globals [ roads ;; patches with white color ] breed [ houses house ] breed [ trees tree ] breed [ cars car ] breed [ people person ] cars-own [ passenger ;; passenger on cars ] people-own [ wait-time ;; waiting time for a passage time-on-cars ;; lenght of the passage time-at-work ;; time between time-on-cars and wait-time travel ;; number of passage done meet ;; number of meeting between pedestrian and jungo-person ] ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; SETUP ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; to setup ca setup-patches setup-roads setup-houses setup-trees setup-cars setup-people do-plots end to setup-patches ask patches [ set pcolor gray + 3 if ((pxcor > 6) and (pxcor < 12) and (pycor < -12) and (pycor > -17)) ;;the greeen section is the park [set pcolor green + 2] ] end to setup-roads ask patches with [ pycor >= -13 and pycor <= -12] ;; the first horizontal street from the bottom [set pcolor white] ask patches with [ pycor >= 0 and pycor <= 1] ;; the central horizontal street [set pcolor white] ask patches with [ pycor >= 12 and pycor <= 13] ;; the last horizontal street from the bottom [set pcolor white] ask patches with [ pxcor >= -13 and pxcor <= -12] ;; the vertical street on the left [set pcolor white] ask patches with [ pxcor >= 0 and pxcor <= 1] ;; the central vertical street [set pcolor white] ask patches with [ pxcor >= 12 and pxcor <= 13] ;; the vertical street on the right [set pcolor white] set roads patches with [ pcolor = white ] ;; all street have white color end to setup-houses set-default-shape houses "house" create-houses 2 ask houses [ set size 3 put-on-intersection-1 put-on-intersection-2 ] end to put-on-intersection-1 ;; yellow house represents a house ask house 0 [ move-to one-of patches with [ pxcor = -10 and pycor = 3 ] set color yellow] end to put-on-intersection-2 ;; brown house represents a school ask house 1 [ move-to one-of patches with [ pxcor = 10 and pycor = 3 ] set color brown] end to setup-trees ;; these are the trees in the park set-default-shape trees "tree" create-trees 4 ask trees [ set color green - 2 set size 2 move-to one-of patches with [ pcolor = green + 2 ]] end to setup-cars set-default-shape cars "car top" create-cars Num-cars ;; Cars not Jungo. [ set color sky + 2 set size 1.8 set passenger 0 ] create-cars Num-jungo-cars ;; Jungo Cars. [ set color orange set size 1.9 set passenger 0 ] ask cars [ if ((heading >= 0) and (heading < 90)) ;; all Cars have a direction. [ move-to one-of roads with [pxcor = -12 or pxcor = 1 or pxcor = 13] ;; when their direction is north or north-east they go to NORTH. set heading 0] if ((heading >= 90) and (heading < 180)) ;; when their direction is east or south-east they go to EAST. [ move-to one-of roads with [pycor = -13 or pycor = 0 or pycor = 12] set heading 90] if ((heading >= 180) and (heading < 270)) ;; when their direction is south or south-west they go to SOUTH. [move-to one-of roads with [pxcor = -13 or pxcor = 0 or pxcor = 12] set heading 180] if ((heading >= 270) and (heading < 360)) ;; when their direction is west or north-west they go to WEST. [move-to one-of roads with [pycor = -12 or pycor = 1 or pycor = 13] set heading 270] ] end to setup-people set-default-shape people "person" create-people Num-people ;; People not Jungo. [ set color blue - 1 set size 1.3 set wait-time 0 set time-on-cars 0 set time-at-work 0 set travel 0 set meet 0 ] create-people Num-jungo-people ;; Jungo People. [ set color orange + 1 set size 1.3 set wait-time 0 set time-on-cars 0 set time-at-work 0 set travel 0 set meet 0 ] ask people ;; People must stay only on sidewalk. [move-to