Auto-Skip algorithm

Gary Clark

Since the auto-skip update, I've been running some of my local routes that are very 'tight'. My little 9 mile (14.5km) loop inside my town takes me through 14 roundabouts to simulate a curvy route. That route has 65 shaping points in 9 miles to force the route to go through the roundabouts. Also, the route takes me onto a brand new road that isn't recognized on the map when I drive the route. (offline nav is on with offline map installed) I also intentionally missed some turns to test the auto-skip function. Also, the route is so tight that the navigation gets confused when I go down and come back on a same road in order to run two of the roundabouts.

Overall, the auto-skip resolved most of the missed shaping points as I drove the route. For me, your auto-skip and easy manual skip functions make MRA the best nav app. However, I noticed the following:

When the route missed two shaping points on the new missing road (shaping points look like they are in a farm field when driving the route), the auto-skip just wouldn't skip. Even though I was driving through several subsequent shaping points, the nav would not proceed onward. I'm sure that 4 recalcs had happened but it wouldn't skip on. I eventually had to stop and manually skip 6 shaping points to get it to move on.
What I noticed is that I feel like the MRA Navigation was quicker to skip missed shapingpoints. Is it possible that it took less than 4 recalcs to skip? I didn't know about the 4 recalcs when I ran this route. If I'm driving down a straight road without side roads, it can take a long time to cause 4 recalcs. Might a timer or distance from the missed waypoint be another way to trigger the skip/recalc??? But, I will run it again now that I understand about the 4 recalcs. I now understand that I was causing the recalc count to reset each time that I manually reset a shaping point too. So, I was maybe causing my own problem that way. There are so many shaping points that I have to skip 4 in a short time frame which resets the counter four times.
In the 'down and back' section that got confused in the past, the auto-skip resolved all of the issues and the route now continues on as planned without my intervention. That one gets resolved quickly too which I don't know why.

Corjan Meijerink

@Gary-Clark Great to hear that the auto-skip worked well in most cases

1: interesting, will have a look.
2: Great feedback!
3: Sweet

Please also see this post: https://forum.myrouteapp.com/topic/4002/3-2-14-auto-skip-feedback
We'll take all feedback into consideration for improving the algorithm