00371332

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http://onlinepubs.trb.org...s/trr/1982/870/870-002.pdf

https://scholar.google.co...rand&publication_year=1982

A quick-response methodology for estimating the energy impacts of transportation system capital and operational improvements is presented. The method considers both energy consumed by vehicles and energy consumed in the construction and maintenance of facilities. Unlike many earlier energy impact estimation procedures, this methodology explicitly considers induced and diverted travel resulting from a transportation improvement and the effect of this travel on the level of service of transportation facilities. Application of the manual methodology takes less than 4 h and uses readily available data. The results are very sensitive to baseline operating conditions on the facilities that are affected by an improvement. The methodology was applied to 20 sample projects and produced results that were frequently counterintuitive. Highway expansion and new construction sometimes result in increased energy consumption both because vehicle fuel economy generally decreases at speeds above 35 mph and because of the energy consumed by induced travel. However, because the fuel consumption of congested travel is extremely high, projects that eliminate stop-and-go conditions frequently reduce energy consumption in spite of induced travel and in spite of the energy consumed in constructing and maintaining the expanded facility. Ramp metering and traffic signal improvements are generally effective in reducing energy consumption. (Author)

Publication of this paper sponsored by Committee on Energy Conservation and Transportation Demand. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

00380410

HS-035 229

pp 10-15

1982

Transportation Research Record

61st Annual Meeting of the Transportation Research Board

0309033748

Print

Figures (3) ; References (12) ; Tables (5)

Energy consumption; Fuel consumption; Impact studies; Improvements; Methodology; Motor vehicles; Ramp metering; Speed; Traffic congestion; Traffic signals; Traffic speed; Transportation; Travel patterns

Transportation systems

Energy; Planning and Forecasting; Transportation (General); I10: Economics and Administration

HSL, TRIS, TRB

Mar 31 1983 12:00AM

• ASSESSMENT OF STATE EMERGENCY ENERGY CONSERVATION PLANNING
• ECONOMIC IMPACTS OF PETROLEUM SHORTAGES AND IMPLICATIONS FOR THE FREIGHT TRANSPORTATION INDUSTRY
• EFFICACY OF URBAN-AREA TRANSPORTATION CONTINGENCY PLANS: A STUDY OF COMPLETED PLANS
• ENERGY CONSERVATION POTENTIAL OF STAGGERED WORK HOURS
• FORECASTS OF INTERCITY PASSENGER DEMAND AND ENERGY USE THROUGH 2000
• INDIRECT ENERGY CONSIDERATIONS OF PARK-AND-RIDE LOTS
• LIMITED TRUCKTRAIN: A CONCEPT FOR ENERGY CONSERVATION AND TRUCK PRODUCTIVITY
• MOTOR-VEHICLE FUEL ECONOMY: ESTIMATED COST AND BENEFITS FROM 1980 TO 2020
• NATIONAL METHANOL FUEL SYSTEMS: A TRANSPORTATION FUEL PATHWAY
• POTENTIAL FUEL SAVINGS OF GENERAL-FREIGHT CARRIERS OPERATING UNDER BRIDGE FORMULA B GROSS VEHICLE WEIGHT LIMITS
• SIMULATION FOR ESTIMATING THE IMPACT OF SUPPLY RESTRICTION POLICIES ON GASOLINE CONSUMPTION
• SUMMARY OF INTERNATIONAL MARITIME FUEL CONSERVATION MEASURES
• TRANSIT USE AND ENERGY CRISES: EXPERIENCE AND POSSIBILITIES
• TRENDS IN ENERGY USE AND FUEL EFFICIENCY IN THE U.S. COMMERCIAL AIRLINE INDUSTRY