Slight route differences between Sat Nav devices

David Rudgley

Is there a difference the way a route is calculated between Sat Navs? Multiple riders used the identical route edited in MRA, edited as TomTom, compared with HERE & Open Street maps, everything was checked and double checked, differences and errors were corrected

While on the TomTom Rider 550 user was directed on an unnecessary detour while other users (older TomTom Rider, Garmin Zumo XT and TomTom GO) were routed faithfully to the MRA route.

Is there a setting on the TomTom rider 550 that could have meant that it interpreted the route differently? Why were they the only rider that was sent on this detour?

Nick Carthew

Hi @David-Rudgley Yes. there are individual settings for route preferences; for instance: Avoid motorways, toll roads etc etc. Theses of course should all be turned off.

Con Hennekens

@David-Rudgley, What Nick says, plus different versions of the TomTom map (or any map) can lead to different results.

Hans van de Ven MRA-Master

And differences between the map versions in the Garmin Zuma’s and there prefences

David Rudgley

I guess the only solution is forcing the route by adding more and more shaping waypoints.

Reinhard-32

Yes, I use the Toolkit, Expand function for it (as a Gold member)

Nick Carthew

@Reinhard-32 said in Slight route differences between Sat Nav devices:

Yes, I use the Toolkit, Expand function for it (as a Gold member)

When you use the expand function, always check the new waypoint positions as sometimes these can be added close to roundabouts, junctions, or bridges. The new waypoints are easy to find in the waypoint list as they will be titled waypoint rather than having a street address.

Steve Lynch

And if you are a bit OCD like me and don’t like seeing a Waypoint named “Waypoint” rather than the Road Name, then just move the waypoint a tiny bit (Zoom fully in) and it will pull in the Road name etc.

Nick Carthew

@Steve-Lynch said in Slight route differences between Sat Nav devices:

And if you are a bit OCD like me and don’t like seeing a Waypoint named “Waypoint” rather than the Road Name, then just move the waypoint a tiny bit (Zoom fully in) and it will pull in the Road name etc.

I share your OCD pain