Appendix D Traffic Impact Analysis - westplainseis.com

INTERSECTION SUMMARY
Craig Rd./Hwy. (YEAR 2032 PM PEAK, ALT2 Buildout)
West Plains Development
Roundabout
Site: Roundabout
Intersection Performance - Hourly Values
Performance Measure Vehicles Persons
Demand Flows (Total) 6400 veh/h 7690 pers/h
Percent Heavy Vehicles 1.0 %
Degree of Saturation 1.156
Practical Spare Capacity -26.8 %
Effective Intersection Capacity
5514 veh/h
Control Delay (Total) 96.57 veh-h/h 115.89 pers-h/h
Control Delay (Average) 54.3 sec 54.3 sec
Control Delay (Worst Lane)
130.2 sec
Control Delay (Worst Movement) 127.3 sec 127.3 sec
Geometric Delay (Average)
4.7 sec
Stop-Line Delay (Average)
49.6 sec
Level of Service (Aver. Int. Delay)
LOS D
Level of Service (Worst Movement)
LOS F
Level of Service (Worst Lane)
LOS F
95% Back of Queue - Vehicles (Worst Lane) 54.5 veh
95% Back of Queue - Distance (Worst Lane) 1372.3 ft
Total Effective Stops 12449 veh/h 14939 pers/h
Effective Stop Rate 1.95 per veh 1.94 per pers
Proportion Queued 0.86 0.86
Performance Index 333.6 333.6
Travel Distance (Total) 2325.2 veh-mi/h 2790.2 pers-mi/h
Travel Distance (Average) 1918 ft 1916 ft
Travel Time (Total) 162.3 veh-h/h 194.8 pers-h/h
Travel Time (Average) 91.3 sec 91.2 sec
Travel Speed 14.3 mph 14.3 mph
Cost (Total) 2340.48 $/h 2340.48 $/h
Fuel Consumption (Total)
146.7 gal/h
Carbon Dioxide (Total)
1388.6 kg/h
Hydrocarbons (Total)
2.556 kg/h
Carbon Monoxide (Total)
100.20 kg/h
NOx (Total)
2.870 kg/h
LOS (Aver. Int. Delay) for Vehicles is based on average delay for all vehicle movements. LOS Method: Delay (HCM).
LOS Method for individual vehicle movements and lanes: Delay (HCM).
Roundabout LOS Method: Same as Signalised Intersections.
Roundabout Capacity Model: SIDRA Standard.
Intersection Performance - Annual Values
Performance Measure Vehicles Persons
Demand Flows (Total) 3,072,000 veh/y 3,691,201 pers/y
Delay 46,355 veh-h/y 55,626 pers-h/y
Effective Stops 5,975,708 veh/y 7,170,850 pers/y
Travel Distance 1,116,084 veh-mi/y 1,339,301 pers-mi/y
Travel Time 77,922 veh-h/y 93,506 pers-h/y
Cost 1,123,429 $/y 1,123,429 $/y
Fuel Consumption
70,404 gal/y
Carbon Dioxide
666,530 kg/y
Hydrocarbons
1,227 kg/y
Carbon Monoxide
48,096 kg/y
NOx
1,377 kg/y
Processed: Thursday, February 10, 2011 11:03:33 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\Craig-Hwy.2\2032 Alt2-Buildout-