Of course, there is the question of whether the traffic surveys were accurate :
Here is a letter from former Transport Minister Derek Twigg regarding the Melksham/TransWilts issue, followed by an analysis by grahame (link below.)
http://www.savethetrain.org.uk/melkshamrailway/145_Letter_from_Derek_Twigg.htmlQuote from the above link :
"I has seen the statistics quoted by the Department for Transport at the time of the original franchise specification, and noted they were taken over a relatively short period (8 days) which he suspects might have included the Easter weekend. As someone with a University Degree which included a major statistics element, I can assure the minister that a sample of this size is insufficient to be statistically significant - he would need the statistics from around 15 to 20 days, chosen at random throughout the year, to be able to read anything into the figuures that could relate to overall usage on a service which may well have a seasonal element."
Quote from the Beeching Report :
"The traffic surveys, which were made in great detail, extended over only one week, the week ending on 23rd April, 1961, because it was impossible to continue the massive recording effort involved for a longer period. It was realised, therefore, that conclusions about some streams of traffic and about some parts of the system which are affected by seasonal changes could not be based firmly on the traffic surveys alone. Subject to this limitation, however, there can be little doubt about the general reliability of the picture revealed."