Re: [ipwave] Protocols and Architectures for Traffic Lights

[Alexandre Petrescu <[e-mail]>]

For further completeness...

The Dutch version of protocols for Traffic Lights Controllers, in 
addition to IVERA also include iVRI, on the web at 
https://www.crow.nl/thema-s/verkeersmanagement/landelijke-ivri-standaarden

The German OCIT protocol is on the web at www.ocit.org

I continue to wonder what is the protocol used for communicating with 
Traffic Lights Controllers in Italy, and in America?

Alex

Le 06/06/2019 à 05:13, Alexandre Petrescu a écrit :
>
> For completeness,
>
>
> The complete list of protocols to communication to Traffic Lights 
> Controllers is: DIASER, IVERA, OCIT.
>
> Because I learn in Germany and the Czech Republic, the OCIT protocol 
> (not DIASER) may be used for communication to Traffic Lights 
> Controller, with some implementations from Siemens and from Cross.  
> Not known whether OCIT works on IP, and on IPv6.
>
> DIASER is known to work on RS232, TCP and UDP.  Seen on IPv4; not 
> known on IPv6.  SEA is a traffic lights controller manufacturer in 
> France that produces some, implements DIASER too.  There are about 10 
> manufacturers in France (Aximum of Colas, Fareco of Fayat, Lacroix, 
> SEA, others?), all doing DIASER.
>
> Basically, if one wants a car to talk to traffic lights controllers 
> with low latenccy, one wants to put 3 protocols in that car.
>
>
> Le 29/01/2019 à 15:04, Alexandre Petrescu a écrit :
>>
>>   Protocols and Architectures for Traffic Lights
>>               Januay 29th, 2019
>>
>>
>> DIASER: a protocol used to communicate to Traffic Lights controllers.
>> Used in France.  Specified by AFNOR.  Closed and paying specification.
>> Works on hardware platforms from Lacroix (model Traffy) and Aximum
>> (model Maestro), and probably others.  Works on serial and on UDP/IP.
>> Example queries are: "DZ" to reset, "Ck" and "CJ" to query the current
>> color of lights, C# and CU to get the time spent in a color.
>>
>> API WIM 7101, RSGC2: proprietary API interfaces used by organisation
>> NEAVIA of organisation Lacroix in France; it is used to provide access
>> to data of traffic lights controllers.  It can be used with DIASER in
>> a sequence way: a gateway converts from one to another.
>>
>> ISO PRESTO 22951: a protocol to communicate with traffic lights
>> controller, to obtain priority for special vehicles.
>>
>> SPAT/SSM/SRM: protocols used by future traffic lights controllers;
>> specified by SAE in J2735.  The 2009 version is freely available,
>> whereas the 2016 (non retro-compatible) is paying 100 USD,
>> approximative.  SPAT is Signal Phase and Timing, whereas SRM is Signal
>> Request Message.
>>
>> SPAT-EM: an European version of SPAT, specified by ETSI, which
>> encapsulates SPAT.  Free access, but SPAT still paying (free
>> encapsulated paying).
>>
>> IVERA: a protocol used in Netherlands to communicate with Traffic
>> Lights controllers.  Potentially VLOG is also such a protocol.
>>
>> 3G Segnaletica: an organisation in Italy that provides hardware for
>> controllers for traffic  lights.  Also has models carried in 'mobile'
>> traffic lights.  It provides a Raspberry Pi to access the traffic
>> lights data.  The Raspberry Pi uses an API to access the controller
>> status.  That API uses HTTP.
>>
>> Siemens: is an organisation that probably provides hardware for
>> traffic lights controllers to be used in America (USA).
>>
>> Architectures: sketches drawing controller, tri-light bulbs, Internet,
>> 802.11-OCB, car, API, SPAT.
>>
>> Acknowledgements: Daniele Brevi, Bart Netten, Stephane Goeuriot, Sri
>> Gundavelli, Bruno Cabon, Paul Thorpe.
>>
>>
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