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GIS as a tool for sample selection in a travel behaviour survey

Lookup NU author(s): Dr Anna Fraszczyk

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Abstract

Whilst Geographical Information Systems (GIS) are now more commonly used in transport research and modelling, GIS techniques were used in this study to select homogeneous sample areas (in terms of geography and census attributes) for data collection. For this purpose, a GIS mapping system for Tyne and Wear, UK was built. The system included topographic maps of the area, boundary maps of Lower Super Output Areas (LSOAs) and aggregated census statistics datasets for LSOAs. Criteria relating to census attributes and the nature of transport were employed to identify “hotspots” by GIS enquiry to provide suitably matching areas. The study was concerned with identifying commuters and the GIS “hotspots” approach allowed the identification of areas where there were multiple alternatives for different travel to work. The pilot study identified that the GIS approach was superior in collecting a balanced sample, as compared to an employment based destination survey. This paper explores the benefits and costs of the alternative approaches which include the need to target households with paper based surveys in the origin-based (home) sample after identification by GIS and requires significant preparation of the data as compared to the alternative of a destination based sample (work) which allows the collection of data through an on-line survey.The paper concludes by identifying GIS as an important tool in selecting a sample area for data collection using multiple criteria but that plans for data collection need to be flexibly constructed to overcome unexpected challenges.


Publication metadata

Author(s): Fraszczyk A, Mulley C

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Unpublished

Conference Name: The Royal Geographical Society Annual International Conference

Year of Conference: 2012

URL: http://www.rgs.org/


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