Appendix D Traffic Impact Analysis - westplainseis.com

MOVEMENT SUMMARY
Craig Rd./Dwy. North (YEAR 2032 PM PEAK, Alt 1 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
South: Craig Rd.
3L L 40 2.0 0.856 18.7 LOS B 16.5 419.1 0.96 0.90 27.0
8T T 896 2.0 0.853 13.2 LOS B 16.5 419.1 0.92 0.86 28.9
Approach 936 2.0 0.853 13.4 LOS B 16.5 419.1 0.92 0.87 28.8
North: Craig Rd.
4T T 707 1.0 0.728 6.5 LOS A 12.1 304.6 0.44 0.45 31.8
4R R 202 2.0 0.727 8.0 LOS A 12.1 304.6 0.44 0.54 31.5
Approach 909 1.2 0.728 6.8 LOS A 12.1 304.6 0.44 0.47 31.8
West: Northern Driveway
5L L 226 2.0 0.514 20.6 LOS C 4.4 110.9 0.81 1.02 25.6
2R R 51 2.0 0.516 14.7 LOS B 4.4 110.9 0.81 0.97 27.4
Approach 277 2.0 0.514 19.5 LOS C 4.4 110.9 0.81 1.01 25.9
All Vehicles 2122 1.7 0.853 11.4 LOS B 16.5 419.1 0.70 0.71 29.5
Level of Service (Aver. Int. Delay): LOS B. Based on average delay for all vehicle movements. LOS Method: Delay (HCM).
Level of Service (Worst Movement): LOS C. 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.
Processed: Thursday, February 10, 2011 5:01:16 PM 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\Craig-6th\2032 Alt3-Buildout-Craig-
Northdwy.sip
8000011, DAVID EVANS & ASSOCIATES INC, SINGLE