Appendix D Traffic Impact Analysis - westplainseis.com

MOVEMENT SUMMARY
Middle Dwy./Hwy. (YEAR 2012 PM PEAK, ALT.3,Buildout)
West Plains Development
Roundabout
Site: Roundabout
Movement Performance - Vehicles
Mov ID Turn
Demand
Deg. Average Level of 95% Back of Queue Prop. Effective Average
Flow HV Satn Delay Service Vehicles Distance Queued Stop Rate Speed
veh/h % v/c sec veh ft per veh mph
East: Hwy. 2
6T T 1053 1.0 0.534 4.5 LOS A 4.8 121.4 0.65 0.51 28.9
6R R 378 1.0 0.236 4.3 NA 9 NA 9 NA 9 NA 9 0.41 31.4
Approach 1432 1.0 0.535 4.5 LOS A 4.8 121.4 0.48 0.48 29.6
North: Middle Dwy.
7L L 634 1.0 0.554 17.0 LOS B 4.1 104.6 0.81 1.02 24.7
4R R 128 1.0 0.080 4.3 NA 9 NA 9 NA 9 NA 9 0.41 31.4
Approach 762 1.0 0.554 14.9 LOS B 4.1 104.6 0.68 0.91 25.6
West: Hwy. 2
5L L 289 1.0 0.444 13.8 LOS B 2.7 68.1 0.65 0.91 26.2
2T T 1199 1.0 0.724 8.2 LOS A 6.9 173.8 0.80 0.91 28.4
Approach 1488 1.0 0.724 9.3 LOS B 6.9 173.8 0.77 0.91 27.9
All Vehicles 3682 1.0 0.724 8.6 LOS A 6.9 173.8 0.64 0.74 27.9
Level of Service (Aver. Int. Delay): LOS A. Based on average delay for all vehicle movements. LOS Method: Delay (HCM).
Level of Service (Worst Movement): LOS B. LOS Method for individual vehicle movements: Delay (HCM).
Approach LOS values are based on the worst delay for any vehicle movement.
Roundabout LOS Method: Same as Signalised Intersections.
Roundabout Capacity Model: SIDRA Standard.
9 Continuous movement
Processed: Wednesday, February 09, 2011 11:31:07 AM Copyright © 2000-2010 Akcelik & Associates Pty Ltd
SIDRA INTERSECTION 5.0.5.1510
www.sidrasolutions.com
Project: P:\S\SPTR00000001\0600INFO\Traffic\February-2011-TIA\Sidra\Hwy.2-Middle Dwy\Alt3-Buildout.sip
8000011, DAVID EVANS & ASSOCIATES INC, SINGLE