CRYSTAL HOUSE III TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VA

Transcription

1 CRYSTAL HOUSE III TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VA Prepared for: Roseland, A Mack-Cali Company Prepared by: Wells + Associates, Inc. Michael R. Pinkoske, PTP Henry C. Clarke, EIT May, 07

2 CRYSTAL HOUSE III TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VIRGINIA TABLE OF CONTENTS Page Section INTRODUCTION Section BACKGROUND INFORMATION 6 Public Road Network... 6 Non-Auto Facilities and Services... 6 General Land Use Plan (GLUP)... Existing Traffic Counts... On Street Parking... Pipeline Developments... 9 Planned Roadway Improvements... 9 Section TRANSPORTATION IMPACT ANALYSIS Study Scope... Existing Conditions Operational Analysis... Pipeline Development Vehicle-Trip Generation Analysis... Background Development Trip Distribution Analysis... Background Traffic Growth... Trips Associated with Planned 8 th Street S. Improvements... Future Peak Hour Traffic Forecasts without Development (00)... Operational Analysis of Future Conditions without Development (00)... Site Vehicle-Trip Generation Analysis... Site Access... Parking/Loading... Site Trip Distribution Analysis... Future Peak Hour Traffic Forecasts with Development (00)... Operational Analysis of Future Conditions with Development (00)... 7 Section CONCLUSIONS 8 FINAL TIA //0

3 CRYSTAL HOUSE III TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VIRGINIA LIST OF FIGURES FIGURE TITLE Page - Site Location Map... - Site Plan... - Existing Lane Use and Traffic Controls (07) Transit Facilities & Carshare Map Bike Facilities Map... - General Land Use Plan (GLUP)... - Existing Peak Hour Vehicular Traffic Volumes (07) Existing Peak Hour Pedestrian Volumes (07) Existing Peak Hour Bicycle Volumes (07) On-Street Parking Restrictions Pipeline Development Location Map Future Lane Use and Traffic Controls... - Pipeline Development Trip Assignments (00) Regional Growth (00) Reassignment of Existing Traffic with 8 th Street S. Median Removal Future Traffic Assignments without Development (00) Crystal House III Peak Hour Trip Assignments Total Future Weekday Peak Hour Traffic Forecasts with Development (00)... 6 LIST OF TABLES TABLE TITLE Page - Intersection Levels of Service Summary... - Intersection Queuing Summary... - Pipeline Site Trip Generation Summary Site Trip Generation Summary... FINAL TIA //0

4 CRYSTAL HOUSE III TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VIRGINIA LIST OF APPENDICES APPENDIX TITLE A Bikeshare and Bus Ridership Data B Existing Vehicular, Pedestrian, and Bicycle Traffic Counts C Scope of Work Agreement D Description of Levels of Service E Existing Intersection Levels of Service and Queues (07) F Pipeline Development Individual Peak Hour Traffic Forecasts G Future Intersection Levels of Service and Queues without Development (00) H Future Intersection Levels of Service and Queues with Development (00) FINAL TIA //0

5 Crystal House III SECTION INTRODUCTION This report presents the results of a Transportation Impact Analysis (TIA) for the proposed development of Crystal House III, located in Arlington County, Virginia. As shown on Figure -, the subject site is located in the southwest quadrant of the 8 th Street S./S. Eads Street intersection. The site is bounded by 8 th Street S. to the north, S. Eads Street to the east, nd Street S. to the south, and the S. Fern Street to the west. The site is located approximately 700 feet west of the Crystal City Metrorail Station on the Blue and Yellow Lines. In addition, the site is served by several bus lines and a connected network of streets, sidewalks and bike routes. The Applicant (Roseland, A Mack-Cali Company) proposed a Major. Site Plan Amendment application to change the orientation of the proposed residential building. The amendment maintains the approved dwelling units. Crystal House III was originally approved by the Arlington County Board as a major site plan amendment to the Crystal Towers site plan (SP #) on November, 006. The application, when approved, included a total of 7 residential units. In 007, a total unit count was administratively approved for an increase of five () dwelling units, resulting in a total of dwelling units. It is noted that a TIA was completed with the original application, however since the TIA was completed more than 0 years ago, Arlington County staff has requested that the TIA be updated. The current zoning designation for the subject site is RA6- (Apartment Dwelling District). The parcel is designated as a Medium Residential Development District on the Arlington County General Land Use Plan (GLUP). The site is currently improved with two () multifamily apartment buildings, Crystal House I and II, totaling 88 units and surface parking. Multiple access points exist to Crystal House I and II on 8 th Street S., S. Eads Street, nd Street S. and the S. Fern Street. Direct vehicular access to the proposed Crystal House III will be provided via a full access driveway, at the signalized intersection of S. Eads Street/ 0 th Street S., and a driveway on 8 th Street S. As proposed a portion of the existing surface parking lot would be razed and redeveloped with the proposed unit multi-family residential building with structured parking. Portions of the existing surface parking lot are proposed to be reconfigured to provide for additional open space. To offset the loss of surface parking additional parking will be provided within the below grade parking structure. As shown on Figure -, access to the parking garage is orientated along the proposed building s northwest façade. When complete, the overall development (Crystal House I, II and III) will include a total of,080 units and approximately,07 parking spaces (0.9 spaces per unit). FINAL TIA //0

6 Transportation Consultants INNOVATION + SOLUTIONS O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG S 9TH S S S S JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S 0TH S ST S ND S RD S JCP Figure - Site Location Map Crystal House III Arlington County, Virginia NORTH

7 Transportation Consultants INNOVATION + SOLUTIONS O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG S GARAGE ENTRANCE / EXIT LOADING S JCP Figure - Site Plan Crystal House III Arlington County, Virginia NORTH

