[HN Gopher] Transforming OpenStreetMap into thick roads and inte...
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Transforming OpenStreetMap into thick roads and intersections
Author : dabreegster
Score : 166 points
Date : 2021-09-17 17:18 UTC (5 hours ago)
(HTM) web link (a-b-street.github.io)
(TXT) w3m dump (a-b-street.github.io)
| dabreegster wrote:
| A/B Street is an open-source traffic simulator that lets you edit
| roads and intersections, based on OpenStreetMap data. But to even
| do that, first we have to geometrically represent the
| transportation network in great detail. This is a second deep-
| dive into how things work.
| dabreegster wrote:
| And in case you're interested how the traffic simulation part
| works in detail, but missed yesterday's post:
| https://news.ycombinator.com/item?id=28553654
| modeless wrote:
| You can play right in your browser!
| http://play.abstreet.org/0.2.58/abstreet.html What a cool
| project!
| takk309 wrote:
| I am a professional traffic engineer and I build micro-simulation
| models for most of the projects I am involved with. I can say
| that compared to software that is used in industry (PTV Vissim,
| PTV Vistro, and Trafficware Synchro) it looks like A/B is a
| reasonable toy model that can get pretty close to the real thing.
| I think it is great that software exists at a level for
| individuals without huge budgets to be able to build and play
| around with traffic networks. Automating the intersection setup
| goes a long way toward this type of tool being accessible to the
| lay person. All that being said, I think the limitations of any
| model are important to understand when interpreting the outputs.
| I can take any model and make traffic flow or decrease the delay
| per vehicle, that doesn't mean my results are realistic.
|
| Keep up the work, this is an awesome tool and I hope it can get
| to the point where it can easily help inform people about traffic
| design and simulation.
| anigbrowl wrote:
| What kinds of feedback does your profession care about? I am
| constantly frustrated as a pedestrian with the traffic flow and
| signal timing problems in my area but I feel like it's
| pointless to submit a complaint to my local municipality
| because my anecdotal data points will probably be disregarded.
|
| I'm not very good at nor patient for trying to do neighborhood
| people organization and go around in circles with City Hall for
| 5 years (as has been the case with other neighborhood things
| like park use etc. that I have previously been involved in).
| But I am tried of losing about 5-6 hours a year to excess wait
| times at intersections despite trying to avoid the slowest
| crossings.
| aresant wrote:
| Years back as OSM was fading and the v1.0 of mapbox started
| rolling out my pedestrian view of the space was that we were
| seeing the endgame unfold
|
| It's insane to see the levels of depth still to plunge - this is
| incredible documentation and a very cool project
|
| PS - I'd upvote twice if I could for incorporate of cthulhu
| mythos!
| dabreegster wrote:
| Just this morning I came across new work from the Berlin OSM
| community: https://supaplexosm.github.io/strassenraumkarte-
| neukoelln/?m... The end-game isn't in sight. We (data consumers
| of OSM) are just getting started.
| Freak_NL wrote:
| Supaplex did supplement their map with open data from the
| municipality though for the street outlines as far as I
| understand (I've asked), so it's not 100% OpenStreetMap data
| used there.
|
| Totally awesome and inspiring nonetheless though.
| dabreegster wrote:
| Right, from
| https://supaplexosm.github.io/strassenraumkarte-
| neukoelln/po... (translation https://translate.google.com/t
| ranslate?sl=auto&tl=en&u=https...), there was an extra curb
| data-set used. I've actually found a few of these
| (https://a-b-
| street.github.io/docs/tech/map/geometry/index.ht...), so
| the approach is maybe repeatable.
|
| Regardless, the design choices and color scheme are
| something I would love to adapt.
| RicoElectrico wrote:
| You can definitely map curbs in OSM if you have high
| resolution imagery:
| https://wiki.openstreetmap.org/wiki/Key:area:highway
|
| Do not expect however mainstream data consumers to support
| it ;)
| Andrew_nenakhov wrote:
| What to you mean, "OSM was fading"? When?
| reportingsjr wrote:
| I'm also curious about this. If you look at the number of
| users, number of edits, etc then openstreetmap looks like it
| is on a rocket trajectory.
|
| More and more corporations are putting significant amounts of
| energy towards improving openstreetmap as well, drastically
| improving overall quality.
| WilTimSon wrote:
| It's scary to think such a great project could have
| perished at some point in its infancy. It's not perfect yet
| but it's an incredible resource and alternative to GMaps.
| toomuchtodo wrote:
| This is the coolest project I've seen in a long time. I cannot
| wait to see how this evolves and scales up.
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(page generated 2021-09-17 23:00 UTC)