Thanks Barry. I tried to remove some routes that created traffic jams in
the network due to U-turn, but it only reduces some traffic jams. It
doesn't solve the jam in other parts of the network. I would like to know
if there is any other way to generate and check the implausible routes. Is
there a way to use implausibleRoute.py with routeSampler to improve the
traffic flow?


Thanks,
Anil

On Mon, Jul 6, 2020 at 4:35 AM Evans, Barry <[email protected]> wrote:

> Hi Anil,
>
> I haven't looked over the data but I had a similar problem when I was
> using routeSampler.py. One of causes I found for sever jams was to do with
> some vehicle routes either starting with or ending with a U-turn manoeuvre.
>
> What I did was run the model in the GUI and visually look for where these
> jams are occurring and then click on the car that I believe to be causing
> the jam to see if it is attempting a U-turn either at the start of its
> journey or the end. If it is I'd then go into the rou.xml file in a text
> editor like notepad++ and look at the id of the vehicle causing the jam and
> trim either the beginning or the end of its route accordingly to remove the
> U-turn manoeuvre.
>
> If this is the issue, removing these U-turns will help reduce jams.  I
> hope this helps but if not maybe someone else who is more familiar with
> routeSampler.py could help.
>
> All the best,
>
> Barry
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of anilbaral
> Sent: 06 July 2020 19:23
> To: [email protected]
> Subject: [sumo-user] RouteSampler.py demand generation problems
>
> CAUTION: This email originated from outside of the organisation. Do not
> click links or open attachments unless you recognise the sender and know
> the content is safe.
>
>
> Hi all,
> I have use routeSampler.py to generate demand with edge count data. The
> edge data was generated from the flow file and contains the hourly count on
> the edges with detectors.  I was successfully able to generate the vehicle
> using routeSampler, and the mismatch was almost negligible. However, when I
> run the simulation, I find a lot of jam during *peak hours*.  I have used
> the actuated traffic light and most probably traffic light is not the cause
> of traffic jams.  I am not sure how to deal with this problem. I think it
> is due to the routes that are being generated by routeSampler.py.  Please
> suggest how can I deal with these issues and what can be the probable
> causes?
>
> Attached is the file: FILES_Sumo.rar
> <
> https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsumo-user-mailing-list.90755.n8.nabble.com%2Ffile%2Ft411%2FFILES_Sumo.rar&amp;data=02%7C01%7CB.Evans%40exeter.ac.uk%7C21cdeb20d03d445fb35b08d8217d9104%7C912a5d77fb984eeeaf321334d8f04a53%7C0%7C0%7C637296170474282354&amp;sdata=Imeub1WorD8Cy04cUhEtgngsIbizggA6V8SApLjcIew%3D&amp;reserved=0
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>
> Thanks
> Anil
>
>
>
>
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