[OSM-talk] Removing redundant routing instructions

Rob Nickerson rob.j.nickerson at gmail.com
Sun Apr 26 11:35:57 UTC 2015

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 ==


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?


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