That Shouldn't Be Possible™ coverage extended to Benelux

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That Shouldn't Be Possible™ coverage extended to Benelux

Robert Scott
Goedenavond.

(there - that should mask my linguistic failures enough for me to fall back into english now)

My GPS trace analyzer, That Shouldn't Be Possible™ has recently extended its reach beyond the british isles to cover benelux too.

Its purpose? To accept a GPS trace of a drive/cycle you've gone for, analyze the journey against the routable OSM database and, if appropriate, say "That Shouldn't Be Possible". Used like this, it can find quite a lot of routing problems or road segments missing from the database.

It can also be used to take the hard work out of checking the OSM database against your trace after a long journey by flagging up sections that don't quite agree with OSM.

Not quite sure whether you've got that complex junction interlinked and tagged right? Have a gps trace or two that traverses it? That Shouldn't Be Possible might be able to help you.

An (extra special dutch) example analysis result can be seen here[1]: I've left a nice great big error (visible as a spike in the plot) in the middle of it as an example where the trace seems to traverse what's marked as a path.

I've written a lot more about it on the wiki[2], so I'm not going to duplicate all that blather here. It's still in what I would call a prototype stage, but it works surprisingly well for "motorcar" traces (less so for bicycle so far, though I would say that's largely the fault of OSRM's bicycle profile). Even so[3] I encourage mappers to try it out[4] on one of their traces.


robert.

[1] http://ris.dev.openstreetmap.org/tsbp-proto/779918/2/2/
[2] http://wiki.openstreetmap.org/wiki/That_Shouldnt_Be_Possible
[3] Especially so - I need testers.
[4] http://ris.dev.openstreetmap.org/tsbp-proto/

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Re: That Shouldn't Be Possible™ coverage extended to Benelux

Gertjan Idema
Goedemorgen Robert.

That's a great tool you built!
From now on I'll have to pay attention where I ride my bike ;-) As you might know, dutch cyclists ride their bike everywhere no matter whether it should or shouldn't be possible.
But we (OSM mappers) always stick to the rules of course, so for us It's a wonderful addition to our toolbox. 

Thanks for sharing this with us.

Gertjan Idema


On Thu, 2013-11-21 at 21:44 +0000, Robert Scott wrote:
Goedenavond.

(there - that should mask my linguistic failures enough for me to fall back into english now)

My GPS trace analyzer, That Shouldn't Be Possible™ has recently extended its reach beyond the british isles to cover benelux too.

Its purpose? To accept a GPS trace of a drive/cycle you've gone for, analyze the journey against the routable OSM database and, if appropriate, say "That Shouldn't Be Possible". Used like this, it can find quite a lot of routing problems or road segments missing from the database.

It can also be used to take the hard work out of checking the OSM database against your trace after a long journey by flagging up sections that don't quite agree with OSM.

Not quite sure whether you've got that complex junction interlinked and tagged right? Have a gps trace or two that traverses it? That Shouldn't Be Possible might be able to help you.

An (extra special dutch) example analysis result can be seen here[1]: I've left a nice great big error (visible as a spike in the plot) in the middle of it as an example where the trace seems to traverse what's marked as a path.

I've written a lot more about it on the wiki[2], so I'm not going to duplicate all that blather here. It's still in what I would call a prototype stage, but it works surprisingly well for "motorcar" traces (less so for bicycle so far, though I would say that's largely the fault of OSRM's bicycle profile). Even so[3] I encourage mappers to try it out[4] on one of their traces.


robert.

[1] http://ris.dev.openstreetmap.org/tsbp-proto/779918/2/2/
[2] http://wiki.openstreetmap.org/wiki/That_Shouldnt_Be_Possible
[3] Especially so - I need testers.
[4] http://ris.dev.openstreetmap.org/tsbp-proto/

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