[OSRM-talk] "Forward-only" constraint for map-matching

2020-03-01 Thread Alex R
Hi everyone, I was wondering whether the map-matching functionality can be tweaked to ensure that new matches can only occur "downstream" of the previous ones. Let me illustrate what I mean: - imagine a V-shaped road - the vehicle moves on this curve from left to right - there's a station just a

Re: [OSRM-talk] Map matching for live data-streams, one point at a time

2020-03-01 Thread Alex R
Hi everyone! > our next step is to figure out how to produce a correct PBF file that contains only the roads that are a part of the transport grid. For the benefit or archaeologists researching this mailing list archive, here is a summary of how we accomplished this: We use osmium to extract the

Re: [OSRM-talk] Map matching for live data-streams, one point at a time

2019-12-31 Thread Alex R
Hi everybody, I just wanted to report that we have successfully integrated OSRM, based on Daniel's feedback in this thread. The functionality is a part of an open source system for public transport tracking in Moldova, you can see it on roataway.md (choose a route using the bottom-right

Re: [OSRM-talk] Map matching for live data-streams, one point at a time

2019-12-06 Thread Alex R
Thank you for the fast, detailed and reassuring response. I have some additional questions: 1. In what order must the list of coordinates be given? (i.e., http://127.0.0.1:5000/match/v1/driving/most-recent;second-most-recent;third-most-recent OR is it the other way around, and the "most-recent"

[OSRM-talk] Map matching for live data-streams, one point at a time

2019-12-06 Thread Alex R
Hi, I ask for advice in using OSRM with a live stream of data. The examples I've seen relate to tracks that can be passed into OSRM and it will apply "map matching" to snap all points to the roads, in one move. My scenario is different, I am trying to understand whether it is feasible with in