Re: [sumo-user] Question of traffic signal

[Brett W. <br...@ma...>]

Hi Michael,

Am I correct in assuming that there must be a phase for for each link to be
a valid TLS program? And is there a numbering convention for links in a
junction?


Thanks,
Brett
--

*Brett Wiesner*
VT MÄK, Director of New Product Innovation
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On Fri, Aug 3, 2012 at 12:59 AM, Michael Behrisch <
beh...@us...> wrote:

> Hi Wei Li,
>
> 2012/7/31 Wei Li <agn...@12...>:
> > Dear Sir/Madam,
> > I'm new user of sumo. I'm working with a signal  intersection. but i
> cannot understand the description in tllogic
> > files, what it means about 'phase' and 'state', what is the difference
> of them. and what is about 'state' and 'program'.
>
> Just a short explanation: A phase is a period of time where the lights
> do not change for all traffic lights in question, the respective state
> describes the light shown (basically r for red, y for yellow, g for
> green) for all links. A link is a lane to lane connection which are
> numbered consecutively for each junction. The number can be shown via
> the GUI or read from the net file. A program is just a sequence of
> phases.
>
> There is also a python tool which can be used if one wants to define
> rather explicit from and to lanes instead of link numbers, all
> descriptions are here
>
> http://sourceforge.net/apps/mediawiki/sumo/index.php?title=Simulation/Traffic_Lights
>
> > then when i have tllogic files, how can i implement them to networks and
> simulation?
>
> Just load them as an additional file (option -a)
>
> > i don't understand the command-line explaination. and what should be the
> name of tls-file?
>
> The name is arbitrary but by convention it should end with .add.xml
>
> Regards,
> Michael
>
>
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