8 Tasks undertaken in this study included the following:. Review the proposed site plan, development program, previous traffic studies, and other background data.. A field reconnaissance of existing roadways, lane use and traffic control, traffic signal phasing/timings, posted speed limits, pedestrian facilities, car and bike share facilities, and transit services.. Discussions with Arlington County staff regarding the scope of this TIA.. AM and PM peak hour traffic counts of vehicular, pedestrian and bicycle traffic at five () study intersections, including the two () site driveways.. Analyze existing AM and PM peak hour levels of service (LOS) and queues at each study intersection. 6. Estimate the numbers of AM and PM peak hour vehicle-trips that would be generated by two () pipeline developments based on previously approved traffic studies and/or the Institute of Transportation Engineer s (ITE) Trip Generation Manual, 9 th Edition rates and equations, including applicable non-auto mode split reductions. 7. The rerouting on existing traffic to account for the planned removal of the existing raised median on 8 th Street S. between S. Fern Street and S. Eads Street. 8. Forecast 00 AM and PM peak hour traffic volumes without development based on existing traffic counts, a growth rate of 0. percent per year (compounded), traffic that would be generated by the two () pipeline developments, and rerouted traffic due to future 8 th Street S. roadway improvements for build-out year 00 conditions. 9. Analyze future LOS and queues without development at each study intersection based on future traffic forecasts without development. 0. Estimate the numbers of AM and PM peak hour vehicle-trips that would be generated by the proposed development using the ITE Trip Generation Manual, 9 th Edition rates and equations, including applicable non-auto mode split reductions.. Forecast 00 AM and PM peak hour traffic volumes with development based on future traffic forecasts without development plus traffic peak hour traffic generated by the proposed development.. Analyze future LOS and queues with development at each study intersection based on future traffic forecasts with development. FINAL TIA //0

9 Sources of data for this analysis included traffic counts conducted by Wells + Associates Inc. (W+A); ITE; the Arlington County Department of Environmental Services (DES); the Arlington County General Land Use Plan (GLUP); WMATA; Bowman Consulting, and Roseland, A Mack-Cali Company. The principal findings of this traffic impact analysis are as follows:. The development of Crystal House III would have a negligible impact on the adjacent street network and operations at adjacent study intersections.. The subject site is located within a connected network of arterial and local streets, with sidewalks and on-street bike routes, and is located approximately 700 feet from Crystal City Metrorail Station.. The three () signalized study intersections currently operate at acceptable overall LOS C or better during both the AM and PM peak hours. Each approach at the signalized intersections also operate at acceptable levels of service (LOS D or better) during peak periods. At the unsignalized study intersections each approach currently operates at LOS C or better during the AM and PM peak hours.. Two () pipeline developments are estimated to generate a total of 8 AM peak hour trips, 96 PM peak hour trips and, daily trips upon full occupancy.. In the future without redevelopment and the addition of the pipeline developments, regional growth, and the planned roadway improvements on 8 th Street S., the signalized study intersections would continue to operate at acceptable overall LOS C or better during both the AM and PM peak hours, consistent with existing conditions. Each approach at the signalized intersections would also continue to operate at acceptable levels of service during peak periods. 6. The Crystal House III project is estimated to generate 6 AM peak hour trips, PM peak hour trips, and 660 daily trips. This assumes a 60% non-auto reduction based on the site s proximity to the Crystal City Metrorail Station and other non-auto facilities available in the vicinity of the site. 7. In the future with the addition of Crystal House III, all signalized study intersections would continue to operate at acceptable overall LOS C or better during both the AM and PM peak hours, consistent with existing and future conditions without development. Each approach at the signalized intersections would also continue to operate at acceptable levels of service during peak periods. When compared to future conditions without development the proposed development would result in less than a one () second increase in the overall average delay per vehicle at the signalized study intersections. 8. The proposed Crystal House III Transportation Management Plan (TMP) will reinforce the expected vehicle trip reductions given the projects location to transit, bicycle, and walking facilities which minimize the project s vehicular traffic impacts. FINAL TIA //0

10 SECTION BACKGROUND INFORMATION Public Road Network Existing Network. The proposed development is located within a connected transportation network that provides excellent regional and local accessibility by private vehicle, public transportation, walking, and bicycle. The grid system of roads provides motorists with options traveling to/from the site area and their origins/destinations. Regional assess to the Crystal House property is provided by Interstate 9 (I-9) and Jefferson David Highway (Route ). S. Eads Street, S. Fern Street, th Street S., S. Hayes Street/8 th Street S., and rd Street S. provide local access to the site. Access to Crystal House I and II is currently provided via a total of five () driveways. Direct vehicular accessed to the proposed Crystal House III via the driveway on 8 th Street S. and the signalized intersection of S. Eads Street and 0 th Street S. The existing intersection lane use and traffic control at the study intersections are shown on Figure -. Non-Auto Facilities and Services Overview. The subject site is well served by Metrorail, Metrobus, Arlington Transit (ART), the Potomac and Rappahannock Transportation Commission (PRTC), Loudon County Transit, car sharing, Capital Bikeshare, and on-street bike routes. These facilities are all generally within ¼ mile from the site. Figure - summarizes the existing transit facilities and car share options in the site area. Figure - shows the bike facilities in in the area of the site. Metrorail. The subject site is approximately 700 feet from the Crystal City Metrorail Station which serves the Blue and Yellow Lines. Access to the station to/from the site is provided by a connection system of sidewalks and marked crosswalks with pedestrian signals at the intersection of 8 th Street S./S. Eads Street. The Blue and Yellow Lines directly serves Arlington County, Fairfax County, and Alexandria in Virginia; the District of Columbia; and Prince George s County in Maryland. Metro passengers can on the Blue Line can transfer to the Orange and Silver Lines at the Rosslyn station, the Red Line at the Metro Center station, and Green Line at the L Enfant Plaza station. Passengers on the Yellow Line can transfer to the Orange, Silver and Green Lines at the L Enfant Plaza station, and Red Line at the Gallery Place station. The Silver Line will ultimately connect to Dulles International Airport, but currently terminates at the Wiehle-Reston East station. 6 FINAL TIA //0 6

