Welcome to the forum, Paul ... please feel free to quote any of my "stuff" on the TransWilts page (others, obviously, with appropriate permission and credits). And I'll paste stuff onto that site once I've been trained
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For other readers, the TransWilts site Paul refers to is at
http://www.transwilts.org - and there are currently Wilton and Wiltshire (general) travel surveys there. The Corsham survey was completed with over 700 responses (more than twice the number needed for it to be statistically significant) - results posted on the site.