University of Twente Student Theses


Multimodal accessibility indicators in GIS

Kumar, Parveen (2011) Multimodal accessibility indicators in GIS.

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Abstract:An urban area is a web of various activities and people, wherein the transport system connects the two in space. The ease, with which people are able to access facilities and transfer goods from one place to other, depends upon the effectiveness of the transportation system in the urban areas. A paradigm shift is occurring in conventional transport planning practices. Modern transportation planning practices are based upon accessibility concept, which not only helps to improve transport infrastructure but also improves the travel behaviour and accessibility to various land uses. Due to the shift from mobility oriented solution to accessibility based solution in transport service, there is a remarkable change is shaping in service provided by the transport system. Due to increased mobility, urban areas are facing various problems like traffic congestion, increasing number of automobiles , lack of a good public transport system and lack of integration between transport infrastructure and land use. These issues have led various organizations and public policy makers to adapt that solution which integrates various transport infrastructures as well as land use, and this has lead to adopt the concept of multimodal transport system. The concept of multimodal transport system is influencing the overall transport network structure and activities on space. But one of the problems realised by the policy makers is that once the multimodal transport system comes on ground then how can one evaluate and assess it on the basis of desired goal of increased accessibility. For this, accessibility based measures are found to be more accurate in evaluating the multimodal transport system against its desired goals. Accessibility is one of the important performance measures which provides information with regards to functionality and effectiveness of existing and newly planned transport systems. It thereby provides necessary information for designing as well as monitoring the transportation system in integration with land use system of urban area. This research seeks to investigate accessibility of a multimodal transport system in an urbanised area. From literature and current practices various factors influencing multimodality in transport are interpreted. The research aims to identify various accessibility indicators, which critically evaluate the system and identify key factors which influence multimodality by comparison of accessibility between automobile-only based and multimodal based system. The method used to conduct accessibility analysis follow the work of Liu and Zhu , at two levels; city level and regional level. The first requirement was to develop multimodal transport network and unimodal network in GIS environment, which help to generate the cost factors to conduct accessibility measure and selection of distance decay function But Logsum cost method applied to calculate cost for multimodal transport system. This study only focuses on job accessibility experienced by various zones in the study area. It was found from the study that choosing the appropriate accessibility measure for conducting accessibility measure depend upon the assumptions chosen for the accessibility analysis and results will differ with different socio-economic structures and modes(of what) used. The findings of this research will hopefully help the planners and decision makers to efficiently invest in transport infrastructure and monitor them
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
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