Chilworth Reserve and the M2 Widening Project

The RTA and Transurban intend to build a construction camp under the M2 viaducts over Chilworth Recreation Reserve. They will use this while they fill in the gap between the two viaducts and extend the south viaduct out to convert the present M2 into one ten lane highway (one bus lane, three traffic lanes, and a bike lane, each way).
The M2 Upgrade Project has responded to queries about how construction traffic will get to this camp. The BCCT suggested they use the original 1990's construction path between the M2 and the golf course. The M2 Project responds that this "only allows access in - it does not allow access out of the compound area. The existing informal access off Orchard Road has a corridor of Blue Gums, and the potential impacts surrounding this area of vegetation is currently being considered."
An alternative exit path that was at one stage being proposed was to push a complete new road in off the end of Allerton Road, down through the lovely bush areas south of the motorway. It would seem that such an action would impose far more serious and permanent destruction of the park.
Survey and other project vehicles have over the last six months or so broadened that 'informal access' path from Orchard Road into a full width bush car track. Adapting it further to take construction traffic seems a small additional sacrifice compared to the devastation that would result from a complete new road driven in from the eastern end.