01337734

Component

https://doi.org/10.3141/2224-10

http://scholar.google.com...ozzi&publication_year=2011

Research was undertaken to develop multicriteria tools for measuring and analyzing the impact of recurring and nonrecurring congestion on freight. Unlike previous studies, this work used several distinct data sources to analyze the effects of congestion on I-5 in the Portland, Oregon, metropolitan area: Global Positioning System data from commercial trucks, Oregon Department of Transportation corridor travel time loop data, and incident data. A new methodology and algorithms combine these data sources and estimate the impact of recurrent and nonrecurrent congestion on reliability and delays, costs, and emissions of freight movements. The results suggest that traditional traffic sensor data tend to underestimate the impact of congestion on travel times and variability of commercial vehicles. Congestion is detrimental not only for carriers’ and shippers’ costs but also for the planet because of increases in greenhouse gas emissions and for the local community because of increases in oxides of nitrogen, particulate matter, and other harmful pollutants. The developed methodology can provide useful freight operation and performance data for the freight community, transportation decision makers, and other transportation stakeholders.

01353537

11-3915

English

pp 82-93

2011

Transportation Research Record: Journal of the Transportation Research Board

9780309167352

Print

Figures (6) ; References (36)

Commercial vehicles; Environmental impacts; Exhaust gases; Freight traffic; Global Positioning System; Greenhouse gases; Performance measurement; Pollutants; Traffic congestion; Traffic delays; Transportation corridors; Travel time; Truck traffic; Trucking

Interstate 5

Portland Metropolitan Area (Oregon)

Environment; Freight Transportation; Operations and Traffic Management; I15: Environment; I70: Traffic and Transport

TRIS, TRB, ATRI

Feb 17 2011 6:41PM

• Algorithms for Studying the Impact of Travel Time Reliability Along Multisegment Trucking Freight Corridors
• Estimating the Benefits of Performance-Based Standards Vehicles
• Evaluation of Emissions Reduction in Urban Pickup Systems: Heterogeneous Fleet Case Study
• Freight Generation, Freight Trip Generation, and Perils of Using Constant Trip Rates
• Intermodal Container Flow Simulation Model and Its Applications
• Models for Minimizing Backhaul Costs Through Freight Collaboration
• New Formulation for the Traveling Salesman Problem with Separation Requirement and Cost
• Online Freight Network Assignment Model with Transportation Disruptions and Recourse
• Supply Chain Broker Operations: Network Perspective
• Time-Dependent Effects on Parameters of Freight Demand Models: Empirical Investigation