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OpenTrafficMap

opentrafficmap.org

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Re: OpenTrafficMap

#91

Post by maelito »

danelski wrote: post #80
maelito wrote: post #70

We need global open congestion data. At least on the european scale. It's important so that alternatives to Google Maps and Waze (Google) can emerge. To create congestion data, one needs to own an OS with location tracking, or be an international mobile network. Won't happen. [disclaimer : I work on an open source alternative to big tech's maps]

In my experience, the congestion data is not the issue: even with the split across Google / TomTom / Here / Apple / some hyperlocal alternatives, everyone seems to have reasonably good idea where the traffic jams are. Having up to date POIs is a different can of worms only solved by Google, not by some clever algo, but through the sheer brand recognition. They're the only ones that have this data fed to them by POI o…

Well, Google has the most popular OS. Tomtom is not far from being the OS of lots of cars. Here, too. It's owned by Daimler/BMW/Audi (sold for 3 billions). Apple has the second most used mobile OS.

So yes, for these huge actors, it's quite easy to create congestion data.

Re: OpenTrafficMap

#93

Post by yosamino »

maelito wrote: post #81
yosamino wrote: post #76

Earlier quoted context omitted.

That looks pretty cool - sorry to have a complaint immediately: When opening the map on Firefox/Linux zooming to like a France-size view and then not doing anything, the view keeps scrolling up and down relatively slowly, but very annoyingly. Zooming all the way out, it looks like the globe is jiggling back and forth ever so slightly, but continually. I've recently seen this happen on another mapping application ( ca…

Yes, known bug, we've discovered it recently. Here's how to unbreak the map. https://codeberg.org/cartes/web/issues/2095

Heh

> For privacy reasons we've made the planet shake a little bit

Thank you for the hint. We live in a very complex world...

Re: OpenTrafficMap

#94

Post by TKAB »

Myzel394 wrote: post #69

I don't get this at all. Is this a live view of the traffic lights, buses, and more? How do they get the data?

This is an English translation from the talk description:

Did you know that if your car supports *Car2X* via *ITS-G5*, it transmits its exact GPS position, speed, longitudinal and lateral acceleration, pedal positions, length and width, and much more—all unencrypted—up to four times per second on a 5-GHz band?

Trams in Graz also transmit this data, including their line numbers. This allows us to track the trams in real time and display them on a map.

Many traffic lights in Graz now support *C-ITS* and transmit data every second regarding the exact configuration of the lanes, the current signal status, and when the next phase is expected.

With an *ESP32-C5*, we can already receive this data from a distance of several hundred meters.

We’ll show you how we collect and process this data. On a live map, you can see (within the coverage area) trams, the color of the traffic lights and when they’ll change next, and which cars equipped with Car2X are currently driving and at what speed.

Using Grafana, we display historical data on traffic light cycles and statistics, such as wait times at crosswalks and in traffic lanes. We also give you access to the collected data for your own analysis.

To improve coverage, we need your help! We’ve built a board with *ESP32-C5* and *PoE* that lets you capture *C-ITS* packets yourself and share them with us for our open map, or process them on your own.

Re: OpenTrafficMap

#95

Post by peterp_123 »

cheschire wrote: post #77
maelito wrote: post #70

We need global open congestion data. At least on the european scale. It's important so that alternatives to Google Maps and Waze (Google) can emerge. To create congestion data, one needs to own an OS with location tracking, or be an international mobile network. Won't happen. [disclaimer : I work on an open source alternative to big tech's maps]

How would you overcome the data source trust issue? In open data collection you either fingerprint the data to ensure validity or you anonymize the data to provide security, but striking the balance between the two seems like the biggest of hurdles in an effort like this. The risk of the data being invalid seems as risky as the privacy implications in this case.

