[Talk-us] Relations, cycle routes, shapefiles

[Nathan Edgars II]

On 2/3/2011 11:20 PM, Paul Johnson wrote:
> If it's a bicycle boulevard, it should have it's own LCN relation (even
> if it does have one member), as it would also qualify as a route.  And
> the way will probably be split up many times over it's existence as turn
> restrictions get added, ways get split to represent medians, other
> routes sharing ways get added, etc.  Relations are a tad more resilient
> in the long run.

Not really - when a way is split, the old tags are automatically applied 
to both new ways, but a relation is applied only if the editor knows 
about the relation. It's very easy to download a large route relation in 
JOSM and all its elements and split a way at a point where it overlaps 
another route without realizing that other route exists.