The option --max-edges-factor (default value 2.0) controls how long the
routes may get in relation to network size. You can try a larger value.
Also, errors can be ignored using the option --ignore-errors (A small
fraction of unbuilt routes should not be a problem for the type of demand
you are generating. Alternatively, add the option --accept-all-destinations
to allow those problematic routes to terminate wherever they get stuck).
Also, I don't think vehicles driving in loops should be a problem for your
scenario. To achieve high densities, see
http://sumo.dlr.de/wiki/FAQ#How_do_I_get_high_flows.2Fvehicle_densities.3F
regards,
Jakob
2016-04-18 9:41 GMT+02:00 Manolo <[email protected]>:
>
>
> I just do so, the number of errors gets less, but still exist. I turely
> want to make certain number of vehicles driving on a certain road, some a
> can calculate the vehicle density (veh/km), which is commonly used in the
> papers. Could you have some codes about vehicles driving in loops, or
> what's your comments to achieve a certain vehicle density?
>
>
>
> 在 2016-04-18 15:15:03，"Jakob Erdmann" <[email protected]> 写道：
>
> If you want to achieve routes that go in circles before finding the exit,
> add option --allow-loops
>
> 2016-04-16 8:08 GMT+02:00 Manolo <[email protected]>:
>
>> I change my turns.xml as follows
>> <turns>
>> <interval begin="0" end="300">
>> <fromEdge id="e">
>> <toEdge id="g" probability="0.5"/>
>> <toEdge id="f" probability="0.5"/>
>> </fromEdge>
>>
>> </interval>
>> <sink edges="h"/>
>>
>> </turns>
>> but the error still exists.
>>
>>
>>
>>
>> 在 2016-04-15 17:03:29，"Jakob Erdmann" <[email protected]> 写道：
>>
>> You did not define sink edges. See the updated documentation at
>> http://sumo.dlr.de/wiki/Demand/Routing_by_Turn_Probabilities#Sinks_Definitions
>>
>> regards,
>> Jakob
>>
>> 2016-04-15 10:33 GMT+02:00 Manolo <[email protected]>:
>>
>>> Hello,
>>> I am a user of sumo simulator and doing the simulation to let the
>>> vehicles frive in a loop.
>>> And here is my question
>>> when a use command
>>> jtrrouter --flow-files=<flow> --turn-ratio-files=<TURN_DEFINITIONS>
>>> --net-file=<SUMO_NET> \
>>> --output-file=MySUMORoutes.rou.xml --begin <UINT> --end <UINT>
>>> I got the error as follows:
>>> Error： The route starting at edge 'a' could not be closed.
>>> I don't know why and give you my thanks if your help me.
>>> About flow definitions I use flows.xml :
>>> <flows>
>>> <flow id="flow0" from="a" number="100" begin="0" end="20"
>>> departLane="random" departPos="random" departSpeed="random"
>>> arrivalSpeed="current"/>
>>> </flows>
>>> and nod.xml
>>> <nodes>
>>> <node id="node1" x="100.0" y="300.0" type="priority"/>
>>> <node id="node2" x="750.0" y="300.0" type="traffic_light"/>
>>> <node id="node3" x="1400.0" y="300.0" type="priority"/>
>>> <node id="node4" x="1400.0" y="100.0" type="priority"/>
>>> <node id="node5" x="100.0" y="100.0" type="priority"/>
>>> <node id="node6" x="100.0" y="200.0" type="priority"/>
>>> <node id="node7" x="50.0" y="200.0" type="priority"/>
>>> <node id="node8" x="50.0" y="100.0" type="priority"/>
>>> </nodes>
>>> and edg.xml
>>>
>>>
>>> <edges>
>>> <edge id="a" from="node1" to="node2" priority="75"
>>> numLanes="4" speed="40" />
>>> <edge id="b" from="node2" to="node3" priority="75"
>>> numLanes="4" speed="40" />
>>> <edge id="c" from="node3" to="node4" priority="75"
>>> numLanes="4" speed="40" />
>>> <edge id="d" from="node4" to="node5" priority="75"
>>> numLanes="4" speed="40" />
>>> <edge id="e" from="node5" to="node6" priority="75"
>>> numLanes="4" speed="40" />
>>> <edge id="f" from="node6" to="node1" priority="75"
>>> numLanes="4" speed="40" />
>>>
>>> <edge id="g" from="node6" to="node7" priority="75"
>>> numLanes="4" speed="40" />
>>> <edge id="h" from="node7" to="node8" priority="75"
>>> numLanes="4" speed="40" />
>>> </edges>
>>> and turns.xml
>>> <turn-defs>
>>> <interval begin="0" end="300">
>>> <fromEdge id="e">
>>> <toEdge id="g" probability="0.5"/>
>>> <toEdge id="f" probability="0.5"/>
>>> </fromEdge>
>>> <sink>"h"</sink>
>>> </interval>
>>> </turn-defs>
>>>
>>>
>>>
>>>
>>> --
>>>
>>> Best wishes,
>>> Email: [email protected]
>>>
>>> ------------------------------------------------------------------------------
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>>> Manager
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>>
>>
>>
>>
>>
>>
>> --
>>
>> Best wishes,
>> Long Sun
>> Ph.D. Candidate Institute of Information and Communication Engineering,
>> Zhejiang University
>> Mobile: +86-137-3221-6566
>> Email: [email protected]
>>
>>
>
>
>
>
>
> --
>
> Best wishes,
> Long Sun
> Ph.D. Candidate Institute of Information and Communication Engineering,
> Zhejiang University
> Mobile: +86-137-3221-6566
> Email: [email protected]
>
>
------------------------------------------------------------------------------
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your business applications. It resolves application problems quickly and
reduces your MTTR. Get your free trial!
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