The Metropolitan Transportation Planning ... - Saginaw County

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The Metropolitan Transportation Planning Process: Key Issues TRANSPORTATION DEMAND MANAGEMENT (TDM) What is TDM? In its broadest sense, TDM is any action or set of actions designed to influence the intensity, timing, and distribution of transportation demand, in order to reduce traffic congestion or enhance mobility. Such actions can include offering commuters alternative transportation modes and/or services, providing incentives to travel on these modes or at non-congested hours, providing opportunities to link or "chain" trips together, and/or incorporating growth management or traffic impact policies into local development decisions. What is the role of the MPO in encouraging the use of TDM actions? Transportation demand management strategies are part of the toolbox of actions available to transportation planners for solving transportation problems. As such, MPOs should make sure that TDM actions are considered in the planning process. In areas where congestion management systems are required (populations greater than 200,000), TDM actions are among the strategies that can reduce congestion or enhance mobility. What is the likely impact of TDM actions on transportation system performance? Available evidence suggests that well-conceived and aggressively promoted demand reduction programs can decrease peak period traffic by as much as 10 to 15 percent. In fact, significantly higher demand reduction levels have been achieved at several employment sites. Demand reduction efforts, however, unless undertaken on a truly massive scale, can have only a local impact. They can relieve spot congestion -- for example, at entrances and exits to large employment centers -- but they cannot appreciably reduce traffic on freeways and major arterials. The only exception to this seems to be areawide road pricing practices, such as tolls and "hot lanes," that (at least as modeled) appear to have significant influence on travel demand. Studies have shown that employer support for ride sharing, use of financial incentives to shift travel to alternative modes, restricting the number and use of parking spaces, and charging higher prices for parking are important supporting strategies for changing traveler behavior. Additional sources of information: A Toolbox for Alleviating Traffic Congestion and Enhancing Mobility. Institute of Transportation Engineers: Washington, D.C., 1997.
The Metropolitan Transportation Planning Process: Key Issues 3-C Continuing, Cooperative and Comprehensive Planning Process AASHTO ADA ADT AMPO APA APTA BMP BMS BTS CAA CAAA CE CFR CIP CMAQ CMS COG DEIS DOT EA EIS EJ EPA FAA FEIS FHWA FONSI FTA FY GIS GPS HOV HSR I/M IHS IM American Association of State Highway and Transportation Officials Americans with Disabilities Act Average Daily Traffic (or Average Daily Trips) Association of Metropolitan Planning Organizations American Planning Association American Public Transportation Association Best Management Practice Bridge Management System Bureau of Transportation Statistics Clean Air Act Clean Air Act Amendments Categorical Exclusions Code of Federal Regulations Capital Improvement Program Congestion Mitigation and Air Quality Program Congestion Management System Council of Governments Draft Environmental Impact Statement Department of Transportation Environmental Assessment Environmental Impact Statement Environmental Justice Environmental Protection Agency Federal Aviation Administration Final Environmental Impact Statement Federal Highway Administration Finding of No Significant Impact Federal Transit Administration Fiscal Year Geographic Information Systems Global Positioning Systems High-Occupancy Vehicle High-Speed Rail Inspection and Maintenance Interstate Highway System Interstate Maintenance ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITS LOS LRT LRTP M&O MIS MOA MOU MPO MSA MTP NAA NAAQS Intelligent Transportation Systems Level of Service (traffic flow rating) Light Rail Transit Long-Range Transportation Plan Management and Operations Major Investment Study Memorandum of Agreement Memorandum of Understanding Metropolitan Planning Organization Metropolitan Statistical Area Metropolitan Transportation Plan Nonattainment Area National Ambient Air Quality Standards
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The Metropolitan Transportation Planning ... - Saginaw County

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