Appendix D Traffic Impact Analysis - westplainseis.com

HCM Unsignalized Intersection Capacity Analysis
12: 6th Ave & Craig Road 1/18/2011
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
Volume (veh/h) 30 0 122 41 0 89
Sign Control Stop Free Free
Grade 0% 0% 0%
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92
Hourly flow rate (vph) 33 0 133 45 0 97
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type None None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume 252 155 177
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol 252 155 177
tC, single (s) 6.4 6.2 4.1
tC, 2 stage (s)
tF (s) 3.5 3.3 2.2
p0 queue free % 96 100 100
cM capacity (veh/h) 737 891 1399
Direction, Lane # WB 1 WB 2 NB 1 SB 1
Volume Total 33 0 177 97
Volume Left 33 0 0 0
Volume Right 0 0 45 0
cSH 737 1700 1700 1399
Volume to Capacity 0.04 0.00 0.10 0.00
Queue Length 95th (ft) 3 0 0 0
Control Delay (s) 10.1 0.0 0.0 0.0
Lane LOS B A
Approach Delay (s) 10.1 0.0 0.0
Approach LOS
B
Intersection Summary
Average Delay 1.1
Intersection Capacity Utilization 18.9% ICU Level of Service A
Analysis Period (min) 15
2012 PM Peak Hour Background Conditions Synchro 7 - Report
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