Re: [sumo-user] Car vs Bus traffic

[Radha Reddy <radha.reddy.ipp@xxxxxxxxx>]

Thanks Jakob,

After sending the emails to you I realized what I did. With your email I confirm that.

Sorry once again.

Radha

On Thu, Oct 7, 2021 at 2:18 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

Contrary to your claim that the Bus-Cars scenario contains 99% cars and 1% buses, it actually contains the same number of cars as the original and adds buses on top of that.

By adding more vehicles you also increase the flow (which shows that the intersection wasn't yet saturated).

Am Mi., 6. Okt. 2021 um 21:48 Uhr schrieb Radha Reddy <radha.reddy.ipp@xxxxxxxxx>:

Sorry for sending different TLC plans. I have updated both of them being unique, but the results are the same.

The Cars-only scenario served 1320veh/h while in Bus-cars scenario it was 1440veh/h. A small change won't increase that much right, even if it is only Krauss CFM. There's something we are missing.

On Wed, Oct 6, 2021 at 8:03 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

- Your two scenarios are using different traffic light plans

- Your busses are driving with the Krauss carFollowModel which makes better use of the defined maximum acceleration

Am Mi., 6. Okt. 2021 um 16:23 Uhr schrieb Radha Reddy <radha.reddy.ipp@xxxxxxxxx>:

Yes Jakob, 5 times with different random seeds. The average of 5 results show that the intersection throughput of mixed cars and buses is higher than the cars only scenario.

I do not understand why this happened.

Regards

Radha

On Wed, Oct 6, 2021 at 2:26 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

Did you try running your scenarios multiple times with different seeds and averaging the results to check whether this is just random noise?

Am Mi., 6. Okt. 2021 um 13:22 Uhr schrieb Radha Reddy <radha.reddy.ipp@xxxxxxxxx>:

Hello SUMO Community,

I was analyzing the Intersection Throughput for an hour in two scenarios for 30KMPH: 1. only cars (100%), and 2. cars (99%) with Buses (1%).

Surprisingly, Scenario 2 has higher throughput values than Scenario 1, I do not understand why. When the length of some vehicles increased (i.e., Bus), it would be expected to reduce the performance right.

Will you please provide some insights why it is happening?

Regards

Radha

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