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) 146 0 377 199 0 282
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) 159 0 410 216 0 307
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 824 518 626
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol 824 518 626
tC, single (s) 6.4 6.2 4.1
tC, 2 stage (s)
tF (s) 3.5 3.3 2.2
p0 queue free % 54 100 100
cM capacity (veh/h) 343 558 956
Direction, Lane # WB 1 WB 2 NB 1 SB 1
Volume Total 159 0 626 307
Volume Left 159 0 0 0
Volume Right 0 0 216 0
cSH 343 1700 1700 956
Volume to Capacity 0.46 0.00 0.37 0.00
Queue Length 95th (ft) 59 0 0 0
Control Delay (s) 24.3 0.0 0.0 0.0
Lane LOS C A
Approach Delay (s) 24.3 0.0 0.0
Approach LOS
C
Intersection Summary
Average Delay 3.5
Intersection Capacity Utilization 46.7% ICU Level of Service A
Analysis Period (min) 15
2019 PM Peak Hour Background Conditions Synchro 7 - Report
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