question

Shahad S avatar image
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Shahad S asked Ryan Clark commented

[urgent] problem in plane boarding Model

Hello ,

I am designing a model for boarding plane and I have few problems :

1/ the passengers don't wait for each other in the aisle , they escape the plane then repeat the course .

2/ we want them to unload their luggage's in the aisle but they do it in the seat

3/ the results are too fast , we want them to be around 25-30 minutes .

I attached the model

please help me :((((((

TCLS -Random [AStar] - Without pulling the bag (4).fsm



FlexSim 20.0.10
processflowunloadwaiting lineplane
· 2
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Joerg Vogel avatar image Joerg Vogel commented ·

Hi, there exists a policy of academic integrity at this forum site. The model is build in Version 20.2.

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Ryan Clark avatar image Ryan Clark commented ·

Hi @Shahad S, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always unaccept and comment back to reopen your question.

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1 Answer

Felix Möhlmann avatar image
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Felix Möhlmann answered

Here are some ideas that might help you get your model to work as intended:

1) Use a larger grid spacing. In order to prevent people from being able to "overtake" each other in the aisle, there should only be a single line of grid nodes available. Since the chairs a equidistant from each other, a simple fraction of that distance might work well. (Half the distance in the screenshot below).

2) Instead of telling the people to unload their luggage via an "Unload" activity, send them to "waypoints" first, then use the "Move Object" activity to move the luggage into the storage. This gives you more control over the position the passengers are in when storing luggage. The waypoints can be connected to the respective row of chairs with center connection for easy reference in the process flow. ("Model.find(token.location).as(Object).centerObjects[1]")

1649659979011.png

1649659752759.png

You can use the same technique to move the luggage into the correct queue.

3) If the times are not what you expect, check if all delays/speeds are set correctly. I noticed for instance that the delay before unloading is set to the default distribution (exponential with mean time 10s). Is this correct?


1649659752759.png (188.4 KiB)
1649659979011.png (17.2 KiB)
5 |100000

Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.