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Raashid Mohammed avatar image
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Raashid Mohammed asked Joshua S commented

How to avoid collision using A star for rack

rackwithtruck.fsm

Hi

I have two trucks unloading box on rack. Even I setup grid using A star they still seems to collide with each other due to offset travel. How to avoid collision when loading racks with process flow

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FlexSim 18.2.2
a star
rackwithtruck.fsm (32.3 KiB)
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Joshua S avatar image
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Joshua S answered Joshua S commented

You can avoid collision with each other by increasing the Node Spacing. This allows more space between nodes the A* creates to build its pathing, so the Transports don't come as close to each other.

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Craig DIckson avatar image Craig DIckson commented ·

@Joshua S So spacing between vehicles/operators etc. using A Star is defined solely by node spacing, not by the physical size of the transport (or flow item?)

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Joshua S avatar image Joshua S Craig DIckson commented ·

@Craig DIckson correct.

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Craig DIckson avatar image Craig DIckson Joshua S commented ·

@Joshua S Making the grid spacing larger works for the queuing, except that it makes the location less accurate. Even if I use a Travel to Location activity, the TE will often stop one or more nodes away, which in this case is in the middle of a travel aisle. Is there a way to force the TE to an exact grid location?

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