[mkgmap-dev] Directionality of stop signs

Thu Mar 23 00:24:48 GMT 2017

There is an ongoing discussion on the Tagging list that is trying to
determine how to tag the directionality of stop signs and yield signs as
well as traffic_signals. The arguments is that if a highway=stop is placed
on a node that is at the intersection of two ways, it applies to all
vehicles crossing that node. However, if the stop sign applies to only one
of the ways at an intersection, the highway=stop node must appear on the
proper way at a slight distance from the actual intersection. How does a
routing engine determine whether it's approaching from the "front" of the
sign, in which case a stop penalty should be calculated, or from the other
direction, in which case the sign can be ignored?

Does anybody know whether the Garmin routing algo even considers stop signs?

Dave

-- 
Dave Swarthout
Homer, Alaska
Chiang Mai, Thailand
Travel Blog at http://dswarthout.blogspot.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.mkgmap.org.uk/pipermail/mkgmap-dev/attachments/20170323/3c1110ca/attachment.html>