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Appendix D Traffic Impact Analysis - westplainseis.com

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HCM Unsignalized Intersection Capacity <strong>Analysis</strong><br />

10: SR-902 & Craig 2/14/2011<br />

Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR<br />

Lane Configurations<br />

Volume (veh/h) 85 346 11 17 346 102 6 122 6 130 164 227<br />

Sign Control Free Free Stop Stop<br />

Grade 0% 0% 0% 0%<br />

Peak Hour Factor 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90<br />

Hourly flow rate (vph) 94 384 12 19 384 113 7 136 7 144 182 252<br />

Pedestrians<br />

Lane Width (ft)<br />

Walking Speed (ft/s)<br />

Percent Blockage<br />

Right turn flare (veh)<br />

Median type None None<br />

Median storage veh)<br />

Upstream signal (ft)<br />

pX, platoon unblocked<br />

vC, conflicting volume 498 397 1345 1115 391 1127 1064 441<br />

vC1, stage 1 conf vol<br />

vC2, stage 2 conf vol<br />

vCu, unblocked vol 498 397 1345 1115 391 1127 1064 441<br />

tC, single (s) 4.1 4.1 7.1 6.5 6.2 7.1 6.5 6.2<br />

tC, 2 stage (s)<br />

tF (s) 2.2 2.2 3.5 4.0 3.3 3.5 4.0 3.3<br />

p0 queue free % 91 98 56 27 99 0 9 59<br />

cM capacity (veh/h) 1071 1173 15 187 658 69 201 618<br />

Direction, Lane # EB 1 EB 2 WB 1 WB 2 NB 1 SB 1<br />

Volume Total 94 397 19 498 149 579<br />

Volume Left 94 0 19 0 7 144<br />

Volume Right 0 12 0 113 7 252<br />

cSH 1071 1700 1173 1700 127 170<br />

Volume to Capacity 0.09 0.23 0.02 0.29 1.18 3.41<br />

Queue Length 95th (ft) 7 0 1 0 225 Err<br />

Control Delay (s) 8.7 0.0 8.1 0.0 202.2 Err<br />

Lane LOS A A F F<br />

Approach Delay (s) 1.7 0.3 202.2 Err<br />

Approach LOS F F<br />

Intersection Summary<br />

Average Delay 3353.0<br />

Intersection Capacity Utilization 85.7% ICU Level of Service E<br />

<strong>Analysis</strong> Period (min) 15<br />

West Plains Development <strong>Traffic</strong> <strong>Impact</strong> <strong>Analysis</strong><br />

Synchro 7 - Report<br />

2032 Alternative 2 Buildout Page 10

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