OpenTrafficMap • Hacker News Board

Re: OpenTrafficMap

#41

Post by Barbing » Thu, Apr 30, 2026, 2:14 AM UTC

ufocia wrote: post #34

softgrow wrote: post #33

Earlier quoted context omitted.

Reading the translation of the talk, public transport vehicles have a persistent MAC but for private cars the MAC address changes every 15 minutes.

That still doesn't seem very private.

Particularly anywhere rural or off the beaten path

Re: OpenTrafficMap

#42

Post by modinfo » Thu, Apr 30, 2026, 2:52 AM UTC

It will be nice if we everybody could just add own receivers, then it will be quickly cover more cities. But still nice project.

Re: OpenTrafficMap

#43

Post by flicken » Thu, Apr 30, 2026, 4:39 AM UTC

embedding-shape wrote: post #26

poorman wrote: post #24

I wonder if this could be used to track location of the vehicle

Isn't that the point of the project? I'm seeing a bunch of tracked vehicles, although they all seem parked at the moment. Does Graz not have night bus service?

The night bus service only runs the nights "before" Saturday and Sunday[1]. It's a small university city with 300k population (600k greater metropolitan area).

[1] https://www.verbundlinie.at/en/customer-service/arriving-in-...

Re: OpenTrafficMap

#44

Post by antman » Thu, Apr 30, 2026, 4:50 AM UTC

uyzstvqs wrote: post #29

solarpunk wrote: post #2

Cool, but it there's no links for more info, and it doesn't seem to work in the USA at all.

The site is definitely lacking. It's half in German, half in English. The concept is that there is this protocol called ITS-G5, which is a European profile of 802.11p. Vehicles and traffic infrastructure can transmit telemetry on 5 GHz. Other vehicles and traffic infrastructure can use it for situational awareness. This website collects that data using local receivers and aggregates it onto a map, similar to what web…

What about the traffic lights on the map do they also have transmitters?

Re: OpenTrafficMap

#45

Post by Maxious » Thu, Apr 30, 2026, 5:10 AM UTC

RobotToaster wrote: post #23

moooo99 wrote: post #4

Earlier quoted context omitted.

The project was shared as part of a talk at Graz Linux Tage. You can find it here, unfortunately it is only available in German https://media.ccc.de/v/glt26-688-c-its-mit-einem-esp32-ampel...

Is there a link to the hardware they mention in the description?

They built their own circuit board but the core module that does the 802.11p is just a ESP32-C5

Re: OpenTrafficMap

#46

Post by RobotToaster » Thu, Apr 30, 2026, 5:16 AM UTC

Maxious wrote: post #45

RobotToaster wrote: post #23

Earlier quoted context omitted.

Is there a link to the hardware they mention in the description?

They built their own circuit board but the core module that does the 802.11p is just a ESP32-C5

Yes, I understand that. The translation makes it sound like they have published the software and design, or are somehow making boards available.

>To improve coverage, we need your support! We have built a board with *ESP32-C5* and *PoE* that allows you to capture *C-ITS* packages yourself, and provide us for our face-up card, or process it yourself.

Edit: found it, https://codeberg.org/opentrafficmap

Re: OpenTrafficMap

#47

Post by modinfo » Thu, Apr 30, 2026, 5:23 AM UTC

modinfo wrote: post #42

It will be nice if we everybody could just add own receivers, then it will be quickly cover more cities. But still nice project.

Ahh, it send automatically to website! "mqtts://cits1.opentrafficmap.org"

Re: OpenTrafficMap

#48

Post by RobotToaster » Thu, Apr 30, 2026, 5:29 AM UTC

Codeberg link https://codeberg.org/opentrafficmap

Re: OpenTrafficMap

#49

Post by dawnerd » Thu, Apr 30, 2026, 5:50 AM UTC

rootusrootus wrote: post #9

walrus01 wrote: post #6

Earlier quoted context omitted.

If I had a dollar for every time I've seen an American on the Internet assume that anything published in the English language must be US-centric...

Conversely, if I had a penny for every time someone complained about Americans... ;-)

That's one way to get rid of our (US) pennies now that they're useless!

Re: OpenTrafficMap

#50

Post by interloxia » Thu, Apr 30, 2026, 6:10 AM UTC

ufocia wrote: post #34

softgrow wrote: post #33

Earlier quoted context omitted.

Reading the translation of the talk, public transport vehicles have a persistent MAC but for private cars the MAC address changes every 15 minutes.

That still doesn't seem very private.

Even our tires blast out IDs.

https://www.rtl-sdr.com/exploring-the-privacy-risks-of-tire-...