11 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG * * YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S * * 0TH S 0TH ST S ND S RD S ND JCP Figure - Existing Lane Use and Traffic Controls (07) Crystal House III Arlington County, Virginia STOP * Represents One Travel Lane Signalized Intersection Stop Sign No Turn on Red (7am - 7pm) NORTH 7

12 A & B RD S ND S S S IVES S GRANT 0TH S S ART 9 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG 8 JCP CAR GO CAR GO Figure - Transit Facilities Map & Carshare Locations Crystal House III Arlington County, Virginia ST S 0TH S 9TH S S CAR GO CAR GO S METROWAY CAR GO 0A & T TH S S E LCT JEFFERSON DAVIS HIGHWAY (ROUTE ) ART PTRC L00 CRYSTAL CITY CRYSTAL DRIVE TH S Transportation Consultants CAR GO E INNOVATION + SOLUTIONS METRO 0A & T METRO A & B ART ART 9 LOUDOUN COUNTY TRANSIT METROWAY PRTC L00 METROSTATION BUS STOP ZIPCAR CARGO ENTERPRISE NORTH

13 Table - Crystal City Metrorail Station Headways Headway AM Rush :00 AM- 9:0 AM Midday Rush 9:0 AM- :00 PM PM Rush :00 PM- 7:00 PM Evening 7:00 PM- 9:0 PM Late Night 9:0 PM- Close Blue Line (Crystal City Metrorail Station) Average 6 Minutes Minutes 6 Minutes Minutes 0 Minutes Yellow Line (Crystal City Metrorail Station) Minimum 6 Minutes Minutes 6 Minutes Minutes 0 Minutes Metrobus/ART/Commuter Buses. The subject site is well served by both Metrobus and ART bus service. A bus stop which serves Metrobus 0A is located adjacent to the site, north of the S. Eads Street/0 th Street S./site driveway intersection. The Crystal City Metrorail Station, located two () blocks east of the site, is served by ART bus lines and 9, Metrobus Y, A and B and Metroway. Additionally, there are several bus stops located east of Route which serve the Potomac and Rappahannock Transportation Commission (PRTC) L00 and Loudon County Transit Bus. Table - below summarizes the bus headways in the vicinity of the site. Detailed bus stop usage and ridership data can be found in Appendix A. Table - Bus Headways in the vicinity of Crystal House Headway Northbound/Westbound Southbound/Eastbound AM Peak Period PM Peak Period AM Peak Period PM Peak Period Metrobus 0A Alexandria-Pentagon Line Average Headway 0 Minutes 0 Minutes 0 Minutes Minutes Metrobus A,B McLean-Crystal City Line Minimum Headway 7 Minutes Minutes Minutes Minutes Maximum Headway Minutes 7 Minutes 0 Minutes Minutes Metroway Average Headway 6 Minutes 6 Minutes 6 Minutes 6 Minutes Art Court House-Rosslyn-Crystal City Line Minimum Headway 0 Minutes 0 Minutes 0 Minutes 0 Minutes Maximum Headway 0 Minutes 0 Minutes 0 Minutes 0 Minutes ART 9 Crystal City-Long Bridge Park/Boeing-Pentagon Line Average Headway Minutes Minutes N/A N/A PRTC L00 Lake Ridge-Pentagon & Crystal City Minimum Headway N/A 6 Minutes 0 Minutes N/A Maximum Headway N/A 67 Minutes Minutes N/A Car Share. As shown on Figure -, multiple carsharing spaces are located in the vicinity of the subject site. Directly across from the site on S. Eads Street (and south of the Crystal City Metrorail Station), there is one () Zipcar available on street. East of the site there are two () Zipcars available in an outside lot near S. Bell Street/0 th Street S., two () available onstreet just south of 0 th Street S. on Crystal Drive, and two () available just north of 0 th 9 FINAL TIA //0 9

14 Street S. on Crystal Drive. North of the site, there are two () Zipcars available located north on along th Street S., east of S. Fern Street, as well as three () Zipcars available located across the street in The Gramercy. In addition to Zipcar, Enterprise CarShare and CarGo have available vehicles within walking distance of the site as shown on Figure -. Bikeshare. Capital Bikeshare stations within the vicinity of the site are in the following locations as shown on Figure -. 8 th Street S., east of S. Eads Street ( bikes) S. Eads Street, south of 6 th Street S. ( bikes) S. Bell Street, south of 8 th Street S. (8 bikes) Crystal Drive, north of 0 th Street S. (7 bikes) S. Eads Street, north of rd Street S. ( bikes) The Bikeshare stations near the site are well utilized, Table - below summarizes the average daily usage per month, as provided by Arlington County, for the three () stations closest to the site. Detailed Bikeshare data provided by Arlington County can be found in Appendix A. Table - Average Daily Bikeshare Trips per Month April May June July Aug Eads & th Street Eads & 8 th Street Eads & rd Street Source: Arlington County Sep. 06 Oct. 06 Nov. 06 Dec. 06 Jan. 07 Feb 07 N/A N/A Mar. 07 Bicycle Facilities. In addition to the Capital Bikeshare stations, bicycle connectivity is provided via on-street bike lanes on S. Hayes Street/8 th Street S., S. Eads Street, th Street S. and Crystal Drive, as shown on Figure -. The Arlington County Bike Map classifies S. Fern Street, rd Street S., S. Clark Street, S. Bell Street and parts of th Street S., 8 th Street S., and S. Eads Street, S. as bicycle friendly on-street routes. Further, Arlington County has plans to create a northbound bike lane as part of the th Street S./S. Clark-Bell Street Realignment project. 0 FINAL TIA //0 0

15 Transportation Consultants INNOVATION + SOLUTIONS O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG Figure - Bike Facilities Map JCP Crystal House III Arlington County, Virginia SOURCE: ARLINGTON COUNTY BIKE MAP NORTH

