Hi,
flow definitions are described here:
http://sumo-sim.org/userdoc/Definition_of_Vehicles,_Vehicle_Types,_and_Routes.html#Repeated_vehicles
except that for router input they do not have route childs but from
and to attributes like trips.
For the traffic lights I think you misunderstood the documentation,
there is usually one traffic light logic per junction but it may be
one signal per link, see here:
http://sumo-sim.org/userdoc/Simulation/Traffic_Lights.html

Best regards,
Michael

2013/12/26 Pooja Voladoddi <[email protected]>:
> (Forgot to send it to the whole group)
>
> Hello,
>
> Thanks for your reply.
>
> 1) how are flow definitions different from trip files (as in what parameters
> are defined in it ? I know the syntax of rou.xml and trips.xml but I don't
> know what goes into flow definitions) .
>
> 2) any hints /clues on how to provide only one traffic light per link(/lane)
> at a junction instead of one traffic light controlling all the links
> (/lanes)?
>
> Merry Christmas to all.
> -----
>
> Regards ,
> Pooja.
>
>
> On Thursday, December 26, 2013, Michael Behrisch wrote:
>>
>> Hi,
>> you omitted the flow definitions in your call to jtrrouter.
>>
>> Best regards,
>> Michael
>>
>> 2013/12/24 Pooja Voladoddi <[email protected]>:
>> > Dummy nodes-
>> >
>> > In implementing a simple grid-like junction, is it necessary for later
>> > versions of SUMO (0.18) to add dummy nodes at the ends of links/edges ?
>> >
>> >
>> > JTRROUTER -
>> > After referring to
>> > http://sumo-sim.org/userdoc/Demand/Routing_by_Turn_Probabilities.html
>> >
>> > I tried to generate route files like so ---->
>> >
>> > jtrrouter --turn-ratio-files=trial_one.turns.xml
>> > --net-file=trial_one.net.xml --output-file=trial_one.rou.xml
>> >
>> > however, i am getting an error like this ---->
>> >
>> > Error: No route input specified.
>> > Quitting (on error).
>> >
>> > -- If i am not wrong, JTRRouter gives an output rou.xml file so what it
>> > does
>> > it mean by this error?
>> > --Also, i was wondering if i could instead write the routes explicitly
>> > using
>> > python instead of adding probabilities to make the traffic movement more
>> > realistic.
>> >
>> >
>> > One-to-many traffic light control
>> >
>> > It says in the documentation that
>> >
>> > " In SUMO, a one-to-n dependency between signals and links is
>> > implemented,
>> > this means each signal may control more than a single link - though
>> > networks
>> > generated by NETCONVERT or NETGENERATE usually use one signal per link.
>> > "
>> >
>> > I want to make sure that in a single junction having 4 lanes, each lane
>> > is
>> > given a GREEN state and RED state in rotation.
>> >
>> >  For example, Lane 1 is GREEN from 0s to 30s , others are all RED.
>> >                      Lane 2 is GREEN from 31s to 45s, others are all
>> > RED.
>> >                      Lane 3 is GREEN from 46s to 60s, others are all
>> > RED...
>> > and so on.
>> >
>> > So, i want to know if by saying type="traffic_light" at one junction,
>> > I'm
>> > initialising only one traffic light for that junction or 4 traffic
>> > lights
>> > for the 4 lanes?
>> >
>> > If yes, how do I override NETCONVERT's default setting to have 4
>> > disconnected traffic lights to operate at one junction instead of only
>> > one?
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > ----
>> > Your help is appreciated, thanks in advance.
>> >
>> > Regards,
>> > Pooja Voladoddi
>
>

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