[mkgmap-dev] Problem routing over very short roads

Thu Jun 4 09:38:44 BST 2009

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Hi Felix,

> 1. See here: 
> http://www.openstreetmap.org/edit?lat=48.084294&lon=16.296498&zoom=18
> 
> Have a look at the street running paralell to the railwaylines (name 
> Thomas-Tamussino-Straße, ref B11).
> Mappers have nicely and correctly entered the bridge. The section after 
> the bridge is only about 3m long, because after the next intersection 
> the street name changes.
> 
> On compiling, these 3m get dropped and are missing. What's even worse, 
> because the section is so short, Any autorouting wanting to go over that 
> place, crashes in Mapsource (at least it does not crash Mapsource 
> however, only route calculation stops with error).
> Here is a small screenshot of how it looks like on 20m zoom in Mapsource:
> 
> 
> I'm more than sure that there are several other places were we face the 
> same problem, which at first look seem like mappers made mistake and did 
> not connect road, but in reality it's one of those road segments shorter 
> than 3.4m getting dropped.

Err, I don't know what your problem is but this is what I get when I
download that region and display in mapsource. Routing appears to work
fine.

Cheers,

Mark

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