[OSM-talk] can your yournavigation support inter-island routing

Lambertus osm at na1400.info
Sat Dec 6 10:55:10 GMT 2008


I have trouble remembering if Gosmore currently supports the maxspeed 
tag. But if it does then that tag could be 'abused' to give Gosmore a 
realistic hint about the traveltimes of ferry's. We could set the 
default for ferry's higher to (say 20km/h) and let the maxspeed 
represent the time it takes to take the ferry route.

Nic Roets wrote:
> Hi Bernt,
> 
> The default parameters for gosmore is that a ferry travels at 3 km/h
> and there is currently no way to override the parameters for specific
> object (It's not yet perfect !). The 3km/h allows for the time it will
> you will need to wait for the ferry to arrive, embarking, traveling
> and disembarking i.e. 3 hours for the ferry ride in question. You may
> well say "I'll plan my day so that I arrive at the scheduled departure
> time", but then you won't be using gosmore.
> 
> Selecting "shortest" reveals that there is some problem with the
> oneway service roads in that area, because reversing the route or
> changing to bicycle or foot works.
> 
> --
> The English channel ferry routes looks OK:
> http://www.yournavigation.org/?flat=51.127581&flon=1.332441&tlat=50.966031&tlon=1.859529&v=foot&fast=0&layer=mapnik
> If I slightly modify the route, gosmore gives up with no data problem.
> It does this in order conserve RAM (there may also be a bad hash
> function in the mix...). (It's not yet perfect !)
> 
> The Channel Tunnel is tagged
>     * tunnel: yes
>     * railway: rail
>     * name:nl: Kanaaltunnel
>     * created_by: Potlatch 0.10c
>     * maxspeed: 160
>     * name: Channel Tunnel
>     * tracks: 2
>     * source: interpolation
>     * layer: -4
> Can we tag it with motorcar:yes foot:yes bicycle:yes ? That in itself
> will not be enough, but the changes to gosmore will eventually follow.
> 
> 
> 
> On Fri, Dec 5, 2008 at 1:16 PM, Robert (Jamie) Munro <rjmunro at arjam.net> wrote:
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>> Nic Roets wrote:
>>> Yes.
>>> http://www.yournavigation.org/?flat=52.96331&flon=4.76825&tlat=53.0023&tlon=4.78954&v=motorcar&fast=1&layer=mapnik
>>>
>>> It's the slowest form of transport :
>>> <routing bicycle="3" foot="3" goods="3" hgv="3" motorcycle="3"
>>> motorcar="3" psv="3"/>
>> It won't take the Channel Tunnel, or any UK - Mainland Europe ferries yet:
>> http://www.yournavigation.org/?flat=50.938668&flon=1.903311&tlat=51.176453&tlon=0.844442&v=motorcar&fast=1&layer=mapnik
>>
>> Is this because the database is partitioned or something?
>>
>> Robert (Jamie) Munro
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> 
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