Won't work in the UK as there are plenty of cases where you have to give way and make a proper turn in order to stay on the same road name and/or ref. The concept even has a name - TOTSO which means "Turn Off To Stay On".
http://en.wikipedia.org/wiki/User:Martinvl/TOTSO You cannot reliably infer from the geometry and name/ref which road (or lanes) has to give way. The only way to improve the navigation instructions is by giving hints. This is not a routing question - nobody here is discussing which road is the best way to MyTown - it's about how you present the router's choices to the user. //colin On 2015-04-27 16:07, Marc Gemis wrote: > As long as the name (or the ref/int_ref) of the street remains the same, I > think the router should be able to give other messages than "turn right". > There is no need for an additional relation IMHO. > > m > > On Mon, Apr 27, 2015 at 12:06 PM, Lester Caine <les...@lsces.co.uk> wrote: > >> On 27/04/15 10:45, p...@trigpoint.me.uk wrote: >>>> == Question == >>>>> >>>>> Could we benefit from a new route relation? For example a >>>>> "route_continues" >>>>> relation? Would others find this useful? >>>>> >>> And more importantly, if you need to turn off onto the minor road going >>> straight ahead it remains 'silent'. >>> I have occasionally used a through_route relation in these cases, but lack >>> of support from routers does make it seem futile. >>> Much like the via way relation, that one is so needed too. >> >> Why do I find that confusing? >> >> Currently in general the directions ignore corners even if there are >> roads going off those corners. The complaint is about 'extra' directions >> where the corner is actually the main road and the straight on branch is >> the turning. If the directions remain silent one would in some >> conditions get confused so the safe thing to do is announce both? >> >> The correct wording of the the directions should be perhaps 'road bares >> right' and 'go straight on' rather than 'turn right' but that does need >> the perhaps missing "through_route" information? As I said, the >> inclusion of road names in OSMAND while useful at times does get >> similarly annoying when a 'continue on Axxx' would suffice. In this case >> the road id provides the "through_route" information ... one remains on >> the same road ... and the straight on road has a different one which may >> just be 'minor road'. >> >> -- >> Lester Caine - G8HFL >> ----------------------------- >> Contact - http://lsces.co.uk/wiki/?page=contact [1] >> L.S.Caine Electronic Services - http://lsces.co.uk [2] >> EnquirySolve - http://enquirysolve.com/ [3] >> Model Engineers Digital Workshop - http://medw.co.uk [4] >> Rainbow Digital Media - http://rainbowdigitalmedia.co.uk [5] >> >> _______________________________________________ >> talk mailing list >> talk@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk [6] > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk [6] Links: ------ [1] http://lsces.co.uk/wiki/?page=contact [2] http://lsces.co.uk [3] http://enquirysolve.com/ [4] http://medw.co.uk [5] http://rainbowdigitalmedia.co.uk [6] https://lists.openstreetmap.org/listinfo/talk
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