YOUR piece on 20mph speed limits (March 3) is sadly, almost irresponsibly, one-sided.

Yes, there are inevitably enforcement issues but there are also significant examples of the successful implementation of speed limits.

For example, local councillors in East Oxford were instrumental in implementing the 20mph zone on Cowley Road (some years before the more widespread limit was introduced).

During this time, incidents have reduced by a remarkable 35 per cent – meaning fewer accidents, injuries and lives lost.

East Oxford Green Party councillors, Oxford City Council