Re: [ipwave] Protocols and Architectures for Traffic Light Controllers

[Alexandre Petrescu <[e-mail]>]

Sorry, I forgot, we already discussed.  I am in told in private that:

In the US the protocol to communicate with Traffic Lights Controllers is 
NTCIP.  It is on the web at 
https://www.ntcip.org/document-numbers-and-status/ It has Internet 
specifically (it has profile for it, dated 2001).

I dont see IPv6 mentioned though.

Not only a car would need to implement IVERA, DIASER, NTCIP and OCIT to 
talk to Traffic Lights Controllers, but it would not need IPv6 at all.  
Because none runs on IPv6.

I disagree with this lack of IPv6 support in these protocols.


Le 06/06/2019 à 17:18, Alexandre Petrescu a écrit :
>
> 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.
>>>
>>>
>>> _______________________________________________
>>> its mailing list
>>> [e-mail]
>>> https://www.ietf.org/mailman/listinfo/its
>>
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