Links

Public Transport Acceleration Technologies

Trams and Buses communicate with traffic lights to get priority and ensure safety in different traffic scenarios. On different locations on the line, they send out a signal to the traffic light to communicate where there are currently located (pre-registration, registration, doors closed and doors closed). This is interpreted by the traffic light to change the order and duration of its cycles.
Traffic light controlled by radio links of buses and trams. Modified grafic from
Different standards are used by different cities. Most notably the VDV standard. The image below shows what standard is used in major cities. The different section will list what city uses which standard.
Map from bast displaying selected cities with traffic lights controlled by public transport.

VDV Standard

  • VDV (Verband Deutscher Verkehrsverbünde) standardized R09 Telegrams in VDV420.
  • They are sent out with a form of AFSK (FSK over FM) mostly in the 2m band. More information on how to receive this data can be found here.
  • Data contained in the telegrams is:
    • Reporting point (Meldepunkt) containing an ID of the traffic light, some kind of information where the vehicle is located and its direction of travel. How a reporting point is "assembled" is not standardized and up to the transport company
    • Optional: a line number
    • Optional: a run number
    • Optional: a destination number
    • Optional: delay
    • Optional: other fields used as the standard intends or for custom purposes
  • The table below shows different cities in Germany that use this standard.
City
Verified
Frequency
Telegram Type
Source
Aachen
152.85MHz
R10
Augsburg
Baden-Baden
Berlin (Strab)
170.45MHz
R09.16
Bielefeld
Bocholt
R09.14
Bochum
Bonn
Braunschweig
Bremen
Bünde
Chemnitz
153.87MHz
R09.16
Cottbus
Darmstadt
Detmold
152.85MHz
R09.16
Dresden
170.81MHz
R09.16
Düsseldorf
155.63MHz
R09.07
Essen
Esslingen
Frankfurt a. M.
Freiburg
Freising
150.813MHz
Gelsenkirchen
Gera
Görlitz
Gotha
Halberstadt
Halle (Saale)
Hannover
150.91MHz
R09.14
Ingolstadt
Jena
Kaiserslautern
Karlsruhe
152.93MHz mind. für Busse
R09.16
Kassel
Kiel
Koblenz
R09.16
Krefeld
Landshut
Lemgo
Lübben
Lübeck
Lüdenscheid
Ludwigsburg
Ludwigshafen
Mainz
Marburg
Mönchengladbach
151.03MHz
R09.16
München
149.41MHz, 150.81MHz, 152.91MHz, 154.01MHz, 171.03MHz
vrmtl. R09.16
Münster
150.85MHz
R09.14
Neu-Ulm
Neubrandenburg
Neumünster
Nürnberg
149.45MHz
Offenburg
Osnabrück
Passau
Pforzheim
vrmtl. 152.93MHz
vrmtl. R09.14
Pirmasens
Regensburg
Rostock
Saarbrücken
Schwerin
Solingen
Stuttgart
Ulm
152.93MHz
R09.18
Unna
Weiden i. d. OPf.
Weimar
Wiesbaden
Wiesbaden Nord
R09.14
Wolfsburg
Wuppertal
Zwickau
The following cities outside Germany also use this standard.

NEMO

CIty
Verified
Frequency
Telegram Type
Source
Plauen
149.49MHz
Mönchengladbach
159.27MHz

TETRA

Bochum, Bonn, Dortmund, Cologne

Tetrapol

Berlin (Buses), Hamburg

Cellular Phone Network

Böblingen, Dresden, Düsseldorf, Heidenau

WLAN IEEE802.11p -- ETSI ITS G5

Düsseldorf

Others

Magdeburg (Infrared), Nordhausen (Oberleitungskontakte)
Last modified 3mo ago