Re: [sumo-user] LuST Dataset Timing

[Moyukh Laha <iammoyukh@xxxxxxxxx>]

Ok, got it.

Thanks a lot, Lara.

Moyukh

On Mon, Feb 15, 2021 at 9:34 PM Lara Codeca <lara.codeca@xxxxxxxxx> wrote:

If you tell SUMO to start the sim at 8 AM, it will load the routes with a start time from 8 AM onward.

Obviously, the number of vehicles and the level of congestion is going to be very different from the complete simulation.

I would just run it whole collecting everything you need and filtering afterward.

Regards,

Lara

On Mon, Feb 15, 2021 at 3:45 PM Moyukh Laha <iammoyukh@xxxxxxxxx> wrote:

Thanks, Lara.

If I don't run it from the start, I won't see a similar number of running vehicles? 5000-ish at 8 AM (as shown in the images)?
Or the number of ON vehicles will be in the same range, but the congestion may be different?

My primary target is to know each of the vehicles' positions at each time step (snaps of the system) during the busy hour.

Moyukh

On Mon, Feb 15, 2021 at 8:44 PM Lara Codeca <lara.codeca@xxxxxxxxx> wrote:

Hi,

yes. 0 = midnight.

> I want to generate traffic only from 8AM to 8:02AM, ...

You need to take into account that the morning rush hour is due to what happened before. so if you don't run all of it, you are not going to have the same level of congestion.

But yes, you need to change the start time, end time, and step.

Keep into account that LuST was built for a sumo version that it's obsolete. I have no idea how would it behave with the latest SUMO version.

Regards,

Lara

On Mon, Feb 15, 2021 at 2:39 PM Moyukh Laha <iammoyukh@xxxxxxxxx> wrote:

Hello,
 As described in the paper, the LuST dataset is of 24hrs. I find the sumo.cfg file starts from 0 with step size 1 (without any end field).

I want to confirm the starting time of the cfg? Is it 12 AM?

For example, if I want to generate traffic only from 8AM to 8:02AM, should I use---
start time = (3600x8) = 28,800
end time = 28,800 + 120 (60 x 2 min) = 28920? and step size = 1

Is my understanding correct?

And if I want the step size as 0.1 (i.e. snaps at every 0.1s), how should I modify the cfg? Only the step-size or both start and end time needs to be adjusted accordingly?

Thanks.

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