KAkarussell·Oct 20, 2022
If you lack the source data you might get them from official feeds. A few years ago I started to collect them: https://github.com/graphhopper/open-traffic-collection
In Traff: A universal format for live traffic informationgraphhopper
open-traffic-collection
OPEN SOURCE2018–2022
graphhopper / open-traffic-collection
open-traffic-collection
Collection of open data resources for traffic information
4Distinct people
7Mentions
0Explicit recommenders
461GitHub stars
What to know before exploring
What it is
Collection of open data resources for traffic information
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
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HN mentions by year7 dated mentions
Observed mentions: 2018-01-02 21:17:54 UTC to 2022-10-20 14:14:54 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 4 | 0 | 4 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 2 | 0 | 2 |
What Hacker News says
7 sourceshttps://github.com/graphhopper/open-traffic-collection may be of help.
I would think it would be a challenge to get useful data from such a source even if resolution were high enough. That nice low traffic road may have been photographed in the weekend, outside traffic hours, on a national holiday, because of a road black a kilometer away, etc.
In Video: Why Open Data Matters for Cycling: Visualizing a Cycling Citycool open data! (I used it as an answer here: https://opendata.stackexchange.com/q/1767/1511)
for other traffic related datasets, check out this list: https://github.com/graphhopper/open-traffic-collection
and for "borrowing" the live data from TomTom, check out this mini tweet thread (from me): https://twitter.com/philshem/status/1241739025624567813
In Largest multi-city traffic dataset availableThat would be great. It looks like the graphhopper project (another OpenStreetMap-based routing service) have done some research there:
https://github.com/graphhopper/open-traffic-collection
In Free, open and collaborative routing serviceIf they have their own fleet they can generate their own (historic) traffic data e.g. via Map Matching and use an open source routing engine like GraphHopper with OpenStreetMap data. (disclaimer: I'm one of the developers of GraphHopper.)
It is unclear to me whether their current practice is in harmony with the Google Maps TOS. For some places there are also open traffic data sources: https://github.com/graphhopper/open-traffic-collection
In How We reduced our Google Maps API costHere is a collection I started some time ago: https://github.com/graphhopper/open-traffic-collection
In How We reduced our Google Maps API costI doubt that traffic data was their main issue ... but anyway ... yes, traffic data is a difficult topic. And yes, the state of open traffic data is bad:
https://github.com/graphhopper/open-traffic-collection
But no, although Google and Apple (and also Mapbox!) do not give a away their traffic data, there are still three sources for world wide traffic data:
TomTom, HERE and inrix. All acquire their data via external software companies or automotive companies (or whatever) including their measurement units into their products.
Mapzen was starting their open traffic data project and so we at Graphhopper were hoping they would solve this issue in the next years, but now, obviously they won't:
https://twitter.com/mapzen/status/940710887068860417
https://github.com/opentraffic/otv2-platform
In Mapzen Shutdown