There already is a "through_route" relation, to show the path of the
through route. It might not be well documented, but it is used (I
believe)by mkgmap.
There was a proposal, which was eventually rejected:
http://wiki.openstreetmap.org/wiki/Proposed_features/through_route
IMHO it was rejected as it was seen as a hint for the router, not as an
aid to navigation, and people don't understand the difference.
On 2015-04-26 13:35, Rob Nickerson wrote:
> Hi all,
>
> In the UK (particularly in rural areas) it is common to find a road that
> turns 90 degrees to the left or right without a junction (that is the road
> just continues and white lines mark it as such). Meanwhile another road may
> come in from the other side with a 'give way' style junction.
>
> Although the road continues round the bend "SatNav" systems often think it is
> a junction and tell you to "turn right/left in 100 yards/meters".
>
> I wonder whether it is possible to indicate this in OpenStreetMap so that
> routing engines can omit this redundant instruction.
>
> == Example picture ==
>
> https://drive.google.com/file/d/0B6J5ZA1hu93bZmx2NTIxaHdfMUE/view?usp=sharing
> [2]
>
> In the example Oban Road [1] turns to the right to become the northern
> section of Sydnall Road. All main routers tell you to turn right. In my
> opinion this is a redundant instruction (or could be better worded). I've
> tried to add extra nodes so that the road naturally bends but the main
> routing engines still tell you to "turn".
>
> == Question ==
>
> Could we benefit from a new route relation? For example a "route_continues"
> relation? Would others find this useful?
>
> Regards,
> Rob
>
> [1]
> http://www.openstreetmap.org/directions?engine=osrm_car&route=52.45362%2C-1.48598%3B52.45341%2C-1.48944#map=18/52.45332/-1.48771&layers=Q
> [3]
>
> _______________________________________________
> talk mailing list
> talk@openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk [1]
Links:
------
[1] https://lists.openstreetmap.org/listinfo/talk
[2]
https://drive.google.com/file/d/0B6J5ZA1hu93bZmx2NTIxaHdfMUE/view?usp=sharing
[3]
http://www.openstreetmap.org/directions?engine=osrm_car&route=52.45362%2C-1.48598%3B52.45341%2C-1.48944#map=18/52.45332/-1.48771&layers=Q
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