[mkgmap-dev] [PATCH v1] Synthesise cycleways that allow reverse bicycle routing on oneway streets

Wed May 27 13:32:57 BST 2009

I think this is just one of those cases, where you notice that Garmin 
map format simply does not allow to create a map that is useful for 
several usage cases. Better use a dedicated cycle-map (in which you 
would delete the oneway information in case of cycleway=opposite or 
similar).

Mark Burton wrote:
> Hi Clinton,
>
> Thanks for the feedback.
>
>   
>> I tested this last night, as there are several streets close by where
>> this applies.
>>
>> It seemed to work... mostly.
>>
>> Strange things start to happen when you are directly on the street in
>> question. It appears that my eTrex sometimes decided I was on the
>> street, and not the cycleway, and sent me backwards.
>>
>> Conversely when I switched back to car routing, the GPS device sent me
>> (for short distances) on the cycleway.
>>
>> Things seemed to be OK when I started routing outside of the one-way street.
>>     
>
> Yes, I would expect problems if you start on or very near to one of
> these "fake" cycleways. Can't think of how to get around that.
>
> Perhaps it would be a good idea to use an option to turn this feature
> on rather than it being always active.
>
>   
>> I would like to test this further: to do so, I have to first update
>> the OSM map in my area (there are a lot of one-way streets here which
>> allow reverse-flow bicycle traffic, but I have always ignored them).
>> I'll try to report back in a few days with further real-world results.
>>     
>
> Thanks, that would be good.
>
> Cheers,
>
> Mark
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>   
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.mkgmap.org.uk/pipermail/mkgmap-dev/attachments/20090527/7818adc9/attachment.html 