16 Pedestrian Facilities. Within the study area sidewalks are provided on both sides of the all streets. At the three () signalized intersections, crosswalks with pedestrian signals are present on all legs. At the unsignalized S. Eads Street/ nd Street S intersection a crosswalk is provided along the western leg. The pedestrian inventory by intersection is summarized in Table -. Table - Pedestrian Inventory by Intersection Intersection Pedestrian Heads/Countdown 8 th Street S./ S. Fern Street Yes 8 th Street S./ N/A Site Entrance (driveway) 8 th Street S./ S. Eads Street Yes S. Eads Street/ 0 th Street Yes S. Eads Street/ No rd Street S. (stop controlled) Type of Crosswalks All Legs High Visibility One Ramp per Crosswalk All Legs Tactile Warning Strip All Legs N/A N/A N/A All Legs High Visibility All Legs High Visibility Western Leg High Visibility All Legs All Legs Yes Western Leg All Legs None South Side of Crosswalk General Land Use Plan (GLUP)/Zoning The General Land Use Plan (GLUP) is an element of Arlington County s Comprehensive Plan and is the primary policy guide for future development within the County. The GLUP is used to establish the overall character, extent and location of various land uses. It serves as a guide to communicate the policy of the County Board to citizens, the business community, developers and others in the development of Arlington County. The current zoning designation for the parcel is RA6- (Apartment Dwelling District). As shown on Figure -, the parcel is designated as Medium Residential Development Districts on the Arlington County GLUP, which provides for residential uses. The GLUP provides designation to build the development, without needing to seek any amendments. Surrounding the site is a mix of Medium Residential to the west, High-Medium Residential to the north, High Office-Apartment-Hotel to the east, and Service Commercial Commercial and Industrial to the south. FINAL TIA //0

17 Transportation Consultants INNOVATION + SOLUTIONS O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG Figure - General Land Use Plan (GLUP) JCP Crystal House III Arlington County, Virginia SOURCE: ARLINGTON COUNTY NORTH

18 Existing Traffic Counts Existing AM and PM peak hour counts of vehicular, pedestrian, and bicycle traffic were conducted by Wells + Associates on Wednesday, May, 07, at the following intersections: S. Hayes Street/8 th Street S/S. Fern Street 8 th Street/Site Driveway 8 th Street S./S. Eads Street 0 th Street S./S. Eads Street/Site Driveway nd Street/S. Eads Street The traffic counts are included in Appendix B. The existing AM and PM peak hour vehicular, pedestrian, and bicycle traffic counts are summarized on Figures -, -6, and -7, respectively. Based on the results of these traffic counts, the peak hours of the adjacent street was identified as 8:00 to 9:00 AM and : to 6: PM. For purposes of this analysis a common peak hour was used. Figure - indicates that S. Eads Street, north of 0 th Street S. presently carries 76 vehicles during the AM peak hour and,9 vehicles during the PM peak hour. 8 th Street S., west of S. Eads Street, currently carries 7 vehicles during the AM peak hour and 668 vehicles during the PM peak hour. Figure -6 indicates that 60 pedestrian crossings occurred at the intersection of S. Eads Street and 8 th Street S. during the both the AM and PM peak hours. At the intersection of S. Eads Street and 0 th Street/site driveway 9 and 6 pedestrian crossings occurred during the AM and PM peak hours, respectively. Figure -7 indicates that the highest volume of bicycle traffic during the AM and PM peak hour occurred at the intersection of S. Hayes Street/8 th Street S. and S. Fern Street where 9 cyclists traversed the intersection during the AM peak hour and cyclists traversed the intersection during the PM peak hour. On-Street Parking Surrounding the site on street parking is available on all streets as summarized on Figure -8. North of the site, -hour paid on-street parking is provided along both sides of 8 th Street S. including a combination of pay on foot and metered spaces. East of the site, - hour paid on-street parking is provided on both sides of the street between 8 th Street S. and 0 th Street S, and along the west side of S. Eads Street between 0 th Street S. and nd Street S. South of the site. Additionally, there are two taxi stands southeast of the S. Eads Street/8 th Street S. intersection in front of The Westin. South of the site, along nd Street S., -hour paid parking is provided on the north side of the street, while two () hour paid parking is provided along the south side. West of the site, -hour paid parking is provided along the east side of S. Fern Street, while there are no parking restrictions along the west side between 8 th Street S. and 9 th Street S. Parking is restricted to Permit A holders between 8AM to PM, Monday through Friday on the west side of S. Fern Street south of 9 th Street S. FINAL TIA //0

19 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG 6/0 0/7 0/ 6/ / 6/ 7/ 7/ 0/ 6/ 6/87 8/ 9/7 9/78 / / / 90/76 /6 0/ 8/6 /7 67/ /7 YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S 6/9 7/8 07/ 9/8 7/0 6/ 0TH S 7/7 /67 7/8 76/ /9 6/9 0TH ST S 9/8 / 9/9 6/8 /7 9/9 ND S ND 0/ /700 /0 / / RD S JCP /6 /0 0/7 Figure - Existing Peak Hour Vehicular Traffic Volumes (07) Crystal House III / 6/ Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH

20 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG 8/7 / 0/ 8/6 8/ 9/6 6/ 96/7 /8 7/6 / 80/0 YES 9TH S 0TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S / 0TH ST S /7 9/ /0 ND S 6/ RD S ND 8/9 /67 JCP Figure -6 Existing Peak Hour Pedestrian Volumes (07) Crystal House III / Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH 6

21 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG 6/ / 0/7 / /0 0/ /0 0/ /9 / / /7 /9 0/ YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S / 0/ 0/ / / 0TH S 0/ /6 0TH ST S / 7/9 0/ ND S ND RD S 0/ /9 /0 /0 6/7 JCP Figure -7 Existing Peak Hour Bicycle Volumes (07) Crystal House III Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH 7

