Soldato
In the US, state-by-state (i.e. the numbers reset each time you cross a state border) the exits on the interstate correspond to the mileage on the highway. So if you cross a state border you'll soon seen the 'mile 1' board. Then if there is an exit at mile 3, it will be called Exit 3.
The advantages of this system are pretty simple - firstly you can add more exits in-between existing ones without resorting to confusing 'Junction 32A' style lettering, (sometimes in cities where you have two exits within a mile you get the A/B letters coming up, but you know they will be v.close together).
Furthermore, you can easily tell how many miles it is until you need to find your exit, because every hundred yards there is a post by the roadside with the mileage written on it.
Would be a logistical nightmare to adopt it here, but I wonder why we didn't think of it first.....
The advantages of this system are pretty simple - firstly you can add more exits in-between existing ones without resorting to confusing 'Junction 32A' style lettering, (sometimes in cities where you have two exits within a mile you get the A/B letters coming up, but you know they will be v.close together).
Furthermore, you can easily tell how many miles it is until you need to find your exit, because every hundred yards there is a post by the roadside with the mileage written on it.
Would be a logistical nightmare to adopt it here, but I wonder why we didn't think of it first.....