Analysis of Alternatives for Accommodating Trucks on Urban
Freeways in Southern Nevada
Vinod Vasudevan, Alexander Paz, Naveen Veeramisti, Pankaj Maheswari & Majrooh James
Transportation Research CenterUniversity of Nevada, Las Vegas
Presentation prepared forThe Monthly Advisory Committee Meeting
April 08, 2010
1
Las Vegas Network
2
Alternatives
– Truck Only Lanes– Truck Restricted Lanes– Truck Only Toll Lanes– Truck Bypass– Truckways with Toll
3
System Components
• Freeways, arterials, collectors, interchanges • 215 Beltway - 53 mi• I-15 - 42 mi• US-95 - 42 mi• TAZ’s - 696 (initially 1,646)• Nodes - 9129• Links - 16582• Control - 791 (Actual Signal timings)
4
Input data
• Network• Origin• Destination• Control• Demand
– TDM: 547,709 for 7 – 9 AM– After Calibration: 560,448 for 7 – 9 AM– ( 2.3 % increase in demand )
5
6
Preliminary Calibration ResultsBase Case Scenario
AM Peak Period
One Month Progress
• 9 March 2010– 791 actual signalized
intersections – actual signal timings– 49 actual counts (FAST)– Avg. Travel Time: 14.37
min (before calibration)– 26 / 49 of link counts
within the 15% range (53 % within range) preliminary calibration
• 8 April 2010– 791 actual signalized
intersections – actual signal timings– 62 actual counts (FAST)– Avg. Travel Time: 11.18
min (after calibration)– 52 / 62 of link counts
within the 15% range (84 % within range) after Calibration
7
8
53 % of link counts are within the 15% range.
FHWA requires 85%
8
9
84 % of link counts are within the 15% range.
Acc. To FHWA Primer Vol. III, > 85%
9
10
+15%
-15%
Slide 10
Global Statistics• Before Calibration:
– Average Travel Time – 14.3689 min– Total Network Travel Time – 129,269.9609 hrs– Average trip Distance – 8.2226 miles– Total Trip Distance(VMT) – 4,438,463.0000 miles
• After Calibration– Average Travel Time – 11.1831 min– Total Network Travel Time – 105,508.7812 hrs– Average trip Distance – 7.0413 miles– Total Trip Distance(VMT) – 3,946,283.0000 miles
11
12
• Truck Restricted Lane
• Truck only Lane• Truck Only Toll
12
Alternatives for Accomadating Trucks
13
Truck Bypass
Acknowledgements
• RTC, Southern Nevada• Nevada DOT• USDOT - RITA
14
Questions?
Thank you!
15
Top Related