt Pl Expansion Sit City of Davis Hotl Sit Roundabout Path: N:\2008Projcts\2602H_HyattPlUCDavis\Graphics\Drt\GIS\MXD\fig12_phtv_cuPP_ALL_con.mxd N NOT TO SCALE PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE PLUS DAVIS HOTEL, HYATT PLACE EXPANSION AND OLD DAVIS ROAD EXTENSION FIGURE 12

37 INTERSECTIONS Figurs 7 and 9-12 show th pak hour trfic volums and lan configurations for h cumulativ scnario. Intrsction oprations wr analyzd using ths trfic volums and lan configurations; Tabl 12 shows th cumulativ dlay and lvl of srvic at th study intrsctions. Th Cumulativ Plus Davis Hotl scnario is th on which includs all rasonably forsabl projcts. Thrfor, it is th scnario against which th Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion scnario is compard to assss th impts of th Hyatt Pl xpansion and th Old Davis Road xtnsion. 33

38 TABLE 12: INTERSECTION DELAY / LEVEL OF SERVICE CUMULATIVE CONDITIONS Dlay / LOS 1 Intrsction Control Pak Hour Cumulativ No Projct Cumulativ Plus Davis Hotl Cumulativ Plus Hyatt Pl Expansion Cumulativ Plus Davis Cumulativ Plus Old Hotl, Hyatt Pl Davis Road Extnsion Expansion, and Old Davis Road Extnsion Avrag Worst- Dlayd Movmnt Avrag Worst- Dlayd Movmnt Avrag Worst- Dlayd Movmnt Avrag Worst- Dlayd Movmnt Avrag Worst- Dlayd Movmnt UC Davis Campus Intrsctions Old Davis Road / I-80 Eastbound Sid Strt Stop- Controlld 76 / F > 80 / F > 80 / F Old Davis Road / I-80 Wstbound Sid Strt Stop- Controlld 17 / C 4 / A 40 / E 46 / E 17 / C 4 / A 40 / E 46 / E 18 / C 5 / A 43 / E 47 / E 12 / B 4 / A 29 / D 40 / E 13 / B 4 / A 29 / D 41 / E Old Davis Road / California Avnu Roundabout 2 10 / B 8 / A 10 / B 8 / A 11 / B 8 / A 8 / A 7 / A 8 / A 8 / A Old Davis Road / Hilgard Lan Sid Strt Stop- Controlld 3 / A 17 / C 21 / C 66 / F 3 / A 18 / C 21 / C 71 / F 3 / A 18 / C 21 / C 72 / F 4 / A 8 / A 25 / C 34 / D 4 / A 8 / A 26 / D 38 / E Old Davis Road / Mrak Hall Driv Signalizd 26 / C 29 / C 29 / C 30 / C 25 / C 29 / C 25 / C 20 / C 26 / C 21 / C City of Davis Intrsctions 1 st Strt / A Strt Sid Strt Stop- Controlld 24 / C 23 / C 61 / F 24 / C 23 / C 68 / F 24 / C 23 / C 63 / F 38 / E 29 / D 61 / F 39 / E 31 / E 72 / F 1 st Strt / B Strt All Way Stop 27 / D 21 / C 29 / D 21 / C 28 / D 21 / C 37 / E 24 / C 40 / E 25 / C 1 st Strt / Richards Boulvard 3 Signalizd 38 / D 39 / D 38 / D 44 / D 46 / D Oliv Driv / Richards Boulvard 3 Signalizd 14 / B 19 / B 16 / B 21 / C 14 / B 19 / B 16 / B 20 / B 17 / B 22 / C Nots: 1 Intrsction dlay is rportd in sconds pr vhicl, and is basd on th avrag of all approhs for all-way stop controlld intrsctions and signalizd intrsctions pr HCM mthodology. For sid-strt stop controlld intrsctions, th dlay and LOS is rportd for both th avrag of all approhs and th most dlayd movmnt. 2 This analysis assums th construction of th Old Davis Road / California Avnu roundabout 3 Uniqu conditions of Richards Boulvard discussd in Existing Conditions chaptr of this rport. Purpl txt indicats uncptabl oprations (intrsction avrag LOS of E or F) at UC Davis Campus intrsctions Bold txt indicats a congstd condition (LOS F) at City of Davis Cor Ara intrsctions. Sourc: Fhr & Prs, 2011

39 As shown in Tabl 12, fiv of th study intrsctions hav ovrall intrsction conditions or worst-dlayd movmnts of LOS E or F in th Cumulativ Plus Davis Hotl scnario. Old Davis Road / I-80 Eastbound and pak hours, avrag dlay for all approhs is LOS F and worst-dlayd movmnt is LOS F Old Davis Road / I-80 Wstbound and pak hours, worst-dlayd movmnt is LOS E Old Davis Road / Hilgard Lan pak hour, worst-dlayd movmnt is LOS F 1 st Strt / A Strt and pak hours, worst-dlayd movmnt is LOS F 1 st Strt / Richards Boulvard pak hour, avrag dlay for all approhs is LOS F Th addition of trfic from th Hyatt Pl xpansion and Old Davis Road xtnsion (th Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion scnario) dtriorats th lvl of srvic at th following intrsctions: Old Davis Road / Hilgard Lan pak hour, LOS for worst-dlayd movmnt changs from LOS C to LOS D 1 st Strt / B Strt pak hour, avrag dlay for all approhs incrass from 29 sconds to 40 sconds; LOS for all approhs changs from LOS D to LOS E 35

