The New Transportation Planning Paradigm

Abstract

This article examines the roots of the paradigm shift taking place in transportation planning, one that is changing how transportation problems are defined and solved as well as how system performance is evaluated. The shift involves moving from an old paradigm in which transport system performance is primarily evaluated based on speed, convenience, and affordability of motor vehicle travel (thus favoring automobile-oriented improvements) to a more comprehensive, multimodal system of evaluation that considers a range of modes, objectives, impacts and improvement options. While motor vehicle travel continues to have the largest mode share in most communities, an increased use of other modes such as walking, bicycling and public transit, make multimodal planning necessary. The old transportation planning paradigm focused more on mobility, while the new paradigm emphasizes accessibility. According to the author, the new planning paradigm offers a more comprehensive analysis considering a wider range of planning objectives and impacts, and it offers the opportunity to reach new conclusions about transport system efficiency.

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