Appendix D Traffic Impact Analysis - westplainseis.com

MOVEMENT SUMMARY
Craig Rd./Hwy. 902 (YEAR 2032 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
South: Craig Rd.
3L L 7 2.0 0.208 16.5 LOS B 1.4 34.3 0.67 0.95 28.5
8T T 112 2.0 0.211 9.2 LOS A 1.4 34.3 0.67 0.76 31.3
8R R 7 2.0 0.208 10.3 LOS B 1.4 34.3 0.67 0.80 31.2
Approach 126 2.0 0.211 9.7 LOS B 1.4 34.3 0.67 0.77 31.1
East: SR 902
1L L 19 1.0 0.525 14.2 LOS B 4.5 113.1 0.57 0.84 29.6
6T T 384 1.0 0.525 4.3 LOS A 4.5 113.1 0.57 0.48 29.1
6R R 87 1.0 0.525 6.5 LOS A 4.5 113.1 0.57 0.62 29.2
Approach 490 1.0 0.526 5.1 LOS B 4.5 113.1 0.57 0.52 29.2
North: Craig Rd.
7L L 124 1.0 0.745 19.5 LOS B 10.1 254.8 0.90 1.09 24.2
4T T 166 1.0 0.746 14.2 LOS B 10.1 254.8 0.90 1.03 27.8
4R R 247 1.0 0.747 13.6 LOS B 10.1 254.8 0.90 1.05 25.6
Approach 537 1.0 0.747 15.2 LOS B 10.1 254.8 0.90 1.05 25.9
West: SR 902
5L L 87 1.0 0.667 15.2 LOS B 6.9 173.8 0.74 0.98 26.2
2T T 384 1.0 0.669 8.3 LOS A 6.9 173.8 0.74 0.82 28.4
2R R 12 1.0 0.679 10.9 LOS B 6.9 173.8 0.74 0.86 30.6
Approach 483 1.0 0.669 9.6 LOS B 6.9 173.8 0.74 0.85 28.0
All Vehicles 1636 1.1 0.747 10.1 LOS B 10.1 254.8 0.73 0.81 27.8
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 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.
Processed: Thursday, February 10, 2011 11:44:04 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 Alt3-Buildout-
SR902.sip
8000011, DAVID EVANS & ASSOCIATES INC, SINGLE