AS a regular user of the Southern Distributor Road both day and night, I am surprised that the cause of accidents there has not been identified. In my opinion, the cause is neither design of the road nor drivers’ lack of due care.

The white lines painted just inside the kerb give drivers a false position of the kerb, resulting in the driver clipping the kerb which is evident by the many rubber tyre marks on the kerb. Cars get away with it, but for lorries with a high centre of gravity, it causes overturning. Whoever authorised these lines is responsible, which, for the record, I have never seen anywhere else in the UK.

Derek Parks, The Coldra, Newport