one-of patches with [pcolor != white] if(color = orange + 1) ;; Jungo people have a "label" that represents the number of steps that [set label (random 15) ;; they want to do on car. set label-color black if label = 0 [set label 1]] ] end ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; RUNNING PROCEDURE ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; to go move-cars move-people tick do-plots end to move-cars ask cars ;; it allows the movement of all Cars. [ifelse (not any? cars-on patch-ahead 1) ;; when there is not a car in front, she must step forward [fd 1] ;; otherwise step back. [fd -1] ] ask cars with [color = orange] ;; when Jungo Car meets a Jungo Person, she must stop and put [if (any? people-here with [color = orange + 1] and (passenger < 4)) ;; the person on but only if she has less than 4 passengers. [wait 1 set passenger (passenger + 1)] ;; when Jungo Car has a passenger, she notes an additional passenger. if((passenger = 4) and (any? people-here with [color = orange + 1])) ;; when Jungo Car has 4 passengers, she does not stop even if [fd 1] ;; there is a Jungo Person. if (passenger >= 1) ;; when Jungo Car has a passenger at least, she becomes lime. [set color lime]] ask cars with [color = lime] [if (any? people-here with [color = orange + 1] and (passenger < 4)) [wait 1 set passenger (passenger + 1)] if((passenger = 4) and (any? people-here with [color = orange + 1])) [fd 1] ] ask cars with [color = sky + 2] ;; JUNGO DIFFUSION: when Cars not Jungo meet a Person that has become Jungo, [ if (any? people-here with [label-color = white]) ;; they become Jungo too. [set color orange]] end to move-people ask people with [color = blue - 1] [ move-to one-of patches with [ pcolor != white ] ;; People not Jungo must go only on sidewalk. if(any? people-here with [color != blue - 1]) ;; JUNGO DIFFUSION: when People not Jungo meet a Jungo Person for ten times, [set meet (meet + 1)] ;; they become Jungo too and they take a "label" as old Jungo if (meet = 10) ;; People. This label has a different color: white instead of black. [set color orange + 1 set label (random 15) if(label = 0) [set label (random 15)] set wait-time 0 set time-on-cars 0 set time-at-work 0 set travel 0] ] ask people with [color = orange + 1] ;; Jungo People can go into street to ask for a passage. [every 1 [set wait-time (wait-time + 1)] ifelse [pcolor] of patch-here != white [fd 1] [if ((any? cars-here with [color = orange] with [passenger < 4]) ;; when there is a Jungo Car (with color orange or color lime) with less than 4 passengers, or (any? cars-here with [color = lime] with [passenger < 4])) ;; they become red and invisible. [move-to one-of cars-here set color red hide-turtle ask cars with [color = orange and passenger < 4] [set passenger (passenger + 1)] set wait-time 0] if not (any? cars-here with [color = orange] with [passenger < 4]) ;; when People do not find a Jungo Car, they come back for a step and [back 1 ;; change their direction ramdomly. set heading (random (3 * 90))]] ] ask people with [color = red] ;; in this moment Jungo Person is like on Car, so she activates the counter time-on-cars [ set time-on-cars (time-on-cars + 1) if(label = time-on-cars) ;; when time-on-cars is equal to her label, she gets out, stops the counter time-on-cars [move-to one-of neighbors with [pcolor != white] ;; and notes an additional number of travel. set travel (travel + 1) set time-on-cars (time-on-cars) ask cars with [color = lime and passenger <= 4] ;; when passenger gets out, Jungo Car subtracts a passenger. [ if(passenger = 4) [set passenger 3] if(passenger = 3) [set passenger 2] if (passenger = 2) [set