Re: [sumo-user] On ramp simulation

[Michael Behrisch <oss@xxxxxxxxxxx>]

Hi,
I think SUMO's default model is less aggressive when changing lanes than 
the one used in the other example. Try changing the pushy parameter, see 
http://sumo.dlr.de/wiki/Simulation/Safety#Lane-Changing_Model

Best regards,
Michael

Am 2018-01-23 00:34, schrieb Moti weizman via sumo-user:
> Hi
> I am trying to simulate a simple freeway on-ramp scenario, in which 
> traffic
> from on-ramp causing jam on all freeway lanes, as you can see in
> http://www.traffic-simulation.de/onramp.html when increasing onramp 
> flow.
> What I am getting in SUMO is traffic slow down only on the the lanes
> closest to the on ramp and the other lanes continue to flow, I was
> expecting traffic from first lane to improve their situation and try to
> change to other lanes which in effect jam the other lanes
>
> Am i doing somthing wrong ?
>
> <routes>
>
>
> <vTypeDistribution id="t1">
> <vType id="car1t1" vClass="passenger" color="1,1,0" maxSpeed="30"
> probability="0.3" laneChangeModel="SL2015" lcSpeedGain="1000"/>
> <vType id="car2t1" vClass="passenger" color="1,1,0" maxSpeed="40"
> probability="0.4" laneChangeModel="SL2015" lcSpeedGain="1000"/>
> <vType id="car3t1" vClass="passenger" color="1,1,0" maxSpeed="50"
> probability="0.3" laneChangeModel="SL2015" lcSpeedGain="1000"/>
>     </vTypeDistribution>
> <vTypeDistribution id="t2">
> <vType id="car1t2" vClass="passenger" color="0,0,1" maxSpeed="30"
> probability="0.3"/>
> <vType id="car2t2" vClass="passenger" color="0,0,1" maxSpeed="40"
> probability="0.4"/>
> <vType id="car3t2" vClass="passenger" color="0,0,1" maxSpeed="50"
> probability="0.3"/>
>     </vTypeDistribution>
> <vTypeDistribution id="t3">
> <vType id="car1t3" vClass="passenger" color="0,1,0" maxSpeed="30"
> probability="0.3"/>
> <vType id="car2t3" vClass="passenger" color="0,1,0" maxSpeed="40"
> probability="0.4"/>
> <vType id="car3t3" vClass="passenger" color="0,1,0" maxSpeed="50"
> probability="0.3"/>
>     </vTypeDistribution>
>
>     <flow id="e2e" type="t1" begin="0" end="500" number="1000"
> from="entry" to="exit"
> departPos="random" departLane="random" />
>     <!-- <flow id="e2r" type="t2" begin="0" end="500" number="100"
> from="entry" to="rampexit" departPos="random" departLane="random" /> 
> -->
> <flow id="r2e" type="t3" begin="0" end="500" number="1000" 
> from="rampenter"
> to="exit" departPos="random" departLane="random" />
> </routes>
>
>
> Thank you
>
> Stam shem
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