22 Transportation Consultants INNOVATION + SOLUTIONS C:\USERS\JOHN\DOCUMENTS\699A - GRAPHICS - STANDARD\699A - GRAPHICS.DWG S S S S JEFFERSON DAVIS HIGHWAY (ROUTE ) 9TH S 0TH S 0TH S ST S ND S HOUR PAY ON FOOT HOUR PAY ON FOOT METERED PARKING NO RESTRICTION TAXI ZONE A PERMIT, 8A-P, M-FI JCP Figure -8 On-Street Parking Restrictions Crystal House III Arlington County, Virginia NORTH

23 Pipeline Developments One () other approved but unbuilt development, and one () built, but only half occupied development (i.e. pipeline development) are located near the study area. The location of each is shown on Figure Crystal Drive 70 S. Eads Street M. Flats (0% Occupied) The traffic impacts of these projects were taken into account in this TIA. Planned Roadway Improvements The County is planning for the removal of the existing median that currently exists on 8 th Street S. between S. Fern Street and S. Eads Street. The removal of the median will allow for driveways on the north and south side of 8 th Street to turn left into and of out the respective sites. Figure -0 summarizes the future lane use and traffic controls with the removal of the median. For purposes of this TIA this improvement is assumed complete future conditions (00) without and with development. 9 FINAL TIA //0 9

24 Transportation Consultants INNOVATION + SOLUTIONS O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG TH S M. FLATS (0% OCCUPIED) 770 CRYSTAL DRIVE S 9TH S S S S JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S 0TH S ST S ND S RD S JCP Figure -9 Pipeline Development Location Map Crystal House III Arlington County, Virginia NORTH 0

25 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG *MEDIAN REMOVED * STOP * YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S * * 0TH S 0TH ST S ND S RD S ND JCP Figure -0 Future Lane Use and Traffic Controls (00) Crystal House III Arlington County, Virginia STOP * Represents One Travel Lane Signalized Intersection Stop Sign No Turn on Red (7am - 7pm) NORTH

26 SECTION TRANSPORTATION IMPACT ANALYSIS Study Scope Based on the scoping meeting held with Arlington County staff, the Crystal House III TIA includes the five () study intersections listed previously including the two () site access points which provide a direct connection to the proposed building. A copy of the approved scoping agreement is included in Appendix C. For purposes of this TIA, the build-out year was assumed to be 00. Existing Conditions Operational Analysis Existing peak hour levels of service (LOS) were estimated at the study intersections based on the existing lane use and traffic control shown on Figure -, existing traffic signal phasings/timings obtained from Arlington County, the existing vehicular, pedestrian, and bicycle traffic counts shown on Figures - through -6; and the Highway Capacity Manual (HCM) 000 methodologies, using Synchro Software, version 9.. Descriptions of levels of service (LOS) A through F for signalized and unsignalized intersections are included in Appendix D. The results of the existing conditions analysis are presented in AppendixED and summarized in Tables - and -. In addition to the peak hour volumes, the following inputs were coded into Synchro; peak hour factor by approach, CBD area type, lane widths, adjacent parking lane, number parking maneuvers, and bus blockages. Levels of Service. As shown in Table -, the three () signalized study intersections currently operate at acceptable overall LOS C or better during both the AM and PM peak hours. Approaches at the signalized intersections also operate at acceptable levels of service (LOS D or better) during peak periods. At the unsignalized study intersections each approach currently operate at LOS C or better during the AM and PM peak hours. Queues. Existing peak hour queues for study intersection were determined using the 0 th and 9th percentile queues estimated by Synchro Software, version 9.. The 0 th and 9 th percentile queues of existing conditions are used to establish a datum against which to compare future conditions. The 0 th percentile (or average) queue is defined as the maximum back of queue associated with a typical signal cycle. The 9 th percentile queue is defined as the maximum back of queue with 9 th percentile traffic volumes. The 9 th percentile queue is not necessarily ever observed, it is simply based on statistical calculations. The results are presented in Appendix E and summarized in Table -. As shown on Table -, and observed in the field, all queues are adequately accommodated within the available turn-lane storage lanes with the exception of the eastbound left and eastbound right turns on 8 th Street S. at the intersection of S. Eads Street during the AM and PM peak hours, respectively. Synchro Studio 9, Traffic Signal Software User Guide FINAL TIA //0

27 Table Crystal House Phase Intersection Level of Service Summary Existing Conditions (07) Background Conditions (00) Total Future Conditions (00) Control Lane Group Approach AM PM AM PM AM PM Peak Hour Peak Hour Peak Hour Peak Hour Peak Hour Peak Hour LOS Delay LOS Delay LOS Delay LOS Delay LOS Delay LOS Delay. S. Fern Street/8th Street S. Signalized EBL B 0. B 0.0 A 9. A 9.9 A 9. B 0.0 EBT B. B.0 B 0.8 B.0 B 0.9 B. EBR B 0. B. A 9. B. A 9. B. WBL B 0. A 9.0 A 9. A 8.8 A 9. A 8.9 WBT A 9. A 8. A 8.7 A 8.0 A 8.7 A 8. WBR A 9. A 6.0 A 8.7 A.9 A 8.7 A.8 NBLT D 8.0 C.9 D 8.6 C. D 8.7 C. NBR C.9 C. C. C. C. C. SBLT C.6 D.6 C.8 D. C.9 D.6 SBR C. C. C.7 C. C.7 C. Overall B 7.9 B 9. B 7. B 8.8 B 7. B th Street S./Site Driveway Unsignalized EBTR A 0.0 A 0.0 WBTR A 0.0 A 0.0 NBR A 9.7 A 0.0 SBR A 9. B 0. *with removal of median Unsignalized EBLTR A 0.0 A 0.0 A 0.0 A 0.0 WBLTR A 0.6 A 0. A.0 A 0.9 NBLTR C 6.9 C 6. C 6. C 6. SBLTR B 0. B.0 B 0. B.0. S. Eads Street/8th Street S Signalized EBL C.7 B. C 6. B. C 6. B. EBT C 9.6 B 6. C 9.9 B 6.0 C 9.8 B 6. EBR C 6.8 C.8 C 7. C. C 7. C. WBL C 7.0 C.0 C 7.6 C.6 C 7. C.7 WBTR C.0 C.6 C.7 C. C.6 C. NBL A. B.9 A.0 B.6 A. B.8 NBT A 6.9 B.9 A 6. B.8 A 6.8 B.8 NBR A. A 8. A. A 8.7 A. A 8.6 SBL A 7. B 0.8 A 7. B 0.9 A 7. B 0.9 SBTR A 8. C.0 A 7.8 C.9 A 7.9 C 6. Overall B 8. C.8 B 8. C. B 8. C.7. S. Eads Street/0th Street S. Signalized EBLTR C. C. C. C.8 C.9 C.8 /Site Driveway WBLT C.9 D.9 C. D. D. D. WBR C 0. C. C 0. C.6 C 0.8 C. NBL A.0 A.9 A. A.8 A.9 A.0 NBTR B 0. A 6. A 9.9 A.8 A 9. A.8 SBL A.7 A 7. A.6 A 7.0 A. A 7. SBTR A. B. A. B.8 A. B.0 Overall B.9 B.7 B.8 B. B.8 B.. S. Eads Street/nd Street S. Unsignalized EBLTR B.7 C.7 B. C. B. C.6 /Parking Lot Entrance WBLTR B. C 9.8 B.0 C 7.8 B.0 C 8.0 NBL A 8. B.6 A 8. B. A 8. B. NBTR A 0.0 A 0.0 A 0.0 A 0.0 A 0.0 A 0.0 SBL A 8.7 A 0.0 A 8.7 A 0.0 A 8.7 A 0.0 SBTR A 0.0 A 0.0 A 0.0 A 0.0 A 0.0 A 0.0 Notes:. Capacity analysis based on Highway Capacity Manual methodology, using Synchro 9..

