Accessibility and Spatial Interaction
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Accessibility and Spatial Interaction

Edited by Ana Condeço-Melhorado, Aura Reggiani and Javier Gutiérrez

The concept of accessibility is linked to the level of opportunities available for spatial interaction (flows of people, goods or information) between a set of locations, through a physical and/or digital transport infrastructure network. Accessibility has proved to be a crucial tool for understanding the framework of sustainability policy in light of best practice planning and decision-making processes. Methods such as cost–benefit analysis, multi-criteria analysis and risk analysis can benefit greatly from embedding accessibility results. This book presents a cohesive collection of recent studies, modeling and discussing spatial interaction by means of accessibility indicators
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Chapter 8: Mapping transport disadvantages of elderly people in relation to access to bus stops: contribution of geographic information systems

Vitor Ribeiro, Paula Remoaldo and Javier Gutiérrez


Easy access to public transportation facilities is a critical issue for elderly people, since the elderly rely on public transportation and are one of the more mobility-constrained groups. Yet, the specific factors affecting the accessibility of elderly people to public transportation, such as the slope of streets and the speed at which they walk, are rarely considered in accessibility analysis. The objective of this chapter is to investigate the influence of these factors on the access to public transportation using a geographic information system (GIS). It was concluded that the consideration of the streets’ slopes and the speed at which elderly people walk provides better estimates of the accessibility to bus stops. As a result, transportation-related social exclusion can be measured more precisely, and spatial inequalities are likely to be better understood.

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