Evaluating Accessibility For Transportation Planning

This paper discusses the concept of accessibility and how it can be incorporated in transport planning. Accessibility refers to people's ability to reach goods, services and activities, which is the ultimate goal of most transport activity. Many factors affect accessibility, including mobility (physical movement), the quality and affordability of transport options, transport system connectivity, mobility substitutes, and land use patterns. Accessibility can be evaluated from various perspectives, including a particular group, mode, location or activity. Conventional planning tends to overlook and undervalue some of these factors and perspectives. More comprehensive analysis of accessibility in planning expands the scope of potential solutions to transport problems.

This paper discusses the concept of accessibility and how it can be incorporated in transport planning. Accessibility refers to people's ability to reach goods, services and activities, which is the ultimate goal of most transport activity. Many factors affect accessibility, including mobility (physical movement), the quality and affordability of transport options, transport system connectivity, mobility substitutes, and land use patterns. Accessibility can be evaluated from various perspectives, including a particular group, mode, location or activity. Conventional planning tends to overlook and undervalue some of these factors and perspectives. More comprehensive analysis of accessibility in planning expands the scope of potential solutions to transport problems.

Accessibility is a concept central to integrated transport and land use planning. The goal of improving accessibility Ð for all modes, for all people Ð has made its way into mainstream transport policy and planning in communities worldwide. This unique book introduces new accessibility approaches to transport planning across Europe and the United States. The expert contributors present advanced interdisciplinary approaches in accessibility research and modelling with best practices in accessibility planning and evaluation, to better support integrated transport and land-use policy-making. This book will prove an absorbing read for scholars, researchers and students working on accessibility issues across different academic fields including transport geography, spatial economics and social science. Transport and urban planners will also find the book to be an invaluable reference tool.

In From Mobility to Accessibility, an expert team of researchers flips the tables on the standard models for evaluating regional transportation performance. Jonathan Levine, Joe Grengs, and Louis A. Merlin argue for an "accessibility shift" whereby transportation planning, and the transportation dimensions of land-use planning, would be based on people's ability to reach destinations, rather than on their ability to travel fast. Existing models for planning and evaluating transportation, which have taken vehicle speeds as the most important measure, would make sense if movement were the purpose of transportation. But it is the ability to reach destinations, not movement per se, that people seek from their transportation systems. While the concept of accessibility has been around for the better part of a century, From Mobility to Accessibility shows that the accessibility shift is compelled by the fundamental purpose of transportation. The book argues that the shift would be transformative to the practice of both transportation and land-use planning but is impeded by many conceptual obstacles regarding the nature of accessibility and its potential for guiding development of the built environment. By redefining success in transportation, the book provides city planners, decisionmakers, and scholars a path to reforming the practice of transportation and land-use planning in modern cities and metropolitan areas.

This paper discusses the concept of accessibility and how it can be incorporated in transport planning. Accessibility refers to people's ability to reach goods, services and activities, which is the ultimate goal of most transport activity. Many factors affect accessibility, including mobility (physical movement), the quality and affordability of transport options, transport system connectivity, mobility substitutes, and land use patterns. Accessibility can be evaluated from various perspectives, including a particular group, mode, location or activity. Conventional planning tends to overlook and undervalue some of these factors and perspectives. More comprehensive analysis of accessibility in planning expands the scope of potential solutions to transport problems.

Much of land use and transportation planning aims to reduce traffic congestion. Comprehensive and policy relevant measures useful to land-use and transportation planning need to capture both land use and travel dimensions. This book focuses on the science and policy around the multi-modal concept of accessibility.

This paper discusses the concept of accessibility and how it can be incorporated in transport planning. Accessibility refers to people's ability to reach goods, services and activities, which is the ultimate goal of most transport activity. Many factors affect accessibility, including mobility (physical movement), the quality and affordability of transport options, transport system connectivity, mobility substitutes, and land use patterns. Accessibility can be evaluated from various perspectives, including a particular group, mode, location or activity. Conventional planning tends to overlook and undervalue some of these factors and perspectives. More comprehensive analysis of accessibility in planning expands the scope of potential solutions to transport problems.

How can accessibility be defined? How useful are different accessibility approaches in evaluating land-use and transport policy strategies? How can the economic benefits associated with accessibility changes be measured? What are the accessibility benefits of having a public transport service available as a transport option for unexpected future use? How can the land-use, transport and accessibility impacts of Dutch compact urbanisation policies implemented in the last decades be measured? The research presented in this thesis seeks to answer these and related questions. Results suggest that current practices in evaluating accessibility in the Netherlands can be improved using geographical accessibility measures within an integrated land-use/transport perspective. Another major outcome is formed by the possible significant benefits associated with option use of public transport services in addition to use and non-use benefits traditionally included in transport policy appraisal. Residents in the service area of regional railway links seemed to be willing to pay significant amounts for the continued availability of the railway links for unexpected future use. Dutch compact urbanisation policies were also shown to have contributed to the land-use and transport-related intentions of the Dutch national government. Without compact urban development urban sprawl would likely have been greater, resulting in greater car use and related environmental impacts, higher congestion and lower accessibility levels, along with stronger fragmentation of wildlife habitats.