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diff --git a/msi.gama.models/models/Toy Models/Traffic/models/Netlogo - Traffic model - 1 road.gaml b/msi.gama.models/models/Toy Models/Traffic/models/Netlogo - Traffic model - 1 road.gaml
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+/***
+* Name: NetlogoTrafficmodel
+* Author: Benoit Gaudou (for the reimplementation), Wilensky, U. (for the original model)
+* Description: This model is a reimplementation of the Netlogo model "Traffic model"
+*     Wilensky, U. (1997). NetLogo Traffic Basic model. http://ccl.northwestern.edu/netlogo/models/TrafficBasic. 
+*     Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
+*  It has been implemented with the Netlogo platform:
+*     Wilensky, U. (1999). NetLogo. http://ccl.northwestern.edu/netlogo/. 
+*     Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
+* Tags: traffic, transport, congestion, netlogo
+***/
+
+model NetlogoTrafficmodel
+
+global torus: true {
+	int pavement_width <- 50;
+	int pavement_height <- 9;
+	
+	geometry shape <- rectangle(pavement_width * 2, pavement_height * 2);	
+	image_file voit_image_file <- image_file("../includes/voit.png");
+	image_file voit_red_image_file <- image_file("../includes/voit_red.png");
+
+	int y_road <- 4;
+	car sample_car;
+	
+	int nb_cars <- 25 parameter: true;
+	float acceleration <- 0.0045 min: 0.0 max: 0.01 parameter: true;
+	float deceleration <- 0.026 min: 0.0 max: 0.1 parameter: true;	
+	
+	float max_speed <- 50.0;
+	
+	init {
+		list<pavement> road <- pavement where(each.grid_y = y_road);
+		create car number: nb_cars {
+			pavement free_pavement <- one_of(road where(empty(car inside self)));
+			if(free_pavement != nil) {
+				my_pavement <- free_pavement;
+				location <- my_pavement.location;
+			} else {
+				do die;
+			}
+			heading <- 0.0;
+		}
+		
+		sample_car <- one_of(car);
+		ask sample_car {
+			color <- #red;
+			icon <- voit_red_image_file;
+		}
+	}
+}
+
+grid pavement height: pavement_height width: pavement_width {
+	init {
+		if( (grid_y >= 3) and (grid_y <=5) ) {
+			color <- #white;
+		} else {
+			color <- #black;
+		}
+	}
+}
+
+species car skills: [moving] {
+	float speed_limit;
+	float speed_min;
+	rgb color;
+	image_file icon;
+	pavement my_pavement;
+	
+	init {
+		color <- #blue;
+		icon <- voit_image_file;
+		speed <- 0.1 +rnd(0.9);
+		speed_limit <- 1.0;
+		speed_min <- 0.0;
+	}
+	
+	reflex patch_ahead {
+		my_pavement <- pavement first_with(each overlaps self);
+		pavement next_pavement <- pavement first_with( 
+										(each.grid_y = my_pavement.grid_y) and 
+										(each.grid_x = (my_pavement.grid_x + signum(cos(heading))) mod pavement_width)
+		);
+		car car_ahead <- first(car inside next_pavement);
+		if(car_ahead != nil) {
+			do slow_down(car_ahead);
+		} else {
+			do speed_up;
+		}
+		
+		do move heading: heading;
+	}
+
+	action slow_down(car car_ahead) {
+		speed <- max(speed_min, car_ahead.speed - deceleration) ;
+	}
+	
+	action speed_up {
+		speed <- min(speed + acceleration, speed_limit);
+	}
+
+	aspect rect {
+		draw rectangle(1.5,1) rotated_by heading color: color border: #black;
+	}
+	
+	aspect icon {
+		draw icon at: location size: 3 rotate: heading ;
+	}	
+}
+
+experiment NetlogoTrafficmodel type: gui {
+	float minimum_cycle_duration <- 0.01;
+	
+	output {
+		layout #vertical;
+		
+		display road type: opengl {
+			grid pavement;
+			species car aspect: icon;
+			
+		}
+		
+		display sp {
+			chart "speed" type: series {
+				data "red car" value: sample_car.speed * max_speed color: #red;
+				data "min speed" value: car min_of(each.speed) * max_speed color: #blue;
+				data "max speed" value: car max_of(each.speed) * max_speed color: #green;
+			}
+		}
+	}
+}
diff --git a/msi.gama.models/models/Toy Models/Traffic/models/Netlogo - Traffic model - 2 roads.gaml b/msi.gama.models/models/Toy Models/Traffic/models/Netlogo - Traffic model - 2 roads.gaml
new file mode 100644
index 0000000000..1a6b95c5b9
--- /dev/null
+++ b/msi.gama.models/models/Toy Models/Traffic/models/Netlogo - Traffic model - 2 roads.gaml	
@@ -0,0 +1,167 @@
+/***
+* Name: NetlogoTrafficmodel2
+* Author: Benoit Gaudou
+* Description: This model is a variation of the "Netlogo - Traffic model - 1 road.gaml" in order to be able 
+*     to visualise the impacts of parameters on the congestion and compare 2 scenarios of acceleration-deceleration. 
+*     It is based on the Netlogo model "Traffic model".
+*     Wilensky, U. (1997). NetLogo Traffic Basic model. http://ccl.northwestern.edu/netlogo/models/TrafficBasic. 
+*     Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
+*  It has been implemented with the Netlogo platform:
+*     Wilensky, U. (1999). NetLogo. http://ccl.northwestern.edu/netlogo/. 
