Diversion signage or lack of?

Whatever signage you have explaining the A34 closure and diversions to be read as you travel north towards the Botley interchange is still not adequate to prevent people from driving east along the Botley Road (A420) to try and get through to Oxford despite its closure at the railway station. I live in the final side street before the railway and yet again we are experiencing streams of cars coming down the street with some drivers telling us that they are following a diversion. I'm loath to believe what I've been told, that the A34 signs say the diversion is through Oxford, something not currently possible.

The local authority say that the management of this end of Botley Road is the reponsibility of Kier, the contractors for the railway works. They are unresponsive, or say that motorists are unwilling to comply with their staff's information.

I've ceased to care about who is in theory responsible but am very concerned that this is not ony unpleasant and inconvenient for locals and drivers, but unsafe at times, as some motorists are so frustrated they are driving aggressively and much too fast in our narrow residential street.

PLEASE PLEASE PLEASE can something be done to make this diversion work better.