Appendix D Traffic Impact Analysis - westplainseis.com

MOVEMENT SUMMARY
Craig Rd./Hwy. 902 (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 7 2.0 0.333 17.6 LOS B 2.4 60.2 0.76 1.00 28.0
8T T 168 2.0 0.340 10.4 LOS B 2.4 60.2 0.76 0.86 30.7
8R R 7 2.0 0.333 11.4 LOS B 2.4 60.2 0.76 0.89 30.5
Approach 181 2.0 0.340 10.7 LOS B 2.4 60.2 0.76 0.86 30.6
East: SR 902
1L L 19 1.0 0.525 15.3 LOS B 4.5 114.3 0.64 0.89 29.1
6T T 384 1.0 0.526 5.3 LOS A 4.5 114.3 0.64 0.60 28.8
6R R 33 1.0 0.529 7.5 LOS A 4.5 114.3 0.64 0.71 28.9
Approach 437 1.0 0.526 5.9 LOS B 4.5 114.3 0.64 0.62 28.8
North: Craig Rd.
7L L 183 1.0 0.912 29.1 LOS C 19.7 495.8 1.00 1.35 20.9
4T T 216 1.0 0.913 23.7 LOS C 19.7 495.8 1.00 1.31 23.2
4R R 263 1.0 0.911 23.2 LOS C 19.7 495.8 1.00 1.35 21.6
Approach 662 1.0 0.912 25.0 LOS C 19.7 495.8 1.00 1.34 21.9
West: SR 902
5L L 106 1.0 0.806 20.5 LOS C 10.6 267.6 0.93 1.16 24.0
2T T 384 1.0 0.804 13.5 LOS B 10.6 267.6 0.93 1.12 25.5
2R R 12 1.0 0.815 16.1 LOS B 10.6 267.6 0.93 1.11 27.4
Approach 502 1.0 0.805 15.0 LOS C 10.6 267.6 0.93 1.13 25.2
All Vehicles 1782 1.1 0.912 16.1 LOS B 19.7 495.8 0.87 1.05 24.9
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 11:33:01 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\SR902-Craig Rd\2032 Alt1-Buildout-
SR902.sip
8000011, DAVID EVANS & ASSOCIATES INC, SINGLE