at 2 Foot (0.6 m) Point Begin Mainline Shoulder 1:25 Paved Shoulder Transition S.T. or P.T. 250 ft (75 m) shoulder width Paved ramp 16 ft (4.

Transcription

1 CSE I egi ailie Shulder at 2 Ft (0.6 ) it CSE I: Tw ra laes erge t e lae ra rer. Csider use tw lae ras whe a tw lae erge is t required t btai a desired level f service. 0 aved gre t 22 ft (6.6 ) width S.T. r.t. aved ra shulder width 16 ft (4.8 ) 1:25 aved Shulder Trasiti See GE-100-Series r GE-101-Series 250 ft (75 ) Calculati fr Trasiti Legth "L" (V = Desig Seed) Eglish (L i Ft ad V i H): L ft = (12)(V H) fr V 45 H 2 V L = fr V 40 H 5 etric (L i ad V i k/hr): L = (2.25)(V) fr V 70 k/hr 2 V L = fr V 65 k/hr 43 te: Trasiti t e lae shuld be csistetly the L 24 ft (7.2 ) left r the right withi the iterchage, if feasible. T T SCLE GEETRIC DESIG GUIDE FR ichiga Deartet f Trasrtati TRFFIC D SFETY Y: EGIEER F DELIVERY TW LE DRW Y: LS/ECH Y: ETRCE R CHECKED Y: JT/IRG EGIEER F DEVELET 09/06/2007 SHEET FILE: W/RD/TS/Ge D/dt GE110C EC.dg REV. 09/06/2007 L DTE: GE-110-C 1 F 6

2 (45 ) 780 ft (240 ) (1:65 taer) egi ailie Shulder at it 1170 ft (355 ) (1:65 taer) CSE II 150 ft CSE II: utside ra lae is taered away. Iside ra lae is added, csider use 2 lae ras t achieve a desired level f service. If a additial lae dr is required, the added lae ay be dred after 0.5 ile (800 eters). ailie Desig Seed = 75 H (120 K/hr) 24 ft (7.2 ) aved ra shulder width 1:25 aved Shulder Trasiti S.T. r.t. 30 ft (9 ) 24 ft (7.2 ) Whe trasiti siral is used, reduce the 1170 feet (355 eters) by half f the trasiti siral legth. The 30 ft aved gre t 22 ft (6.6) width (9 eter) lateral ffset distace shuld be recalculated. T T SCLE ICHIG DERTET F TRSRTTI TRFFIC D SFETY GEETRIC DESIG GUIDE FILE: W/RD/TS/Ge D/dt GE110C EC.dg REV. 09/06/2007 GE-110-C L DTE: 2 F 6

3 egi ailie Shulderat 2 Ft (0.6 ) it CSE III CSE III: utside ra lae is dred after a arallel secti. Iside ra lae is 12 ft (3.6 ) 150 ft (45 ) 2000 ft (600 ) iiu 900 ft (270 ) 24 ft (7.2 ) aved ra shulder width (1:75 taer) easured arallel t ailie added. Csider use tw lae ras whe the desired level f service is t et by Case II. If a additial lae dr is required, the added lae ay be dred after 0.5 iles (800 eters). ailie Desig Seed = 75 H (120 K/hr) 1:25 aved Shulder Trasiti 390 ft (117 ) (1:65 taer) S.T. r.t. 30 ft (9 ) aved gre t 22 ft (6.6 ) width 24 ft (7.2 ) Whe trasiti siral is used, reduce the 390 feet (117 eters) by half f the trasiti siral legth. The 30 ft (9 eter) lateral ffset distace shuld be recalculated. T T SCLE ICHIG DERTET F TRSRTTI TRFFIC D SFETY GEETRIC DESIG GUIDE FILE: W/RD/TS/Ge D/dt GE110C EC.dg REV. 09/06/2007 GE-110-C L DTE: 3 F 6

