IT IS something of an exaggeration to describe the public as having been misled (Oxford Mail, August 19) by the statistics provided by the Safer Roads Partnership.

The significance of the increase in speeding at the Woodstock site is somewhat clouded by the fact of a decrease, as yet unexplained, between 2008/9 and the first part of 2010. But an increase, there nevertheless was, when the camera was switched off.

It is particularly difficult to produce reliable comparisons at the Woodstock site.

The camera is situated in a central island, and could be turned periodically to face either direction.

It is entirely plausible that there is a difference in the tendency to speed between the two directions; vehicles coming from the rural area south of Woodstock are very likely to be travelling at greater speed than those leaving the built-up area of Woodstock.

The variation from year to year may reflect nothing more than the predominant direction in which the camera faced during those years.

The partnership would be well advised to select a different site if it wishes to make an accurate assessment of the increase in speed since the cameras were turned off.

Chris Robins, parish councillor, Foxdown Close, Kidlington