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faq 108542758

Billy Charlton edited this page Sep 5, 2018 · 2 revisions

What is the definition of effectivecellsize in plans/population file?

by Celeste Manu on 2017-03-21 20:18:55


Is this the length of the vehicle? How does it effect traffic dynamics? 


Comments: 1


Re: What is the definition of effectivecellsize in plans/population file?

by Kai Nagel on 2017-03-21 21:54:12

Should be in the network file, not the plans/population file.  Yes, this is the length that one vehicle with one passengerCarEquivalent consumes.  Note that storageCapacityFactor in qsim config group does the same thing.  The calculation is in QueueWithBuffer, the code (which is a bit more involved for traffic flow/fundamental diagram reasons) starts with

// first guess at storageCapacity:
 storageCapacity = this.length * this.effectiveNumberOfLanes / context.effectiveCellSize * context.qsimConfig.getStorageCapFactor() ;

As you see, effectiveCellSize and storageCapacityFactory are just multiplied.

Cheers!

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