Curl, A, Nelson, JD and Anable, J (2015) Same question, different answer: A comparison of GIS-based journey time accessibility with self-reported measures from the National Travel Survey in England. Computers, Environment and Urban Systems, 49. pp. 86-97. ISSN 0198-9715
Abstract
Accessibility measures are usually designed to be objective representations of the ‘real’ conditions to provide a baseline for planning decisions and to track change over time. A wide range of approaches to measuring accessibility have been developed, usually based largely on quantifiable factors such as journey time. The simplest of these are based on the time taken to reach the nearest destination from an origin point. Destinations might include healthcare, education, employment or supermarkets, amongst others. This paper posits that people’s perceptions and experiences may differ from objectively measured conditions and crucially may be more important for understanding behaviour. An understanding of the difference between objective and subjective measures, and how they relate to each other is therefore vital before using either measure to inform policy decisions. This paper compares two approaches to measuring journey time accessibility to a range of destinations using objective measures of accessibility, calculated using GIS and individuals’ self reported values, based on travel survey data. Using two publically available datasets for England this paper explores the two approaches to measuring journey time accessibility to a range of destinations. Discordance between the two is found. Survey reported measures are found to be greater than objective measures in urban areas, but less in rural areas. This can be understood partly due to differences both between objective measures and reality and between perceptions and reality.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2013 Elsevier Ltd. This is an author produced version of a paper published in Computers, Environment and Urban Systems. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Journey time; Accessibility; Objective; Subjective |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > Institute for Transport Studies (Leeds) > ITS: Sustainable Transport Policy (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Jun 2016 15:27 |
Last Modified: | 10 Jun 2016 12:07 |
Published Version: | http://dx.doi.org/10.1016/j.compenvurbsys.2013.10.... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.compenvurbsys.2013.10.006 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:99426 |