+*     Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
+* Tags: traffic, transport, congestion, netlogo
+***/
+
+model NetlogoTrafficmodel
+
+global torus: true {
+	int pavement_width <- 50;
+	int pavement_height <- 14;
+	
+	geometry shape <- rectangle(pavement_width * 2, pavement_height * 2);	
+	image_file voit_image_file <- image_file("../includes/voit.png");
+	image_file voit_red_image_file <- image_file("../includes/voit_red.png");
+	image_file voit_blue_image_file <- image_file("../includes/voit_blue.png");
+
+	int y_road1 <- 4;
+	int y_road2 <- 10;
+	list<car> cars_on_road1;
+	list<car> cars_on_road2;
+	car sample_car1;
+	car sample_car2;	
+	list<pavement> road1;
+	list<pavement> road2;
+	
+	int nb_cars <- 25;
+	float acceleration1 <- 0.0045 min: 0.0 max: 0.01 parameter: true;
+	float deceleration1 <- 0.026 min: 0.0 max: 0.1 parameter: true;	
+	float acceleration2 <- 0.0005 min: 0.0 max: 0.01 parameter: true;
+	float deceleration2 <- 0.004 min: 0.0 max: 0.1 parameter: true;	
+	float max_speed <- 50.0;
+	
+	init {
+		road1 <- pavement where(each.grid_y = y_road1);
+//		cars_on_road1 <- create_cars_on_road(nb_cars, road1);
+		cars_on_road1 <- create_cars_on_road(1, road1, acceleration1, deceleration1);
+		sample_car1 <- pick_sample(cars_on_road1, #red, voit_red_image_file);
+		
+		road2 <- pavement where(each.grid_y = y_road2);		
+//		cars_on_road2 <- create_cars_on_road(nb_cars, road2);
+		cars_on_road2 <- create_cars_on_road(1, road2, acceleration2, deceleration2);		
+		sample_car2 <- pick_sample(cars_on_road2, #blue, voit_blue_image_file);		
+	}
+	
+	reflex create_cars when: (length(car) < nb_cars * 2) and every(10 #cycles) {
+		do create_cars_on_road(1, road1, acceleration1, deceleration1);
+		do create_cars_on_road(1, road2, acceleration2, deceleration2);		
+	}
+	
+	list<car> create_cars_on_road(int num_cars, list<pavement> road, float acc, float dec){
+		create car number: num_cars returns: cars_on_road {
+			pavement free_pavement <- one_of(road where(empty(car inside self)));
+			if(free_pavement != nil) {
+				my_pavement <- free_pavement;
+				location <- my_pavement.location;
+				acceleration <- acc;
+				deceleration <- dec;
+			} else {
+				do die;
+			}
+			heading <- 0.0;
+		}
+		
+		return cars_on_road;		
+	}
+	
+	car pick_sample(list<car> cars, rgb col, image_file _icon) {
+		car a_car <- one_of(cars);
+		ask a_car {
+			color <- col;
+			icon <- _icon;
+		}	
+		return a_car;	
+	}
+
+	
+}
+
+grid pavement height: pavement_height width: pavement_width {
+	init {
+		if( (grid_y >= y_road1 - 1) and (grid_y <= y_road1 + 1) ) or 
+		  ( (grid_y >= y_road2 - 1) and (grid_y <= y_road2 + 1)) {
+			color <- #white;
+		} else {
+			color <- #black;
+		}
+	}
+}
+
+species car skills: [moving] {
+	float speed_limit;
+	float speed_min;
+	float acceleration;
+	float deceleration;
+	rgb color;
+	image_file icon;
+	pavement my_pavement;
+	
+	init {
+		color <- #blue;
+		icon <- voit_image_file;
+		speed <- 0.1 +rnd(0.9);
+		speed_limit <- 1.0;
+		speed_min <- 0.0;
+	}
+	
+	reflex patch_ahead {
+		my_pavement <- pavement first_with(each overlaps self);
+		pavement next_pavement <- pavement first_with( 
+										(each.grid_y = my_pavement.grid_y) and 
+										(each.grid_x = (my_pavement.grid_x + signum(cos(heading))) mod pavement_width)
+		);
+		car car_ahead <- first(car inside next_pavement);
+		if(car_ahead != nil) {
+			do slow_down(car_ahead);
+		} else {
+			do speed_up;
+		}
+		
+		do move heading: heading;
+	}
+
+	action slow_down(car car_ahead) {
+		speed <- max(speed_min, car_ahead.speed - deceleration) ;
+	}
+	
+	action speed_up {
+		speed <- min(speed + acceleration, speed_limit);
+	}
+
+	aspect rect {
+		draw rectangle(1.5,1) rotated_by heading color: color border: #black;
+	}
+	
+	aspect icon {
+		draw icon at: location size: 3 rotate: heading ;
+	}	
+}
+
+experiment NetlogoTrafficmodel type: gui {
+	float minimum_cycle_duration <- 0.01;
+	
+	output {
+		layout #vertical;
+		display road {
+			grid pavement /*lines: #black*/;
+			species car aspect: icon;
+			
+		}
+
+		display sp {
+			chart "speed" type: series {
+				data "red car" value: sample_car1.speed * max_speed color: sample_car1.color;
+				data "blue car" value: sample_car2.speed * max_speed color: sample_car2.color;
+			}
+		}
+	}
+}