New road to Le Mans, what Number is it?

[final_edition]

I have been told about the new road to LM.
We are travelling from Calais in the morning. Does anyone know the road number and where we pick it up from, does it bypass the old N138?
FE

[wrightyrs]

Don't know what its called but try one of the route finder AA or RAC maybe.

I know to get on it you have to head past the old N138 entrance in a westerly direction and get on it further up.

[Alex@POD]

Do you mean the A28? any route planner website will tell you, plus there are loads of threads about it on here...