[Talk-us] Problems with Tiger railroad data

[Alex Mauer]

Russ Nelson wrote:
> Sometimes you have parallel tracks owned by different railroads
> running through the same right-of-way.  Those should definitely not be
> merged.

Sorry, but at some (low) zoom levels it's just not possible to avoid
merging them.  You tell me how to render this clearly:
http://www.informationfreeway.org/?lat=44.51313782651155&lon=-89.55389522707162&zoom=17&layers=B000F000F
at zoom 13 (or zoom 17 for that matter) without merging some of them.

Again, I agree that the tracks in the data itself should not be merged.
 But for rendering purposes, there's just some times that you're not
going to be able to render every track individually. Even with a
single-pixel line per track, with a single pixel line between tracks.

-Alex Mauer "hawke"