Add questions here
- Ah, (my thought’s from Mustard’s introduction:) so by putting
routing on OSM.org, OSM has made a conscious decision to go beyond
just being a data creator. (Good.).
- Yantisa: Indeed, and I would love to see OSM communities use and
develop routing (engine&data) that is best suited for their
area.
- Funny route choice: avoid all police stations.
- Yantisa: yes, true that! It is possible to make a route that
avoid all police stations, especially all police station already
well mapped ;)
- Are the pedestrian ways and sidewalks well mapped on the area you
evaluated? It’s good to consider the connectivity of pedestrian ways
to streets on this study.
- Yantisa: It depends, in Jakarta metro areas, the pedestrian is
currently being well developed and tactile paving is starting to
get common. In terms of mapping, these sidewalks is far from
complete. In my scenario 2 talk, some of the sidewalk have been
mapped (https://overpass-turbo.eu/s/VMN). Unfortunately as you
move outwards, pedestrian and sidewalks are not that well
developed and not yet mapped.
- How does OSRM prioritize in terms of road class? One wouldn’t want
to find themselves in dust tracks because it is a shorter distance.
- Yantisa: Just a disclaimer that I am not really familiar with
OSRM, I do quite familiar with Graphhopper (GH). In GH, the
higher a road classification it gets more priority. So motorway
get the highest down to tracks as the lowest. More about road
classification in OSM:
https://wiki.openstreetmap.org/wiki/Key:highway
- Are crime areas a concern?
- Yantisa: As far as I know, in default, the routing engine did
not put it into consideration. Yet, it is fully possible for
routing engine to avoid certain areas in their routing
calculations.
- Any specific attributes that we need to put into, to improve route
for all of three route provider?+2
- Yantisa: Yes, road classification is the first one because it
gives information to routing engine on which road to prioritize.
Other tags will be quite useful, such as maxspeed, oneway or
access restriction. Here is a good page that give more
information:
https://wiki.openstreetmap.org/wiki/OSM_tags_for_routing
- Does Gojek (your company) use OSM for routing?+1
- Yantisa: we are currently still evaluating to adopt OSM and
several other data sources as well as routing engine, stay tuned
for any updates ;)
- How does OSRM collect route data? is it done in participatory?
- Here are the tags that OSRM uses:
https://taginfo.openstreetmap.org/projects/osrm#tags -maning
- Take note, `highway=track` is not used by OSRM. -maning
- Yantisa: thanks a lot, Maning! Ah interesting, since
Graphhopper is still using track in its routing
calculations.
- Any opinions on Valhalla?
- Yantisa: Initially I want to include Valhalla in my comparison
but because they did not have easily accessible web demo for
routing thus I did not continue. Mapzen does have several
interesting technology, Valhalla is one of them. Since Valhalla
acquisition by Mapbox, I did not hear any more updates about it
in OSM-talk or OSM forum.
Yantisa: Thanks everyone for your questions!