01554267

Component

https://doi.org/10.3141/2503-13

The adverse impacts of greenhouse gasses (GHG) and the imperative for reducing the existing rate of GHG production are well established. In the United States, the largest source of GHG emissions from human activities is from burning fossil fuels, primarily for the generation of electricity and transportation. The transportation sector accounts for 28% of all U.S. GHG production. Heavy-duty vehicles, such as large freight trucks, account for nearly one-fifth of the U.S. total, and this fraction is expected to grow rapidly. Consequently, many efforts are being used to reduce the total emissions of freight trucks. Most efforts emphasize one of four areas: engineering improvements to improve fuel economy or reduce emissions, shifts to other transport modes, improved logistics to reduce the movement of partially full or empty containers, and reduced travel costs for individual trucks. A few studies have assessed modifications to route choice considerations as a means of improving the fuel economy of individual vehicles and show potential gains. In this study, the potential gains of emissions-based route choice were assessed by integrating the U.S. Environmental Protection Agency motor vehicle emission simulator with a macroscopic regional traffic demand model. For this integration, route choices included a simplified emissions calculation within the repeated model iteration runs of an algorithm of the Frank–Wolfe type. The analyses suggested that reductions of freight truck emissions were possible and showed an example in which the total system’s truck emissions were reduced by up to 0.61% (88.8 tons).

01578185

15-4936

English

pp 119–127

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309295802

Print

Figures (7) ; References (12) ; Tables (2)

Air quality management; Greenhouse gases; Macroscopic traffic flow; Pollutants; Route choice; Traffic assignment; Trucks

Motor Vehicle Emission Simulator (MOVES)

United States

Energy; Environment; Freight Transportation; Motor Carriers; Planning and Forecasting; I15: Environment; I72: Traffic and Transport Planning

PRP, TRIS, TRB, ATRI

Dec 30 2014 1:39PM

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• Assessment of Corridors with Different Types of Intersections: Environmental and Traffic Performance Analysis
• Characterization of Real-World Particle Number Emissions During Reignition Events from a 2010 Light-Duty Hybrid Electric Vehicle
• Developing Vehicle Classification Inputs for Project-Level MOVES Analysis
• Development of the Worldwide Harmonized Test Procedure for Light-Duty Vehicles: Pathway for Implementation in European Union Legislation
• Effects of Pavement Surface Roughness and Congestion on Expected Freeway Traffic Energy Consumption
• Emergence of Electric-Powered Two-Wheelers on Asian Roads: Curse or Blessing from a Sustainable Transport Perspective?
• Fusion of Vehicle Weight and Activity Data for Improved Vehicle Emission Modeling
• Hybrid Model for Prediction of Carbon Monoxide and Fine Particulate Matter Concentrations near a Road Intersection
• Incorporating Vehicle Emissions Models into the Geometric Highway Design Process: Application on Horizontal Curves
• Influence of Fuel Injection System and Engine-Timing Adjustments on Regulated Emissions from Four Biodiesel Fuels
• Measurement and Evaluation of Real-World Speed and Acceleration Activity Envelopes for Light-Duty Vehicles
• Model System to Evaluate Impacts of Vehicle Purchase Tax and Fuel Tax on Household Greenhouse Gas Emissions
• Networkwide Impacts of Vehicle Ecospeed Control in the Vicinity of Traffic Signalized Intersections
• Real-Time Emissions Modeling with Environmental Protection Agency MOVES: Framework Development and Preliminary Investigation
• Transportation Activities Associated with High-Volume Hydraulic Fracturing Operations in the Marcellus Shale Formation: Analysis of Environmental and Infrastructure Impacts