Opened 9 years ago

Last modified 9 years ago

#3129 new enhancement

Strange recommended cycle route

Reported by: Tommi Komulainen Owned by: nroets@…
Priority: major Milestone:
Component: gosmore Version:
Keywords: Cc: saerdnaer

Description

Going west on Kensington Road routing engine wants to take a strange detour to Hyde Park Gate which adds four turns and crossing one intersection. Only happens with recommended cycle route.

http://nroets.dev.openstreetmap.org/demo/index.html?lat=51.50132&lon=-0.18109&zoom=18&markers=!51.50145,-0.17997!51.50135,-0.1822&v=bicycle&fast=1

Change History (3)

comment:1 Changed 9 years ago by openstreetmap@…

Type: defectenhancement

Note that the purpose of 'Recommended' is to provide a good balance between travel time, distance, safety and comfort to an average person. I guess you and me are aggressive cyclists who don't mind cutting through traffic and we are not really the intended audience.

I want to add code that inspects each junction and add penalties for unnecessary turns, but my first attempt created more "hitches" than it resolved.

comment:2 Changed 9 years ago by Tommi Komulainen

Maybe I can manage traffic better than average person, but that doesn't mean I enjoy it. I still prefer slightly longer routes that are quieter or have less turns.

Anyway, I just saw that detour as part of longer route and it felt the routing engine was too eager to take it for anyone's tastes. Come to think of it, in a short trip such as this one the recommended route would actually be the better one almost always as the detour makes the whole trip significantly safer - however as part of a longer trip the improvement is insignificant and (IMO) cancelled by the extra turns and junction.

Not an easy problem to solve I imagine.

comment:3 Changed 9 years ago by saerdnaer

Cc: saerdnaer added
Note: See TracTickets for help on using tickets.