Abstract
This report considers six methods of coding travel survey addresses with locational references suitable for computer analysis. The examples are taken from the impact studies of urban rail investments in Glasgow and Tyne and Wear which were initiated by TRRL. Three are geocoding exercises based on the UK ordnance survey national grid; the remainder are concerned with coding to traffic zones or postcode areas. A comparison is made between conventional manual coding conversion procedures: postcodes to geocodes and geocodes to zone codes. The report gives conclusions on address coding methods and costs in the context of travel surveys sponsored by transport operators, local authorities and central government. (Author/publisher)