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Home My WebLink AboutApplication Files_82693_pg0368 6: Chapel Rd & Route 30 HCM Signalized Intersection Capacity Analysis 2010 Existing Weekday AM Peak Hour ' Lane Configurations ` Ideal`171 vvl�(vphpl) `1900 1000 1900 1900 1000- 1600 1900 1900 1900- 1900 1906 1900 Lane Width 11 11 12 11 11 12 11 11 12 12 11 11 ' Total Lost time(s) 4.0 4.0 4.0 4.0 4.0 1" 4.0 4.0 4.0 Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 too Frt_ 100 0.94 1.00 0.97 1.00 0.98 1.00` 0.85 Flt Protected 0.95 1.00 0.95 1.00 0.95 1.00 1.00 1.00 Satd. Flow(prot),. -1 662 1�662 '1678 "1716 1601 1658 1796` 1531 Flt Permitted 0.67 1.00 0.70 1.00 0.51 1.00 0.99 1.00 Satd.;Elow(perm)' ` 1178 1652` 1229 1716 859 <_1658 1779, 1531 Volume(vph) 40 50 30 55 85 20 10 80 10 15 275 270 Peak=hour factor, PHF 0.85 0,85 0.85 0.86' 0.86 0.86 0.88 0.88 '0.88 OM '0.93_ 0.93 Adj. Flow(vph) 47 59 35 64 99 23 11 91 11 16 296 290 RTOR Reduction (vph) 0 22 0 0I'll 8 '' 0 0 3 a 0 0 148 I Lane Group Flow(vph) 47 72 0 64 114 0 11 99 0 0 312 142 Heavy Vehicles.(%):_ 5°/a '6% -:5% ':4% 4% 4% •�9%0 9%d 9% 2% 2% 2%v, Turn Type pm+pt Perm pm+pt Perm Perm ' Protected Phases 3 4 4 1 2_ 2 Permitted Phases 4 4 2 2 2 Actuated Green,"G (s) 18.5 15.8 15.8 15.8 < 37.1 36.1 36.1 Effective Green, g (s) 20.5 16.8 16.8 16.8 37.1 36.1 36.1 36.1 Actuated,, Ratio 0.28 0.23 0.23 0.23 0.50 0.49 0.49 , 0.49 Clearance Time(s) 5.0 5.0 5.0 5.0 4.0 4.0 4.0 1 4.0 Vehicle Extension (s) 2.0 3.0 3.0 3.0 2.0, 6.0 6.0 6.0 Lane Grp Cap(vph) 352 377 281 392 443 813 873 751 vls'Ratio Prot c0'01 0.�4 - �c0.07 cobo 0.06, _. v/s Ratio Perm 0.03 0.05 0.01 c0.18 0.09 v/c Ratio 0.13 0;19 0.23 0.29 0.02 0.12 0.36 0.19 Uniform Delay,dl 19.7 22:9 23.1 23.5 9.2 10.2 11.6 10.5 Progression Factor 1,00 1.00 1 m 1 v00 1.®0 1.001. 1.00 1.00 Incremental Delay, d2 0.1 0.2 0.4 0.4 0.0 0.2 0.7 0.3 ' 0e16y(s) 19.8 23.2 23.5 23-.9 9.2 16.3 12.3 10.9 Level of Service B C C C A B B B Approach0elay.(s) 22.0 238 10.2 11.6 Approach LOS C C B B ' w Te HCM Average Control Delay 15.0 HCM Level of Service B HCM Volume to,Capacity ratio-'. .: 0.32 .�: ' Actuated Cycle Length (s) 73 6 Sum of lost time(s) 16.0 Intersection Capacit Utilization :, 542/o, ICU Level of Service Analysis Period (min) 15 ' c z Critical Lane Groff -- . .. ...� J:\72189.10\tech\Traffic\synchro\2010 EX-AM.sy7 Synchro 6 Report VHB, Inc. '