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Re: [sumo-user] How to generate 1500 number of vehicles in SUMO with specific routes? 
Hello,
- the emergency braking and resulting collisions are explained here:
http://sumo.dlr.de/wiki/Simulation/Safety#Deliberately_causing_collisions.
Observe the simulation to determine whether the braking vehicles are going
to fast (hight speedFactor value) or whether the yellow phases are too
short.
- the "waited too long" warnings can result from too much traffic in
relation to the network size but can also be caused by improper route
assignment. See http://sumo.dlr.de/wiki/Demand/Dynamic_User_Assignment
regards,
Jakob


2017-10-26 5:33 GMT+02:00 Lawrence Soon <lawrencesoon86@xxxxxxxxxxx>:

> Hi Jakob,
>
>
> I wrote a script to generate 2200 vehicles and I realised the following
> errors after running sumo. Seems that there are always collisions of
> vehicles in the map and vehicles are teleport-ed when the number of
> vehicles are too huge. How to generate a huge number of cars (2.2k for
> example) and to ensure that there are no collisions?
>
>
>
>
> Thanks and have a great day!
>
> Best Regards,
> Lawrence
>
>
> ------------------------------
> *From:* Jakob Erdmann <namdre.sumo@xxxxxxxxxxxxxx>
> *Sent:* Thursday, October 19, 2017 2:55 PM
> *To:* Lawrence Soon
>
> *Subject:* Re: [sumo-user] How to generate 1500 number of vehicles in
> SUMO with specific routes?
>
> randomTrips is only usefull if you know nothing about the routes. Since
> you already have the edges, you can specify the flow directly. If you need
> random spacing but an exact number you can use the first definition in my
> previous answer (fixed period) and process that file using the duarouter
> application with the option --randomize-flows. (this will distribute the
> exact number of vehicles randomly in the begin-end time range).
>
> regards,
> Jakob
>
> 2017-10-19 2:24 GMT+02:00 Lawrence Soon <lawrencesoon86@xxxxxxxxxxx>:
>
>> Jakob,
>>
>>
>> Good day. I wish to specify a specific route (eg 10 different routes) in
>> my map so that when running randomTrip.py, the generated cars only go to
>> thro' that 10 specific routes.  How to specify the specific route in
>> certain format in a file as an input to the randomTrip.py?
>>
>>
>> For example, 10 specified routes that I wish to generate via
>> randomTrip.py:
>>
>> *route1 = "street1leftleft2 street1btm street2btm1 street2btm2
>> street2right1 street4right1 street4right2 street67leftright street9right"*
>> *route2 = "street8leftright2 street8leftright1 street5top street6top
>> street7top"*
>> *route3 = "street89leftrigth1 street56lefttight street35btmtop1
>> street3leftright street1leftright1 street1leftright2"*
>> *route4 = "street89leftrigth1 street56lefttight street34leftright
>> street13topbtm street1leftright1 street1btm 478355846#0"*
>> *route5 = "street1leftleft2 street1btm street2btm1 smallstreet2mid
>> street24btmtop2 street4right1 street4rightleft street46btmtop1
>> street35btmtop1 173166893#0"*
>> *route6 = "street8leftright2 street8leftright1 street5leftright
>> street3leftright street1leftright1 street1btm street2btm1 smallstreet2mid
>> street24btmtop1 street13topbtm 21581785#0"*
>> *route7 = "street7btm2 street46btmtop2 street46btmtop1 street34leftright
>> street12leftright 478355846#0"*
>> *route8 = "street1leftleft2 street1leftleft1 street3leftleft1
>> street3leftleft2 street5leftleft street5top street6top street7top"*
>> *route9 = "-448084962 475217889 street2right1 street4right1
>> street4rightleft street46btmtop1 street34leftright street12leftright
>> 478355846#0"*
>> *route10 = "street89leftrigth1 street56lefttight street34leftright
>> street12leftright street2btm1 street2btm2 street2right1 street4right1
>> street4right2 street67leftright street9right"*
>>
>> I understand that it should be listed in the format below:
>>
>> <route edges="street5leftleft juncons58 street5top street6top
>> street9right 198990366#0 street89leftrigth3 22514882#0 164179765
>> street8leftright1"/>
>>
>>
>>
>> Yet I have doubts on the way that I can specify it into a certain format
>> as an input to random.Trip.py?
>>
>>
>> Thanks and have a great day!
>>
>> Best Regards,
>> Lawrence
>>
>>
>> ------------------------------
>> *From:* Víctor Caballero Codina <vcaballero@xxxxxxxxxxxx>
>> *Sent:* Thursday, October 19, 2017 2:19 AM
>> *To:* Lawrence Soon; Sumo project User discussions
>> *Subject:* Re: [sumo-user] How to generate 1500 number of vehicles in
>> SUMO with specific routes?
>>
>> Hello,
>>
>> I am new to SUMO, so I can't offer you a lot of help. Are you asking for
>> something like the scripts used in this video?
>> https://www.youtube.com/watch?v=Mh4WnY4KY4Y . The only missing feature
>> in this example is the departure time.
>> <https://www.youtube.com/watch?v=Mh4WnY4KY4Y>
>> Vehicular and Pedestrian simulated scenario using SUMO, Hofgarten, Munich
>> <https://www.youtube.com/watch?v=Mh4WnY4KY4Y>
>> www.youtube.com
>> Simulation of Urban Mobility (SUMO) is a free and open source simulator
>> for traffic simulations. In this video, vehicular and pedestrian scenario
>> is simulated. The ...
>>
>>
>>
>> Cheers,
>>
>> Víctor Caballero (vcaballero@xxxxxxxxxxxx)
>> Ph.D. Student at La Salle Barcelona - Ramon Llull University
>>
>>
>> On 18/10/2017, 16:23, "sumo-user-bounces@xxxxxxxxxxx on behalf of
>> Lawrence Soon via sumo-user" <sumo-user-bounces@xxxxxxxxxxx on behalf of
>> sumo-user@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>
>>     Hello all,
>>
>>
>>     Is there any script provided in SUMO or any function in SUMO that
>> enables me to generate 1500 number of vehicles in SUMO with specific routes
>> with specific departure time?
>>
>>
>>     Thanks and have a great day
>>
>>
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>

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