28 Table Crystal House Phase Intersection Queue Summary,,, Existing Conditions (07) Background Conditions (00) Total Future Conditions (00) Traffic Lane Storage Control Group Length AM Peak Hour PM Peak Hour AM Peak Hour PM Peak Hour AM Peak Hour PM Peak Hour Queue (in feet) Queue (in feet) Queue (in feet) Queue (in feet) Queue (in feet) Queue (in feet) 0th 9th 0th 9th 0th 9th 0th 9th 0th 9th 0th 9th. S. Fern Street/8th Street S. Signalized EBL EBT EBR WBL m9 0 7 m 0 7 m WBT m 6 m6 7 m6 WBR 90 0 m 0 0 m 0 0 m NBLT NBR SBLT SBR th Street S./Site Driveway Unsignalized EBTR 0 0 WBTL 0 0 NBR 0 SBR *with removal of median Unsignalized EBLTR WBLTR 0 NBLTR 8 7 SBLTR. S. Eads Street/8th Street S Signalized EBL 60 8 m 6 8 m 66 9 m6 EBT m 8 m 0 m EBR WBL WBTR NBL 00 m 88 m 96 m 98 NBT NBR 0 9 m8 8 8 m8 8 9 m9 7 SBL SBTR 9 60 # 9 77 # #76. S. Eads Street/0th Street S. Signalized EBLTR /Site Driveway WBLT WBR NBL NBTR SBL 0 7 m09 0 m0 m0 SBTR # # #6. S. Eads Street/nd Street S. Unsignalized EBLTR /Parking Lot Entrance WBLTR NBL NBTR SBL SBTR Notes:. Capacity analysis based on Highway Capacity Manual methodology, using Synchro 9... m Volume for 9th percentile queue is metered by upstream signal.. ~ Volume exceeds capacity, queue is theoretically infinite.. # 9th percentile volume exceeds capacity, queue may be longer.

29 Pipeline Development Vehicle-Trip Generation Analysis The number of peak hour trips that would be generated by the two () pipeline developments were estimated based on peak hour rates/equations included in the ITE Trip Generation Manual, 9 th Edition and include non-auto mode split estimates based on WMATA s 006 Ridership Survey, proximity to transit and other non-auto modes of transportation in the vicinity. As shown in Table -, it is estimated that these projects would generate a total of 8 AM peak hour trips, 96 PM peak hour trips and, daily trips upon completion and full occupancy. Background Development Trip Distribution Analysis The distribution of peak hour trips that would be generated by the pipeline developments was determined based on previous approved traffic impact studies. The trips generated by the pipeline developments shown in Table - were assigned to the public road network and the resulting traffic assignments are shown on Figure -. The peak hour traffic forecasts for each individual pipeline development are included in Appendix F. Background Traffic Growth As agreed during scoping based on a review of VDOT s published Average Annual Daily Traffic (AADT) along 8 th Street, S. Fern Street, rd Street S., and Route increases in traffic associated with regional growth were estimated at a half (0.) percent per year, compounded annually from 07 to 00, for each of the study intersections. This growth rate accounts for increases in traffic resulting from potential developments not specifically included herein and influences outside of the immediate study area. Increases in traffic as a result of regional growth are shown on Figure -. Trips Associated with Planned 8 th Street S. Improvements Arlington County has plans to remove the existing median on 8 th Street S. between S. Fern and S. Eads Streets. This improvement is assumed complete by project buildout (00). This will allow for full access into and out of the site driveway on 8 th Street S., as well as for the driveway associated with Crystal Towers across the street. TO account for the removal of the median exiting traffic was reassigned to account to for left-in and left-out turning movements that will be permitted in the future. These rerouted trips are shown on Figure -. Future Peak Hour Traffic Forecasts without Development (00) In order to arrive at the future peak hour traffic forecasts without development, summarized on Figure -, the combined peak hour traffic forecasts of the pipeline developments (Figure -), regional growth (Figure -), and rerouted tips associated with the future 8 th Street S. improvements (Figure -) were added to the existing peak hour traffic counts (Figure -). FINAL TIA //0

