turtle
A lesser distance, say half, wont always take half the time. Traffic density and speed may affect you. Is turtle the speed at which you drive when going along main south road at morphett vale because the expressway is running in the opposite direction, or is it the speed at which you travel between adelaide and the begginging of the expressway?
No such Problems when traveling on the south eastern freeway as the start of it is ten minutes drive from the CBD and it runs both directions.
BTW you will have to tell me the route from adelaide to aldinga which is only 42kms. As the crow flies it is 39km's so you must have some good short cuts!
Take it easy mate.GG.