Originally Posted by
Prophead
4.31 Because of the early stage of development, there is some uncertainty about surface access costs, which are subject to more detailed development and, for example, choices over precise routes.
It certainly appears, based on the published plans to date, that not a lot of thought has been given to the implications of completely severing the A4 Colnbrook bypass, made necessary by moving the proposed R3 line further south to avoid compromising the M4/M25 interchange.