30 Table Crystal House Phase Pipeline Trip Generation Analysis Land Use AM Peak Hour PM Peak Hour Daily Land Use Code Size Units In Out Total In Out Total Traffic 770 Crystal Drive Retail 80 0,000 SF ,0 0% Non Auto Mode Split (0) (6) (6) () (7) () (608) Total S. Eads Street M Flats (0% Occupied) Mid Rise Apartment /0 99 DU % Non Auto Mode Split (7) (7) () (7) () (9) (9) Total Pipeline Trips , Notes:. Trip generation estiamtes calculatedusing ITE's Trip Generation Manual, 9th Edition.. Land use code 0 was used to calculate Average Daily Traffic.. Based on the site's proximity to Metro and other non auto facilities. 6

31 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG 0/ /7 /7 /7 9/6 /9 / /6 /8 YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S /7 / 0TH S / 0TH ST S / ND S ND RD S / JCP Figure - Pipeline Development Peak Hour Trip Assignments (00) Crystal House III Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH 7

32 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG / 8/6 / 9/7 / /7 / /0 / /0 0/ / 0/ / 0/ / / YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S /0 7/ / / / /0 0TH S /9 / / / 0TH ST S / / ND S ND RD S 0/ / /0 0/ 7/ JCP Figure - Regional Growth (00) Crystal House III Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH 8

33 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG -/- / / -/- -6/-6 -/- / / 6/6 -/- /6 / YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S 0TH S -/- 0TH ST S ND S ND RD S JCP Figure - Reassignment of Existing Traffic with 8th Street South median removed Crystal House III Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH 9

34 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG 6/0 /86 /9 6/9 / 6/ 7/6 7/ 0/ / / 6/9 9/ 90/ 6/7 6/ / / 7/6 00/9 /6 0/ /8 /6 /8 7/69 /7 YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S 66/9 7/7 09/ /88 /09 6/ 0TH S / 7/66 7/8 78/6 /9 66/9 0TH ST S 9/8 / 9/9 6/8 9/ 6/0 ND S ND 0/ 9/7 /0 / / RD S JCP /6 /0 0/7 Figure - Future Peak Hour Traffic Forecasts without Development (00) Crystal House III / 6/9 Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH 0

35 Operational Analysis of Future Conditions without Development (00) Future peak hour levels of service without the development of Crystal House III were estimated at the study intersections based on the future lane use and traffic control shown on Figure -0; the future traffic forecasts without development shown on Figure -; and the HCM 000 methodologies, using Synchro Software, version 9.. The results are presented in Appendix G and summarized in Tables - and -. Levels of Service. As shown in Table -, with the addition of the two () pipeline developments, regional growth and rerouted trips associated with roadway improvements, the signalized study intersections would continue to operate at acceptable overall LOS C or better during both the AM and PM peak hours, consistent with existing conditions. Each approach at the signalized intersections would also continue to operate at acceptable levels of service during peak periods. Additionally, approaches at the unsignalized study intersections would continue to operate at acceptable levels of service during the AM and PM peak hours. Queues. As shown in Table - with the addition of the pipeline developments, regional growth and the rerouted trips associated with roadway improvements would result in nominal increases in the estimated 0 th and 9 th percentile queues. Peak hour queues would continue to be adequately accommodated, within the available turn lane storages with the exception of eastbound left and right turn lanes on 8 th Street S. at S. Eads Street, consistent with existing conditions. FINAL TIA //0

36 Site Vehicle-Trip Generation Analysis The number of vehicle-trips that would be generated by the proposed Crystal House III development were estimated based on rates/equations included in the ITE Trip Generation Manual, 9th Edition. As agreed to during the scoping process, a 60% non-auto reduction was used assumed based on the site s proximity to the Crystal City Metrorail Station and other non-auto facilities in the vicinity of the site. As shown in Table -, the proposed development is estimated to generate 6 AM peak hour trips, PM peak hour trips and 660 daily trips. Site Access Access to the proposed Crystal House III will use the existing access points to Crystal House I and II. Based on the orientation of the building on the site direct access to the proposed building and the parking garage would be provided via the driveway on 8 th Street S. and the full access, signalized intersection at S. Eads Street/0 th Street S. Access to the below grade parking is provided along the buildings northwest façade. As mentioned previously, 8 th Street S. will be redesigned and the existing roadway median will be removed. This will allow for driveway on 8 th Street S. to become a full access driveway in the future. Parking/Loading Vehicle Parking. The Arlington County vehicle parking ratios for the proposed residential use is. spaces per dwelling unit for the first 00 dwelling units plus one () space for each additional dwelling unit. This equates to 77 parking spaces for the proposed Crystal House III development. Currently, the site is subject to an approved Site Plan requiring an overall minimum parking ratio of.0 spaces per unit. According to the most recent site plan amendment application submission, the Applicant proposes to construct a 8 space parking garage under the proposed Crystal House III building as well as to provide a total of 609 parking spaces elsewhere on site, including 7 surface parking spaces, 8 covered parking spaces, and structured parking spaces (8 in Crystal House I and 0 in Crystal House II) for a combined total of,07 parking spaces on the Crystal Houses Block. The,07 proposed parking spaces on the Crystal Houses Block would result in a parking ratio of 0.9 spaces per unit for the Crystal Houses Block, and an overall parking ratio of 0.98 spaces per unit for the entire Site Plan. FINAL TIA //0

37 Table Crystal House Phase Site Trip Generation Analysis Land Use AM Peak Hour PM Peak Hour Daily Land Use Code Size Units In Out Total In Out Total Traffic Approved Mid Rise Apartment /0 DU ,6 60% Non Auto Mode Split (7) (7) () (8) (8) (66) (99) Total Total Proposed Trips Notes:. Trip generation estiamtes calculatedusing ITE's Trip Generation Manual, 9th Edition.. Land use code 0 was used to calculate Average Daily Traffic.. Based on the site's proximity to Metro and other non auto facilities.

