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