passenger 1] if (passenger = 1) [set passenger 0 set color orange]] set color yellow ;; when Jungo People get out, they take color yellow and become visible. show-turtle] ] ask people with [color = yellow] [ set time-at-work (time-at-work + 1) ;; when People have color yellow we assume that they are working. The counter if (label = time-at-work) ;; time-at-work starts and has a duration equal to their label. Then when the counter [set color orange + 1 ;; stops, they become orange and start again to ask for a passage. set time-at-work 0] set wait-time 0 set time-on-cars 0 ] end ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; PLOTTING ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; to do-plots ;; we compute the average of the variables "wait-time" and "travel". plot-new-value "Average Waiting Time" mean [ wait-time ] of people with [color = orange + 1] plot-new-value "Average Travel Number" mean [travel] of people with [color != blue - 1] end to plot-new-value [ name-of-plot value ] set-current-plot name-of-plot plot value end @#$#@#$#@ GRAPHICS-WINDOW 214 10 717 534 16 16 14.94 1 10 1 1 1 0 1 1 1 -16 16 -16 16 0 0 1 ticks BUTTON 107 11 193 70 Setup setup NIL 1 T OBSERVER NIL NIL NIL NIL SLIDER 20 167 192 200 Num-cars Num-cars 0 200 55 1 1 NIL HORIZONTAL SLIDER 19 260 191 293 Num-people Num-people 0 200 62 1 1 NIL HORIZONTAL BUTTON 8 11 91 70 Go go T 1 T OBSERVER NIL NIL NIL NIL BUTTON 44 96 146 129 Go-on-tick go NIL 1 T OBSERVER NIL NIL NIL NIL PLOT 743 16 1233 344 Average Waiting Time Time Average wait 0.0 100.0 0.0 5.0 true false PENS "default" 1.0 0 -2674135 true PLOT 746 383 1235 529 Average Travel Number Time Travel 0.0 10.0 0.0 2.0 true false PENS "default" 1.0 1 -11783835 true MONITOR 58 460 197 505 Jungo People Diffusion count people with [label-color = white]\nwith [color != blue - 1]\n 17 1 11 MONITOR 57 405 199 450 Jungo Cars Diffusion count cars with [ color != sky + 2 and size = 1.8] \n 17 1 11 SLIDER 19 204 191 237 Num-jungo-cars Num-jungo-cars 0 200 20 1 1 NIL HORIZONTAL SLIDER 18 297 190 330 Num-jungo-people Num-jungo-people 0 200 33 1 1 NIL HORIZONTAL @#$#@#$#@ WHAT IS IT? ----------- The model simulates the dynamics of Jungo, a system based on a modern vision of hitch-hiking. Every Jungo-person has a card that identifies herself and allows her to obtein a passage from a Jungo-motorist who partecipates to the system. Our aim is to monitoring the average of wait time and of travel in order to valuate the efficiency of this possible alternative movement. HOW IT WORKS ------------ There are two agentsets: cars and people. Jungo-cars and Jungo-people are orange while other agents are blue. Cars can move only into roads, while people move randomly on sidewalk. When Jungo-people want a passage, they go into roads and ask it. If there is a Jungo-car, it stops and puts the passenger into itself. After the travel, the passenger goes at work, changing her color in yellow, and then ask a new passage. It is important to underline that every car can have a maximum of four passengers, indeed the car becomes green when it is occupied by a person at least. If the car is full, it does not stop. There is a mechanism of diffusion, that allows blue agents to become Jungo. Indeed, when blue people meet Jungo ones, after ten times, they become Jungo too and, when a new Jungo person meets a blue car, this one becomes Jungo. HOW TO USE IT ------------- Start the simulation by clicking "Setup". Then, after clicking "Go", the turtles start moving and interacting in the way explained above. If you want to stop the simulation, you have to click again the "Go" button. Instead, if you