Appendix D Traffic Impact Analysis - westplainseis.com

HCM Unsignalized Intersection Capacity Analysis
2: Hwy. 2 & Lundstrom St. 2/10/2011
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Volume (veh/h) 46 2604 36 23 2463 40 18 4 26 16 5 32
Sign Control Free Free Stop Stop
Grade 0% 0% 0% 0%
Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97
Hourly flow rate (vph) 47 2685 37 24 2539 41 19 4 27 16 5 33
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type TWLTL None
Median storage veh) 2
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume 2580 2722 4151 5426 1361 4073 5424 1290
vC1, stage 1 conf vol 2798 2798 2607 2607
vC2, stage 2 conf vol 1353 2628 1466 2816
vCu, unblocked vol 2580 2722 4151 5426 1361 4073 5424 1290
tC, single (s) 4.1 4.1 7.5 6.5 6.9 7.5 6.5 6.9
tC, 2 stage (s) 6.5 5.5 6.5 5.5
tF (s) 2.2 2.2 3.5 4.0 3.3 3.5 4.0 3.3
p0 queue free % 72 84 0 0 81 9 0 79
cM capacity (veh/h) 167 149 13 0 141 18 5 157
Direction, Lane # EB 1 EB 2 EB 3 WB 1 WB 2 WB 3 NB 1 SB 1
Volume Total 47 1790 932 24 1693 888 49 55
Volume Left 47 0 0 24 0 0 19 16
Volume Right 0 0 37 0 0 41 27 33
cSH 167 1700 1700 149 1700 1700 2 24
Volume to Capacity 0.28 1.05 0.55 0.16 1.00 0.52 24.32 2.23
Queue Length 95th (ft) 28 0 0 14 0 0 Err 170
Control Delay (s) 35.0 0.0 0.0 33.7 0.0 0.0 Err 903.7
Lane LOS D D F F
Approach Delay (s) 0.6 0.3 Err 903.7
Approach LOS F F
Intersection Summary
Average Delay 99.8
Intersection Capacity Utilization 83.8% ICU Level of Service E
Analysis Period (min) 15
West Plains Development Traffic Impact Analysis
Synchro 7 - Report
2032 Alternative 1 Buildout Page 2