page P 



CHELSEA STREET AT WARREN STREET 



1991 PH PEAK HOUR WITH TUDOR WHARF (H/ HARINA PARCEL) 



dite:05-E5-198S tiiie:09:32:2E 



SATURATION FLOW ADJUSTMENT WORKSHEET 



DIR LN GROUP IDEAL N Ft*id Fhv Fgr Fpark Fbus Farea Frt Fit s 



EB LT 1800 1 1.000 0.976 1.005 1.000 1.000 0.900 1.000 0.950 1509 



EB TH-RT IBOO £ 1 .000 0.976 1.005 1.000 l.OOO 0.900 0.98i( 1.000 31S7 



WB LT 1800 1 1.000 0.976 0.995 1.000 1.000 0.900 1.000 0.353 556 



UB TH-RT IBOO 3 1.000 0.976 0.995 1.000 1.000 0.900 0.973 1.000 11591 



NB LT-TH-RT 1300 1 1.000 0.995 0.990 1.000 1.000 0.900 0.890 0.836 1189 



SB LT-TH-RT 1800 1 1.000 0.995 0.930 1.000 1.000 0.900 0.871 0.B31 U^iS 



SUPPLEMENTAL WORKSHEET FOR LEFT-TURN ADJUSTMENT FACTOR FLT 



INPUT VARIABLES 



DIR C G N Va V« Vlt Pit No Vo Flto 



WB 85 41 1 IS 1399 IE 1.00 2 754 0.00 



NB 85 E6 1 360 83 S77 0.77 1 78 0.75 



SB 85 E6 1 311 73 233 0.75 1 83 0,77 



CALCULATIONS 



DIR Sop Yo Gu Fs PI Gq Pt Gf El Fi Fit 



WB 3600 O.EIO SB. 811 O.m 1.000 11.773 0.000 0.000 S.787 0.353 0.353 



NB 1411 0.055 EE.455 0.BS6 0.769 3.447 0.E31 0.554 1.361 0.836 0.836 



SB 1409 C. 059 EE. 186 0.BS3 0.750 3.716 0.S50 0.616 1.367 0.8310.831 



CAPACITY ANALYSIS WORKSHEET 



DIR LN GROUP v s v/s g/C c v/c CRITICAL 



EB LT S33 1509 0.11 0.11 S44 0.96 ♦ 



EB TH-RT 978 3IE7 0.31 0.59 1843 0.53 



«B LT IE 556 O.OE 0.48 E65 0.05 



WB TH-RT 2114 4591 0.46 0.4B E19S 0.96 » 



NB LT-TH-RT 360 1189 0.30 0.30 362 0.99 « 



SB LT-TH-RT 311 1143 0.27 0.30 348 0.89 



CYCLE= 85.0 LOST= 9.0 SUM V/S CRIT= 0.87 TOTAL V/C= 0.97 

 FOR THE EASTBOUND PROTECTED/PERMISSIVE LEFT TURN LANE THE CAPACITY, V/S AND V/C 

 RATIOS HAVE ALL BEEN ADJUSTED TO REFLECT A CAPACITY FOR 

 75 LEFT TURNS ON THE CHANGE INTERVAL AND ON THE PERMISSIVE PHASE 



LEVEL OF SERVICE WORKSHEET 



DIR Delay LOS 



E6 14.43 B 



WB El. 45 C 



NB 48. 6E E 



SB 3E.59 D 



INTERSECTION DELAY = SE.63 INTERSECTION LOS=C 



THE CYCLE LENGTH WITHIN THE BOUNDS OF 60 TO ISO SECONDS 

 WHICH MINIMIZES CRITICAL MOVEMENT DELAY IS 67.0 SECONDS 



FOR A V/C RATIO OF .95 THE CYCLE SHOULD BE 107.6 SECONDS 

 for chosen cycle length 87.0 



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