click "Go-on-tick", the model runs the simulation for only a tick. Button: Setup It creates turtles and resets everything to the beginning values. Button: Go It starts the simulation. Button: Go-on-tick It allows to run the model on step. Slider: Num-cars It allows to choose the number of blue cars. Slider: Num-jungo-cars It allows to choose the number of Jungo-cars. Slider: Num-people It allows to choose the number of blue people. Slider: Num-jungo-people It allows to choose the number of Jungo-people. Monitor: Jungo People Diffusion It shows how many people become Jungo. Monitor: Jungo Cars Diffusion It shows how many cars become Jungo. Plot: Average Waiting Time It represents the average of Jungo-people wait time. Plot: Average Travel Number It represents the average of travel that Jungo people do during the simulation. THINGS TO NOTICE ---------------- It is important to notice that only Jungo-people have active this variables: "wait-time": when they are waiting for a passage; "time-on-cars": when they are doing a travel; "travel": that count the number of travel done; "time-at-work": when they are yellow and have just done a travel. THINGS TO TRY ------------- It is interesting to modify the values of the sliders for analyse the average of waiting time, the average of travels done and the phenomenon of diffusion. EXTENDING THE MODEL ------------------- It could be interesting find a mechanism that shows that the number of cars decreases as a consequence of the diffusion because some motorists prefer to become Jungo-people and, not using their cars, they occupate free car seats of other vehicles. This has as a result the decreasing of traffic with well-being for society. RELATED MODELS -------------- Traffic Grid from NetLogo Library. CREDITS AND REFERENCES ---------------------- Jungo website; http://www.jungo.it/ @#$#@#$#@ default true 0 Polygon -7500403 true true 150 5 40 250 150 205 260 250 airplane true 0 Polygon -7500403 true true 150 0 135 15 120 60 120 105 15 165 15 195 120 180 135 240 105 270 120 285 150 270 180 285 210 270 165 240 180 180 285 195 285 165 180 105 180 60 165 15 arrow true 0 Polygon -7500403 true true 150 0 0 150 105 150 105 293 195 293 195 150 300 150 box false 0 Polygon -7500403 true true 150 285 285 225 285 75 150 135 Polygon -7500403 true true 150 135 15 75 150 15 285 75 Polygon -7500403 true true 15 75 15 225 150 285 150 135 Line -16777216 false 150 285 150 135 Line -16777216 false 150 135 15 75 Line -16777216 false 150 135 285 75 bug true 0 Circle -7500403 true true 96 182 108 Circle -7500403 true true 110 127 80 Circle -7500403 true true 110 75 80 Line -7500403 true 150 100 80 30 Line -7500403 true 150 100 220 30 butterfly true 0 Polygon -7500403 true true 150 165 209 199 225 225 225 255 195 270 165 255 150 240 Polygon -7500403 true true 150 165 89 198 75 225 75 255 105 270 135 255 150 240 Polygon -7500403 true true 139 148 100 105 55 90 25 90 10 105 10 135 25 180 40 195 85 194 139 163 Polygon -7500403 true true 162 150 200 105 245 90 275 90 290 105 290 135 275 180 260 195 215 195 162 165 Polygon -16777216 true false 150 255 135 225 120 150 135 120 150 105 165 120 180 150 165 225 Circle -16777216 true false 135 90 30 Line -16777216 false 150 105 195 60 Line -16777216 false 150 105 105 60 car false 0 Polygon -7500403 true true 300 180 279 164 261 144 240 135 226 132 213 106 203 84 185 63 159 50 135 50 75 60 0 150 0 165 0 225 300 225 300 180 Circle -16777216 true false 180 180 90 Circle -16777216 true false 30 180 90 Polygon -16777216 true false 162 80 132 78 134 135 209 135 194 105 189 96 180 89 Circle -7500403 true true 47 195 58 Circle -7500403 true true 