40 ROADWAY SEGMENTS Tabl 13 shows th cumulativ pak hour and daily vhicular trfic volums on Old Davis Road btwn I-80 and California Avnu. TABLE 13: ROADWAY TRAFFIC VOLUMES CUMULATIVE CONDITIONS Location Cumulativ No Projct Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion Pak Hour Old Davis Road b/t I-80 and California Avnu 1,475 1,390 Pak Hour Old Davis Road b/t I-80 and California Avnu 1,410 1,314 Daily Old Davis Road b/t I-80 and California Avnu 16,300 15,280 Sourc: Fhr & Prs, 2011 As shown in Tabl 13, th daily volum on Old Davis Road btwn I-80 and California Avnu would dcras as a rsult of th proposd Old Davis Road xtnsion; som South Entry Parking Structur trfic to-from th I-80 / Old Davis Road intrchang rrouts through downtown Davis and to roadway filitis south of th Oliv Driv / Richard Boulvard intrsction with th construction of th Old Davis Road xtnsion. BICYCLE AND PEDESTRIAN FACILITIES Th proposd Hyatt Pl xpansion will incras trfic on roadways. Whr bicyclists shar th road with vhicls, incrasd trfic will impt conditions for bicyclists. Addd roadway trfic will impt conditions for pdstrians, spcially at uncontrolld crossings. Howvr, bcaus th amount of trfic addd by th projct is small, th impt is considrd lss-than-significant. Th proposd Old Davis Road xtnsion will dcras volums on Old Davis Road wst of th South Entry Parking Structur; howvr, th xtnsion will incras volums on Old Davis Road ast of th South Entry Parking Structur, on 1 st Strt, and on Richards Boulvard. Th proposd Old Davis Road xtnsion will improv conditions for bicyclists and pdstrians by providing a continuous on-strt bik lan and sidwalks. Th xtnsion of Old Davis Road will also clos Arbortum Driv to vhicl trfic; thrby turning it into a fility xclusivly for us by bicyclists and pdstrians. Srvic vhicls and mrgncy vhicls will also b allowd to us th fility. Th Univrsity should nsur that Arbortum Driv and th Arbortum Driv / Mrak Hall Driv and Arbortum Driv / A Strt intrsctions mt all California Manual on Uniform Trfic Control Dvics (MUTCD) critria for bicyclist and pdstrian circulation. FREEWAY DIVERSION ASSESSMENT Th Old Davis Road xtnsion is not xpctd to induc trfic from I-80 astbound. Th travl tim analysis showd that it is fastr to tak I-80 btwn Old Davis Road and M Boulvard than to us 36

41 local strts. Additionally, th numbr and typ of trfic controls ncountrd is similar with th Old Davis Road xtnsion: a trfic signal at th Old Davis Road / Mrak Hall Driv intrsction, an all-way stop at th Old Davis Road / Alumni Lan intrsction (vrsus th Mrak Hall Driv / Arborum Driv intrsction), and an all-way stop at th Arbortum Driv / A Strt intrsction. Bcaus th travl distanc and trfic controls for th proposd Old Davis Road xtnsion ar similar to th xisting travl distanc and trfic controls via Arbortum Driv, th proposd Old Davis Road xtnsion is not xpctd to induc frway trfic through campus. IMPACT SUMMARY AND MITIGATION MEASURE Chaptr 1 outlins th significanc critria usd to idntify impts at intrsctions on th UC Davis campus and in th City of Davis. Chaptr 4 analyzs th cumulativ plus projct scnarios and, as shown in Tabl 12, dtrmind that th following impt would occur. Impt 1 Implmntation of th proposd projct would xrbat congstd conditions at th 1 st Strt / A Strt intrsction. For th 1 st Strt / A Strt intrsction, a significant trfic impt is dfind whn th addition of projct trfic xrbats a congstd condition (LOS F in th Cor Ara and mts th MUTCD pak hour signal warrant without th projct) by incrasing th ovrall intrsction s volum by mor than on prcnt. Th 1 st Strt / A Strt intrsction mts th MUTCD pak hour signal warrant in th Cumulativ Plus Davis Hotl scnario; th addition of trfic from th Hyatt Pl xpansion and Old Davis Road xtnsion incrass th ovrall intrsction s and pak hour volum by 10% and 11%, rspctivly. Thrfor, th impt to th 1 st Strt / A Strt intrsction is a potntially significant impt undr cumulativ conditions. Significanc Significant and Unavoidabl Mitigation Masur Th 2003 LRDP EIR idntifid th following mitigation masur for impts to th 1 st Strt / A Strt intrsction: Construct a roundabout or install a trfic signal at th 1 st Strt / A Strt intrsction. This impt was prviously idntifid as a significant and unavoidabl impt in th crtification of th 2003 LRDP EIR. UC Davis adoptd LRDP Mitigation Masur (a-c) to assist th City of Davis in mitigating th idntifid impt. UC Davis continus to implmnt th LRDP Mitigation Masur (a-c) but cannot guarant implmntation of off-campus intrsction improvmnts that ar th rsponsibility of th City of Davis. Whil th indntifid impt rmains significant and unavoidabl, with a trfic signal or roundabout in pl at this intrsction, th intrsction would oprat at LOS C and LOS B in th and pak hours, rspctivly. 37

