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[sumo-user] How vTypeDistribution works
  • From: "Bae, Jong In" <jbae42@xxxxxxxxxx>
  • Date: Sun, 26 Sep 2021 15:31:57 +0000
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  • Thread-topic: How vTypeDistribution works
Hello,

I have a 2-lane freeway to which the traffic is distributed as following:
Lane0: 1300 ~ 1500 veh/hr (increment by 100 veh/hr in each run)
Lane1: 0 ~ 500 veh/hr (increment by 100 veh/hr in each run)

And I counted the vehicles at the start of the lane for 3600 seconds.
The vehicle count is shown in 'vehicle count.png'.

Lane0_input and Lane1_input are the assigned values in the vehicle definition.
Lane0_observed and Lane1_observed are the vehicle counts from each run.

What I'm having issues with is the following:
  1. It seems like Lane0_observed is decreasing as Lane1_input increases. Does this mean that when vehicles are released, the distance to the vehicles in the adjacent lane matters?
  2. In Lane0_input: 1500 and Lane1_input: 0 case, Lane0_observed is only 1,427 vehicles. Is this because of the headways from the leading vehicle in lane 0?

Thank you and please let me know if any further clarification is needed!


Attachment: vehicle count.PNG
Description: vehicle count.PNG

Attachment: vtypedistr.PNG
Description: vtypedistr.PNG

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