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Appendix D Traffic Impact Analysis - westplainseis.com

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

1: Hwy. 2 & Craig Road 1/18/2011<br />

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

Lane Configurations<br />

Volume (veh/h) 285 1286 87 90 1103 360 36 2 75 257 2 210<br />

Sign Control Free Free Stop Stop<br />

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

Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93<br />

Hourly flow rate (vph) 306 1383 94 97 1186 387 39 2 81 276 2 226<br />

Pedestrians<br />

Lane Width (ft)<br />

Walking Speed (ft/s)<br />

Percent Blockage<br />

Right turn flare (veh)<br />

Median type TWLTL TWLTL<br />

Median storage veh) 2 2<br />

Upstream signal (ft)<br />

pX, platoon unblocked<br />

vC, conflicting volume 1573 1476 3009 3762 691 2959 3662 787<br />

vC1, stage 1 conf vol 1996 1996 1573 1573<br />

vC2, stage 2 conf vol 1013 1767 1386 2089<br />

vCu, unblocked vol 1573 1476 3009 3762 691 2959 3662 787<br />

tC, single (s) 4.1 4.1 7.5 6.5 6.9 7.5 6.5 6.9<br />

tC, 2 stage (s) 6.5 5.5 6.5 5.5<br />

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

p0 queue free % 27 79 0 0 79 0 0 33<br />

cM capacity (veh/h) 420 457 0 1 389 0 1 337<br />

Direction, Lane # EB 1 EB 2 EB 3 EB 4 WB 1 WB 2 WB 3 NB 1 SB 1<br />

Volume Total 306 691 691 94 97 791 782 122 504<br />

Volume Left 306 0 0 0 97 0 0 39 276<br />

Volume Right 0 0 0 94 0 0 387 81 226<br />

cSH 420 1700 1700 1700 457 1700 1700 0 0<br />

Volume to Capacity 0.73 0.41 0.41 0.06 0.21 0.47 0.46 Err Err<br />

Queue Length 95th (ft) 144 0 0 0 20 0 0 Err Err<br />

Control Delay (s) 33.5 0.0 0.0 0.0 15.0 0.0 0.0 Err Err<br />

Lane LOS D B F F<br />

Approach Delay (s) 5.8 0.9 Err Err<br />

Approach LOS F F<br />

Intersection Summary<br />

Average Delay<br />

Err<br />

Intersection Capacity Utilization 101.7% ICU Level of Service G<br />

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

2019 PM Peak Hour Background Conditions Synchro 7 - Report<br />

cak Page 1

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