[mkgmap-dev] Option "link pois to ways"

Sun Feb 21 23:56:43 GMT 2016

So, the number of traffic_signals encountered on one route vs another route
isn't even a factor in mkgmp routing? I have been adding traffic_signals to
my workload for the past year in hopes it would improve routing accuracy.

How then does routing get calculated? On my Garmin there is a choice for
"fastest" vs. "shortest" routes. Usually this choice doesn't make much
difference in the overall time involved for a traverse along a route and I
always assumed  it was because here in Thailand so few of our highways have
maxspeed tags. How are these two routing choices handled by makgmap?

Sorry for the extra questions but I am curious to know these things.

Cheers,
Dave

On Mon, Feb 22, 2016 at 12:23 AM, Jakob Mühldorfer <mail at jmuehldorfer.de>
wrote:

> Oh, allright.
> Maybe if you have time some day, you could look into it again. I think
> there are some use cases.
> One example where the OSRM traffic light penalty for example seems to have
> chosen the clever way around the traffic light:
>
> https://www.openstreetmap.org/directions?engine=osrm_car&route=51.05581%2C13.72190%3B51.05522%2C13.71881#map=19/51.05541/13.72034
>
> Regards
> Jakob
>
>
> Am 21.02.2016 um 18:19 schrieb Gerd Petermann:
>
>> Hi Jakob,
>>
>> I think this cannot be done with rules, it requires new java code.
>> I thought about this a while ago and stoped because I doubted that this
>> would improve routing.
>>
>> Gerd
>>
>> ________________________________________
>> Von: mkgmap-dev-bounces at lists.mkgmap.org.uk <
>> mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Jakob Mühldorfer <
>> mail at jmuehldorfer.de>
>> Gesendet: Sonntag, 21. Februar 2016 17:59
>> An: Development list for mkgmap
>> Betreff: Re: [mkgmap-dev] Option "link pois to ways"
>>
>> Hi Gerd,
>>
>> this would be the best solution I think.
>> So far I found a rule that lowers the speed for the complete road with
>> the traffic light, do you have one that splits it and adds a lower speed
>> only on a part, like you said?
>>
>> Thanks
>> Jakob
>>
>> Am 21.02.2016 um 17:57 schrieb Gerd Petermann:
>>
>>> Hi Jakob,
>>>
>>> the current code ignores nodes with highway=traffic_signals.
>>> If I got you right you want to split a road maybe 30 m before the node
>>> with
>>> highway=traffic_signals and 30 after and set a lower road-speed value
>>> for that 60m part?
>>>
>>> Gerd
>>>
>>>
>>>
>>> ________________________________________
>>> Von: mkgmap-dev-bounces at lists.mkgmap.org.uk <
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Jakob Mühldorfer
>>> <mail at jmuehldorfer.de>
>>> Gesendet: Sonntag, 21. Februar 2016 17:31
>>> An: Development list for mkgmap
>>> Betreff: [mkgmap-dev] Option "link pois to ways"
>>>
>>> Hi,
>>>
>>> one more question I was not able to figure out from documentation or
>>> source.
>>> When the option "link pois to ways" is used, does it automatically
>>> process traffic signals in a way that adds a time penalty for routing
>>> through them in the map data.
>>>
>>> Thanks for help on that
>>> Jakob
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk
>>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>> _______________________________________________
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>>> mkgmap-dev at lists.mkgmap.org.uk
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>>>
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>
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-- 
Dave Swarthout
Homer, Alaska
Chiang Mai, Thailand
Travel Blog at http://dswarthout.blogspot.com
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