4 (1:55 taer) CSE IV TCH LIE CSE IV: Tw lae etrace with freeway laes icreased by e after gre. utside ra lae is dred after a arallel secti. Ra lae is added. ailie Desig seed = 60 h (100 k/hr) S S LIE 6 ft (1.8 ) 2 ft (0.6 ) egi Trasiti Fr Tye D Curb if Used Ra.T., S.T. r Taget 330 ft (100 ) 12 ft (3.6 ) 300 ft (90 ) ailie 60 H (100 k/hr) Freeway Desig Seed ercet Grade f Thrugh Radway S i Feet (eters) -3 t less tha (115) etwee -3 ad (185) +3 t less tha (340) 24 ft (7.2 ) 1:25 Shulder Trasiti aved ra shulder width TCH aved gre t 22 ft (6.6 ) width T T SCLE ICHIG DERTET F TRSRTTI TRFFIC D SFETY GEETRIC DESIG GUIDE FILE: W/RD/TS/Ge D/dt GE110C EC.dg REV. 09/06/2007 GE-110-C L DTE: 4 F 6

5 EDGE F VEET ELEVTI RELTISHIS WHE THE THRU LES RE T SUERELEVTED WHE THE THRU LES RE SUERELEVTED D IS LWER TH WHE THE THRU LES RE SUERELEVTED D IS HIGHER TH R D THRU LE R D THRU LE SUERELEVTED I SE SUERELEVTED I DIRECTI SITE DIRECTI SECTI - ITS, & SHULD E RGRESSIVELY LWER. ITS,, & SHULD E RGRESSIVELY LWER. IT SHULD E HIGHER TH IT. IT SHULD E EQUL T R LWER TH IT. SECTI - ITS, & SHULD E I THE SE LE. ITS,, & SHULD E I THE SE LE. ITS,, & SHULD E I THE SE LE. ITS,, & SHULD E I THE SE LE. TE: axiu algebraic differece i aveet crss sle betwee ailie ad ra auxiliary lae shuld t exceed 5%. T T SCLE ICHIG DERTET F TRSRTTI TRFFIC D SFETY GEETRIC DESIG GUIDE FILE: W/RD/TS/Ge D/dt GE110C EC.dg REV. 09/06/2007 GE-110-C L DTE: 5 F 6

6 TES: 1. Select desig seed based cbiati f the suerelevati rate ad the radius f the curve. See chater 3 f the DT Rad Desig aual. 2. If the thrugh aveet is curved, lt ffsets fr the taer ad cect with the arriate curve. 3. reare detail grades ad rfiles fr Secti - t Secti - t assure rer draiage. 4. Siral trasitis shuld be used ew ra aligets, based the desig seed f the curve ad the radius as shw i the table f the Rad Stadard la R-107-Series. The table gives axiu radius i which a siral shuld be used. 5. The axiu algebraic differece i aveet crss sle betwee the ailie ad the ra auxiliary lae shuld t exceed 5%. 6. The crss sle i the gre area betwee the it ad the 22 ft (6.6 ) it shuld t exceed 8%, with a 6% axiu algebraic differece i crss sle betwee the gre ad the adjacet lae. This algebraic differece als alies withi crwed gres. 7. The desig seed f the ra vertical aliget shuld eet r exceed the desig seed f the ra hriztal aliget. 8. The ailie shulder width shuld exted alg the ra t where the gre is 2 ft (0.6 ) wide. Use a 1:25 taer trasiti where it jis the ra shulder avig. 9. Each ra shuld be carefully studied t rvide axiu visi at its erge its. See Geetric Desig Guide GE-300-Series. 10. Tw lae ras shuld be 24 ft (7.2 ) iiu edge t edge. Radii less tha 500 ft (150 ) ay require wideig, csult the Geetric Desig Uit f Lasig Traffic ad Safety. 11. The lgitudial jit a 24 ft (7.2) ra aveet shall be lcated 12 feet (3.6) fr the right edge f the aveet ad eded where the ra width beces 16 feet (4.8). 12. These desig ccets are fr ew cstructi. Where dificati ay be eeded fr retrfittig t existig rad features, csult the Geetric Desig Uit f Lasig Traffic ad Safety. T T SCLE ICHIG DERTET F TRSRTTI TRFFIC D SFETY GEETRIC DESIG GUIDE FILE: W/RD/TS/Ge D/dt GE110C EC.dg REV. 09/06/2007 GE-110-C L DTE: 6 F 6