This paper discusses the selection of indicators for comprehensive and sustainable transportation planning. It discusses the concept of sustainability and the role of indicators in planning, describes factors to consider in selecting indicators, identifies potential problems with conventional indicators, describes examples of indicators, and provides recommendations for selecting indicators for use in a particular situation.

Abstract:There is growing interest in sustainability, sustainable development, and sustainable transportation. This paper identifies issues related to the definition, evaluation and implementation of sustainable transportation. Significant issues include the range of definitions of sustainability, the range of issues considered under sustainability, the range of perspectives, criticism of sustainability analysis, evaluating sustainability, transportation impacts on sustainability, goals vs. objectives, sustainable transport decision making, approaches to sustainable transport, automobile dependency, equity, land use, community liveability, and sustainable transportation solutions. Sustainable development originally focused on a few resource consumption issues, but it is increasingly defined more broadly to include economic and social welfare, equity, human health and ecological integrity. A narrow definition of sustainable transport tends to favour individual technological solutions, while a broader definition tends to favour more integrated solutions, including improved travel choices, economic incentives, institutional reforms, land use changes as well as technological innovation. Sustainability planning may require changing the way people think about and solve transportation problems.

No abstract

No abstract

This paper summarizes price elasticities and cross elasticities for use in public transit planning. It describes how elasticities are used, and summarizes previous research on transit elasticities. Commonly used transit elasticity values are largely based on studies of short-and medium-run impacts performed decades ago when real incomes where lower and a larger portion of the population was transit dependent. As a result, they tend to be lower than appropriate to model long-run impacts. Analysis based on these elasticity values tends to understate the potential of transit fare reductions and service improvements to reduce problems such as traffic congestion and vehicle pollution, and understate the long-term negative impacts that fare increases and service cuts will have on transit ridership, transit revenue, traffic congestion and pollution emissions.