38 Bicycle Parking. The standard Arlington County bicycle parking ratios are as follows: Residential Uses (Long-Term Secure Parking (Class I)) o One () bicycle parking space per every. dwelling units for residents o One () bicycle parking space per every 0 dwelling units for visitors Based on these parking ratio requirements, a total of 07 bicycle parking spaces would be required for the proposed Crystal House III. The proposed development will meet the bicycle parking requirements. Loading Area. The standard Arlington County off-street loading requirements are as follows: Multi-family residential uses: o One space for each 00 units, when over 0 units According to the site plan, the Applicant proposes one () loading bay to serve the proposed Crystal House III. Site Trip Distribution Analysis The distribution of peak hour trips generated by the proposed Crystal House III development were determined based on existing traffic counts, road network, previously approved traffic impact studies, and local knowledge. The distributions were ultimately agreed to with County staff during the scoping process and are summarized below. To/from the north on S. Eads Street 0% To/from the south on S. Eads Street % To/from the north on S. Fern Street 6% To/from the south on S. Fern Street 7% To/from the east on 8 th Street S. % To/from the west on 8 th Street S. 0% To/from the east on 0 th Street S. 7% Total 00% The peak hour trips summarized in Table - were assigned to the road network based on the above distributions and are shown on Figure -. Future Peak Hour Traffic Forecasts with Development (00) The future peak hour traffic forecasts are presented on Figure -6 and are comprised of the peak hour traffic generated by the proposed development (Figure -) and the future peak hour traffic forecasts without development (Figure -). FINAL TIA //0

39 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG / /9 / / / / 8/6 8/ / / / /8 / YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S / / / 0TH S / / 0TH ST S / / 6/ /7 ND S ND RD S 6/ /7 JCP Figure - Crystal House III Peak Hour Trip Assignments Crystal House III Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH

40 O:\PROJECTS\ \699 CRYSTAL HOUSE PHASE \GRAPHICS\699A - GRAPHICS.DWG 6/0 /9 /9 6/9 9/ 6/ 7/6 8/ 0/ / /7 6/9 9/ 90/ 6/7 7/6 9/7 /0 8/66 0/98 7/6 0/ /8 8/ /8 76/7 /7 YES 9TH S S TH Transportation Consultants S S INNOVATION + SOLUTIONS JEFFERSON DAVIS HIGHWAY (ROUTE ) 0TH S 70/ /0 09/ /88 /0 6/ 0TH S / 7/66 7/8 78/6 /0 66/9 0TH ST S 0/9 / / 8/ 9/ 6/0 ND S ND 0/ 6/76 /0 / / RD S JCP /6 /0 0/7 Figure -6 Future Peak Hour Traffic Forecasts with Development (00) Crystal House III / 66/6 Arlington County, Virginia AM PEAK HOUR PM PEAK HOUR 000 / 000 NORTH 6

41 Operational Analysis of Future Conditions with Development (00) Future peak hour levels of service with the proposed Crystal House III development in year 00 were estimated at the study intersections based on the future lane use and traffic controls shown on Figure -0; the future traffic forecasts with development shown on Figure -6; and the HCM 000 methodologies, using Synchro Software, version 9.. The results are presented in Appendix H and summarized in Tables - and -. Levels of Service. As shown in Table -, with proposed development all intersections would continue to operate at acceptable overall LOS C or better during both the AM and PM peak hours consistent with existing and future conditions without development. Each approach at the signalized intersections would also continue to operate at acceptable levels of service during peak periods. Consistent with existing and future conditions without development, approaches at the unsignalized study intersections would continue to operate at acceptable levels of service during the AM and PM peak hours. When compared to future conditions without development the proposed development would result in less than a one () second increase in the overall average delay per vehicle at the signalized study intersections. Thus, the proposed impact of the development on the surround network would be unnoticeable. Queues. As shown in Table - with the addition of the proposed development the projected 0 th and 9 th percentile queues would remain generally consistent to future conditions without development. When compared to future conditions without development estimate per hour queuing would increase by one () vehicle or less. 7 FINAL TIA //0 7

42 SECTION CONCLUSIONS The principal findings of this traffic impact analysis are as follows:. The development of Crystal House III would have a negligible impact on the adjacent street network and operations at adjacent study intersections.. The subject site is located within a connected network of arterial and local streets, with sidewalks and on-street bike routes, and is located approximately 700 feet from Crystal City Metrorail Station.. The three () signalized study intersections currently operate at acceptable overall LOS C or better during both the AM and PM peak hours. Each approach at the signalized intersections also operate at acceptable levels of service (LOS D or better) during peak periods. At the unsignalized study intersections each approach currently operates at LOS C or better during the AM and PM peak hours.. Two () pipeline developments are estimated to generate a total of 8 AM peak hour trips, 96 PM peak hour trips and, daily trips upon full occupancy.. In the future without redevelopment and the addition of the pipeline developments, regional growth, and the planned roadway improvements on 8 th Street S., the signalized study intersections would continue to operate at acceptable overall LOS C or better during both the AM and PM peak hours, consistent with existing conditions. Each approach at the signalized intersections would also continue to operate at acceptable levels of service during peak periods. 6. The Crystal House III project is estimated to generate 6 AM peak hour trips, PM peak hour trips, and 660 daily trips. This assumes a 60% non-auto reduction based on the site s proximity to the Crystal City Metrorail Station and other non-auto facilities available in the vicinity of the site. 7. In the future with the addition of Crystal House III, all signalized study intersections would continue to operate at acceptable overall LOS C or better during both the AM and PM peak hours, consistent with existing and future conditions without development. Each approach at the signalized intersections would also continue to operate at acceptable levels of service during peak periods. When compared to future conditions without development the proposed development would result in less than a one () second increase in the overall average delay per vehicle at the signalized study intersections. 8. The proposed Crystal House III Transportation Management Plan (TMP) will reinforce the expected vehicle trip reductions given the projects location to transit, bicycle, and walking facilities which minimize the project s vehicular traffic impacts. O:\Projects\ \699 Crystal House Phase \Documents\Reports\Crystal House III - TIA (W+A..7).docx 8 FINAL TIA //0 8