195 195 58 car top true 0 Polygon -7500403 true true 151 8 119 10 98 25 86 48 82 225 90 270 105 289 150 294 195 291 210 270 219 225 214 47 201 24 181 11 Polygon -16777216 true false 210 195 195 210 195 135 210 105 Polygon -16777216 true false 105 255 120 270 180 270 195 255 195 225 105 225 Polygon -16777216 true false 90 195 105 210 105 135 90 105 Polygon -1 true false 205 29 180 30 181 11 Line -7500403 false 210 165 195 165 Line -7500403 false 90 165 105 165 Polygon -16777216 true false 121 135 180 134 204 97 182 89 153 85 120 89 98 97 Line -16777216 false 210 90 195 30 Line -16777216 false 90 90 105 30 Polygon -1 true false 95 29 120 30 119 11 circle false 0 Circle -7500403 true true 0 0 300 circle 2 false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 cow false 0 Polygon -7500403 true true 200 193 197 249 179 249 177 196 166 187 140 189 93 191 78 179 72 211 49 209 48 181 37 149 25 120 25 89 45 72 103 84 179 75 198 76 252 64 272 81 293 103 285 121 255 121 242 118 224 167 Polygon -7500403 true true 73 210 86 251 62 249 48 208 Polygon -7500403 true true 25 114 16 195 9 204 23 213 25 200 39 123 cylinder false 0 Circle -7500403 true true 0 0 300 dot false 0 Circle -7500403 true true 90 90 120 face happy false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 255 90 239 62 213 47 191 67 179 90 203 109 218 150 225 192 218 210 203 227 181 251 194 236 217 212 240 face neutral false 0 Circle -7500403 true true 8 7 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Rectangle -16777216 true false 60 195 240 225 face sad false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 168 90 184 62 210 47 232 67 244 90 220 109 205 150 198 192 205 210 220 227 242 251 229 236 206 212 183 fish false 0 Polygon -1 true false 44 131 21 87 15 86 0 120 15 150 0 180 13 214 20 212 45 166 Polygon -1 true false 135 195 119 235 95 218 76 210 46 204 60 165 Polygon -1 true false 75 45 83 77 71 103 86 114 166 78 135 60 Polygon -7500403 true true 30 136 151 77 226 81 280 119 292 146 292 160 287 170 270 195 195 210 151 212 30 166 Circle -16777216 true false 215 106 30 flag false 0 Rectangle -7500403 true true 60 15 75 300 Polygon -7500403 true true 90 150 270 90 90 30 Line -7500403 true 75 135 90 135 Line -7500403 true 75 45 90 45 flower false 0 Polygon -10899396 true false 135 120 165 165 180 210 180 240 150 300 165 300 195 240 195 195 165 135 Circle -7500403 true true 85 132 38 Circle -7500403 true true 130 147 38 Circle -7500403 true true 192 85 38 Circle -7500403 true true 85 40 38 Circle -7500403 true true 177 40 38 Circle -7500403 true true 177 132 38 Circle -7500403 true true 70 85 38 Circle -7500403 true true 130 25 38 Circle -7500403 true true 96 51 108 Circle -16777216 true false 113 68 74 Polygon -10899396 true false 189 233 219 188 249 173 279 188 234 218 Polygon -10899396 true false 180 255 150 210 105 210 75 240 135 240 house false 0 Rectangle -7500403 true true 45 120 255 285 Rectangle -16777216 true false 120 210 180 285 Polygon -7500403 true true 15 120 150 15 285 120 Line -16777216 false 30 120 270 120 leaf false 0 Polygon -7500403 true true 150 210 135 195 120 210 60 210 30 195 60 180 60 165 15 135 30 120 15 105 40 104 45 90 60 90 90 105 105 120 120 120 105 60 120 60 135 30 150 15 165 30 180 60 195 60 180 120 195 120 210 105 240 90 255 90 263 104 285 105 270 120 285 135 240 165 240 180 270 195 240 210 180 210 165 195 Polygon -7500403 true true 135 195 135 240 120 255 105 255 105 285 135 285 165 240 165 195 line true 0 Line -7500403 true 150 0 150 300 line half true 0 Line -7500403 true 150 0 150 150 pentagon false 0 Polygon -7500403 true true 150 15 15 120 60 285 240 285 285 120 person