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Re: [sumo-dev] Make vehicles recognise street signs

Hello,
your example is still quite abstract and all I can think of myself are signs that regulate speed (e.g. speed limit signs or stop signs).
Currently, obedience to speed limits is configurable for each vehicle type (attribute speedFactor) whereas obedience to stop signs cannot be configured (violating red lights can be enabled though).
Right now you can use TraCI to check whether a vehicle passes a speed sign (implicit from the fact that it passes between edges with different speed limits).
Using TraCI you can also apply any kind of behavior adaptation you like.
You can also use TraCI to figure out whether a vehicle is approaching a stop sign or a yield sign and modify its behavior in some way (again the signs are encoded in the network model already).
If you can come up with further concrete examples of signs, then  I can tell you whether they are already included in the models or how to model them.
regards,
Jakob



Am Fr., 12. Okt. 2018 um 17:16 Uhr schrieb Lauro de Lacerda Caetano <laurodelacerda@xxxxxxxxx>:
Hi Jakob, thanks for replying.

The idea is to have a device that can identify traffic signs in run time and apply pre-defined behaviours upon the emergence of these signs. Also, this device could be used to check if a vehicle is complying with traffic norms on the fly and pass this information to others applications.

As an interactive reaction to some kind of street sign, take the two following cases:

1) A set of warning signs that advert drivers to change their driving style to a less aggressive behaviour.
2) A set of regulatory signs that obligates drivers to behave in a desired manner.

It would be interesting to set a rate of obedience to each vehicle type (vtype) in face of different kinds of street signs and check compliance with traffic norms (maybe using a device).

The extention of this features could possibly make the traffic simulation a little more realistic.

Is this kind of feature possible (maybe with an extension) with SUMO?

Regards,
Lauro.


Em sex, 12 de out de 2018 03:28, Jakob Erdmann <namdre.sumo@xxxxxxxxx> escreveu:
In SUMO the effect of street signs is already encoded in the network model (.net.xml) in the form of speed limits and right-of-way rules. For specialized signs such as variable-speed-signs, additional objects can be declared and loaded into the simulation at startup (http://sumo.dlr.de/wiki/Simulation/Variable_Speed_Signs)
The whole purpose of the street-sign output was to serve as additional visualization for the end user.

If you give an example of the type of interactive reaction to street signs that you have in mind I may be able to give advice on how to model this in sumo.

regards,
Jakob

Am Do., 11. Okt. 2018 um 23:41 Uhr schrieb Lauro de Lacerda Caetano <laurodelacerda@xxxxxxxxx>:
Hello, SUMO community.

I am currently creating traffic simulations with SUMO and I am interested in including street signs and extending a class (maybe a device) that could help me to identify these street signs and change vehicle behavior at run time. 

My question is: Is this possible with SUMO? Could vehicles react to some kind of street sign (a type of POI of these types, for instance) during the simulations?

Thanks for your help.

Kind regards,
Lauro.
---
Lauro de Lacerda Caetano
IEEE and VTS Member
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