Another hint is to use a couple of vehicles like a bus and a truck, and work it out on that basis. Remember that town streets are often wider than rural ones. The road I live in is one way and is still the same width as when it was completed in 1874. currently with cars parked on both sides you can normally get an 8 wheel dustcart down the middle.
Hope this is of some assistance.
Regards
John
Hope this is of some assistance.
Regards
John