false 0 Circle -7500403 true true 110 5 80 Polygon -7500403 true true 105 90 120 195 90 285 105 300 135 300 150 225 165 300 195 300 210 285 180 195 195 90 Rectangle -7500403 true true 127 79 172 94 Polygon -7500403 true true 195 90 240 150 225 180 165 105 Polygon -7500403 true true 105 90 60 150 75 180 135 105 plant false 0 Rectangle -7500403 true true 135 90 165 300 Polygon -7500403 true true 135 255 90 210 45 195 75 255 135 285 Polygon -7500403 true true 165 255 210 210 255 195 225 255 165 285 Polygon -7500403 true true 135 180 90 135 45 120 75 180 135 210 Polygon -7500403 true true 165 180 165 210 225 180 255 120 210 135 Polygon -7500403 true true 135 105 90 60 45 45 75 105 135 135 Polygon -7500403 true true 165 105 165 135 225 105 255 45 210 60 Polygon -7500403 true true 135 90 120 45 150 15 180 45 165 90 sheep false 0 Rectangle -7500403 true true 151 225 180 285 Rectangle -7500403 true true 47 225 75 285 Rectangle -7500403 true true 15 75 210 225 Circle -7500403 true true 135 75 150 Circle -16777216 true false 165 76 116 square false 0 Rectangle -7500403 true true 30 30 270 270 square 2 false 0 Rectangle -7500403 true true 30 30 270 270 Rectangle -16777216 true false 60 60 240 240 star false 0 Polygon -7500403 true true 151 1 185 108 298 108 207 175 242 282 151 216 59 282 94 175 3 108 116 108 target false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 Circle -7500403 true true 60 60 180 Circle -16777216 true false 90 90 120 Circle -7500403 true true 120 120 60 tree false 0 Circle -7500403 true true 118 3 94 Rectangle -6459832 true false 120 195 180 300 Circle -7500403 true true 65 21 108 Circle -7500403 true true 116 41 127 Circle -7500403 true true 45 90 120 Circle -7500403 true true 104 74 152 triangle false 0 Polygon -7500403 true true 150 30 15 255 285 255 triangle 2 false 0 Polygon -7500403 true true 150 30 15 255 285 255 Polygon -16777216 true false 151 99 225 223 75 224 truck false 0 Rectangle -7500403 true true 4 45 195 187 Polygon -7500403 true true 296 193 296 150 259 134 244 104 208 104 207 194 Rectangle -1 true false 195 60 195 105 Polygon -16777216 true false 238 112 252 141 219 141 218 112 Circle -16777216 true false 234 174 42 Rectangle -7500403 true true 181 185 214 194 Circle -16777216 true false 144 174 42 Circle -16777216 true false 24 174 42 Circle -7500403 false true 24 174 42 Circle -7500403 false true 144 174 42 Circle -7500403 false true 234 174 42 turtle true 0 Polygon -10899396 true false 215 204 240 233 246 254 228 266 215 252 193 210 Polygon -10899396 true false 195 90 225 75 245 75 260 89 269 108 261 124 240 105 225 105 210 105 Polygon -10899396 true false 105 90 75 75 55 75 40 89 31 108 39 124 60 105 75 105 90 105 Polygon -10899396 true false 132 85 134 64 107 51 108 17 150 2 192 18 192 52 169 65 172 87 Polygon -10899396 true false 85 204 60 233 54 254 72 266 85 252 107 210 Polygon -7500403 true true 119 75 179 75 209 101 224 135 220 225 175 261 128 261 81 224 74 135 88 99 wheel false 0 Circle -7500403 true true 3 3 294 Circle -16777216 true false 30 30 240 Line -7500403 true 150 285 150 15 Line -7500403 true 15 150 285 150 Circle -7500403 true true 120 120 60 Line -7500403 true 216 40 79 269 Line -7500403 true 40 84 269 221 Line -7500403 true 40 216 269 79 Line -7500403 true 84 40 221 269 x false 0 Polygon -7500403 true true 270 75 225 30 30 225 75 270 Polygon -7500403 true true 30 75 75 30 270 225 225 270 @#$#@#$#@ NetLogo 4.1 @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ default 0.0 -0.2 0 1.0 0.0 0.0 1 1.0 0.0 0.2 0 1.0 0.0 link direction true 0 Line -7500403 true 150 150 90 180 Line -7500403 true 150 150 210 180 @#$#@#$#@ 0 @#$#@#$#@