[Talk-us] exit_to vs destination

[Russ Nelson]

Paul Norman writes:
 > It's not impossible - but the devil is, as always, in the details. You 
 > can obviously limit it to only cases where there is a motorway with a 
 > motorway_link branching off and no left/right tags, but it's not just that.

Thinking about all the exit_to's that I've added, the vast majority of
them could be converted without changing the value from an exit_to on
a motorway_junction into a destination on the associated
motorway_link.

And at that point, wouldn't motorway_junction be moot, since there
ought to be one everywhere a motorway and motorway_link join?

 > If that link itself then has a Y branch (e.g. to turn left or right), it 
 > will need splitting because it's unlikely both branches will lead to the 
 > same place. There are probably other cases.

If it were really possible to mechanically convert all exit_tos into
destinations then there would be no point in doing so. So don't worry
about the fact that not all of them will be converted.

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