Emergence example: pedestrian flows

Emergence example: pedestrian flows preview image

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Parent of 1 model: EmergenceWithPerturbation preview imageEmergenceWithPerturbation
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globals [changes]

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to setup
  ca
  ask patches [
    ifelse pycor mod 2 = 0 [set pcolor 8] [set pcolor 9]
  ]
  ask n-of n-agents patches [
    sprout 1 [
      set shape "person"
      set size 1.2
      ifelse random 2 = 0 [set heading 90 set color blue] [set heading 270 set color red]
    ]
  ]
  reset-ticks
end 

to go
  set changes 0
  move
  tick
  if ticks > 5000 [stop]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to move
  ask turtles [
    ifelse any? other turtles-on patch-ahead 1
      [
        ifelse random 2 = 0
          [if ycor < max-pycor [if not any? turtles-on patch xcor (ycor + 1) [set ycor ycor + 1 set changes changes + 1]]]
          [if ycor > min-pycor [if not any? turtles-on patch xcor (ycor - 1) [set ycor ycor - 1 set changes changes + 1]]]
      ]
      [
        fd 1
      ]
  ]
end 

There are 3 versions of this model.

Uploaded by When Description Download
Giangiacomo Bravo over 1 year ago Reverted to older version Download this version
Giangiacomo Bravo over 1 year ago Introduction of a wall perturbating the flow Download this version
Giangiacomo Bravo over 7 years ago Initial upload Download this version

Attached files

File Type Description Last updated
Emergence example: pedestrian flows.png preview Preview for 'Emergence example: pedestrian flows' over 7 years ago, by Giangiacomo Bravo Download

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