42 Additional Considrations UC Davis Campus Intrsctions At th Old Davis Road / I-80 Eastbound intrsction, th lvl of srvic for th avrag of all movmnts is LOS F in th Cumulativ No Projct scnario. At this intrsction, a significant impt is dfind whn th projct adds 10 or mor vhicl s to th intrsction s volum. Th Hyatt Pl hotl xpansion would add 11 vhicls to this intrsction in both th and pak hours. Howvr, th trfic volum at this intrsction dcrass as a rsult of th proposd Old Davis Road xtnsion by 35 and 50 vhicls in th and pak hours, rspctivly. Th combind ffct of both projcts is a nt dcras in volum at this intrsction. Thrfor, thr is not a significant impt in th Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion scnario. If th Hyatt Pl hotl xpansion projct to movs forward without th Old Davis Road xtnsion, this impt would b significant. Th 2003 LRDP EIR idntifid th following mitigation masurs for impts to this intrsction: Install a trfic signal at th EB I-80 Ramps / Old Davis Road intrsction. This intrsction dos not mt th Caltrans Pak Hour Trfic Signal Warrant in th Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion scnario. This intrsction is part of th Univrsity s Long Rang Dvlopmnt Plan Trfic and Circulation Mitigation Monitoring Program; improvmnts to this intrsction would b triggrd whn th Trfic and Circulation Mitigation Monitoring Program idntifis uncptabl intrsction oprations. In som scnarios, th addition of projct trips at study intrsctions incrass dlay for worst-cas movmnts oprating at LOS E or wors. For ths intrsctions, a significant trfic impt is dfind whn th addition of projct trfic causs th avrag of all movmnts to dtriorat from an cptabl lvl (LOS D) to an uncptabl lvl. At ths intrsctions, th avrag dlay and lvl of srvic of all movmnts is cptabl with th addition of projct trips. Although uncptabl oprations for th worst-cas movmnt at unsignalizd intrsctions ar not significant projct impts, improvmnts ar idntifid to improv oprations for th worst-dlayd movmnt for us by UC Davis in futur planning. Trfic oprations for th worst-cas movmnt could b improvd by implmnting th masurs discussd blow. Old Davis Road / I-80 Wstbound Th 2003 LRDP EIR idntifid th following mitigation masurs for impts to this intrsction: Install a trfic signal at th WB I-80 Ramps / Old Davis Road intrsction. This intrsction mts th Caltrans Pak Hour Trfic Signal Warrant in th Cumulativ Plus Davis Hotl, Hyatt Pl Expansion, and Old Davis Road Extnsion scnario. This intrsction is part of th Univrsity s Long Rang Dvlopmnt Plan Trfic and Circulation Mitigation Monitoring Program; improvmnts to this intrsction would b triggrd whn th Trfic and Circulation Mitigation Monitoring Program idntifis uncptabl intrsction oprations. 38

43 Old Davis Road / Hilgard Lan - Th installation of a roundabout or trfic signal would improv oprations for th worst-cas movmnt and oprations for th ovrall intrsction would rmain cptabl. This intrsction dos not mt th Caltrans Pak Hour Trfic Signal Warrant in th Existing Plus Hyatt Expansion scnario. This intrsction is part of th Univrsity s Long Rang Dvlopmnt Plan Trfic and Circulation Mitigation Monitoring Program; improvmnts to this intrsction would b triggrd whn th Trfic and Circulation Mitigation Monitoring Program idntifis uncptabl intrsction oprations. City of Davis Intrsctions At th 1 st Strt / B Strt intrsction, th avrag dlay for all approhs incrass from 29 sconds to 40 sconds and th LOS for all approhs changs from LOS D to LOS E. For this intrsction, a significant trfic impt is dfind whn th addition of projct trfic xrbats a congstd condition (LOS F and mts th MUTCD pak hour signal warrant without th projct). Bcaus this intrsction oprats bttr than LOS F, this chang of LOS would b a lss-than-significant impt. For th 1 st Strt / Richards Boulvard intrsction, a significant trfic impt is dfind whn th addition of projct trfic xrbats a congstd condition (LOS F in th Cor Ara) by incrasing th intrsction s avrag dlay by fiv sconds or mor. Th intrsction s avrag dlay is 94 sconds both with and without th addd trips from th Hyatt Pl xpansion and th Old Davis Road xtnsion. Thrfor, th impt to th 1 st Strt / Richards Boulvard intrsction would b a lss-than-significant impt. 39

44 APPENDIX A: TRAFFIC COUNTS 40

45 APPENDIX B: TECHNICAL CALCULATIONS 41