Hi, as the developer of opentrafficmap.org I can tell you that nearly all stations (traffic lights, cars, busses, trams, etc.) have a certificate, that can be validated against a trust chain managed by the EU. You can see the signature of you click "View JSON" on a tracked object

Re: OpenTrafficMap

#96

Post by goda90 »

danelski wrote: post #80
maelito wrote: post #70

We need global open congestion data. At least on the european scale. It's important so that alternatives to Google Maps and Waze (Google) can emerge. To create congestion data, one needs to own an OS with location tracking, or be an international mobile network. Won't happen. [disclaimer : I work on an open source alternative to big tech's maps]

In my experience, the congestion data is not the issue: even with the split across Google / TomTom / Here / Apple / some hyperlocal alternatives, everyone seems to have reasonably good idea where the traffic jams are. Having up to date POIs is a different can of worms only solved by Google, not by some clever algo, but through the sheer brand recognition. They're the only ones that have this data fed to them by POI o…

Idea: an open website/app that updates POI information on every known platform simultaneously. To POI owners it would be a win because it means their info is reaching more people but there's not much extra work. The hard part is spreading the word, but I don't see why an open project's donations can't go towards marketing. The marketing material can also be used to promote the existing open platforms like OSM and some of the open review websites(mangrove.reviews and lib.reviews for example), such as sending free window stickers to POI owners that say "Review us on **!".

Re: OpenTrafficMap

#97

Post by lucideer »

MrDrMcCoy wrote: post #85
antalis wrote: post #83

Earlier quoted context omitted.

The repos are there: https://codeberg.org/opentrafficmap https://codeberg.org/opentrafficmap/its-g5-receiver : "Current ordering situation (as of 2026-04-23) After the talk on Grazer Linuxtage (media.ccc.de, youtube.com) we got many responses from people also wanting to buy this receiver. We fixed a few issues of the first revision and ordered 200pcs of Revision 2. We expect the 200pcs to arrive in the first week of…

That's for a hardware receiver. It does not appear to have mobile app or API doc accompanyment or a doc on what is needed for expansion. I would imagine that there is a minimum critical mass and municipal buy-in for such devices to work. Theoretically, mobile apps would require far less barriers to start being useful.

It sounds like you have an idea/proposal for a separate (complimentary) product. It seems like a good idea - I'd like to see someone build that. But... this is not that.

Someone has some something cool here & people seem to be annoyed that they have not done something entirely different.

Re: OpenTrafficMap

#98

Post by eagleal »

maelito wrote: post #70

We need global open congestion data. At least on the european scale. It's important so that alternatives to Google Maps and Waze (Google) can emerge. To create congestion data, one needs to own an OS with location tracking, or be an international mobile network. Won't happen. [disclaimer : I work on an open source alternative to big tech's maps]

> We need global open congestion data. At least on the european scale.

Congestion data was also used to track the advancing Russian army invasion in Ukraine's urban area according to the probably sponsored articles on Bloomberg for Project Maven.

Re: OpenTrafficMap

#99

Post by xd1936 »

maelito wrote: post #75
xd1936 wrote: post #3

I haven't seen a theme on OSM data look this modern and fresh before. Beautiful color palette and iconography!

Can you try this one ? Though not as flashy, it's a step away from most OSM styles. https://cartes.app/#13.13/47.06727/15.44801

Very pretty! Muted palette in light mode, but nice dark mode too!

Re: OpenTrafficMap

#100

Post by raybb »

maelito wrote: post #74
crimsoneer wrote: post #72

Earlier quoted context omitted.

What is the OS alternative? OSM?

https://cartes.app . Based on OSM of course, but OSM is just a geographical database, with lots of incomplete UIs built on top by the community. Cartes is one of them, we're trying to make it complete and modern :)

This is freaking great! How are you involved? Where does it get this cool image from? Dog Eared Books https://cartes.app/?allez=Dog+Eared+Books%7Cn6780338385%7C-1...

Also, I noticed the map is at least a few days behind in my area, how long does it take for you to get updates?

Do you plan to offer any way to sync data between devices?

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