diff --git a/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossosParameters.java b/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossosParameters.java
index 72de0b8ba..4ffcbfc6b 100644
--- a/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossosParameters.java
+++ b/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossosParameters.java
@@ -34,7 +34,7 @@ public class RoadCnossosParameters {
     private double qStudRatio; // Average ratio of the total volume of light vehicles per hour equipped with studded tyres during the period Ts_stud (in months)
 
 
-    private double Junc_dist; // Distance to junction
+    private double Junc_dist = 250; // Distance to junction
     private int Junc_type; // Junction type (k=1 traffic lights, k=2 roundabout)
 
     private double slopePercentage = 0; // slope s (in %), In the case of a bi-directional traffic flow, it is necessary to split the flow into two components and correct half for uphill and half for downhill.
diff --git a/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossosvar/RoadVehicleCnossosvar.java b/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossosvar/RoadVehicleCnossosvar.java
index cdcf359fa..7fe4c4de5 100644
--- a/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossosvar/RoadVehicleCnossosvar.java
+++ b/noisemodelling-emission/src/main/java/org/noise_planet/noisemodelling/emission/road/cnossosvar/RoadVehicleCnossosvar.java
@@ -71,8 +71,8 @@ public static double evaluate(RoadVehicleCnossosvarParameters parameters) throws
 
 
         // Rolling noise acceleration correction
-        // double coefficientJunctionDistance = Math.max(1 - Math.abs(Junc_dist) / 100, 0);
-        //RoadLvl = RoadLvl + getCr(veh_type, Junc_type, coeffVer) * coefficientJunctionDistance;
+        double coefficientJunctionDistance = Math.max(1 - Math.abs(Junc_dist) / 100, 0);
+        RoadLvl = RoadLvl + getCr(veh_type, Junc_type, coeffVer) * coefficientJunctionDistance;
 
 
         //Studied tyres
@@ -102,9 +102,9 @@ public static double evaluate(RoadVehicleCnossosvarParameters parameters) throws
         double aMax;
         switch (acc_type) {
             case 1:
-                //if (veh_type.equals("1") || veh_type.equals("2") || veh_type.equals("3")) {
-                 //   MotorLvl = MotorLvl + getCp(veh_type, Junc_type, coeffVer) * coefficientJunctionDistance;
-                //}
+                if (veh_type.equals("1") || veh_type.equals("2") || veh_type.equals("3")) {
+                   MotorLvl = MotorLvl + getCp(veh_type, Junc_type, coeffVer) * coefficientJunctionDistance;
+                }
                 break;
             case 2:
                 switch (veh_type) {
diff --git a/noisemodelling-emission/src/test/java/org/noise_planet/noisemodelling/emission/road/RoadVehicleCnossosvarTest.java b/noisemodelling-emission/src/test/java/org/noise_planet/noisemodelling/emission/road/RoadVehicleCnossosvarTest.java
index ed7d6b447..ce8679ae4 100644
--- a/noisemodelling-emission/src/test/java/org/noise_planet/noisemodelling/emission/road/RoadVehicleCnossosvarTest.java
+++ b/noisemodelling-emission/src/test/java/org/noise_planet/noisemodelling/emission/road/RoadVehicleCnossosvarTest.java
@@ -70,6 +70,7 @@ public void T02_OneVeh() throws IOException {
         rsParameters_dyn.setFrequency(FreqParam);
         rsParameters_dyn.setTemperature(Temperature);
         rsParameters_dyn.setRoadSurface(RoadSurface);
+        rsParameters_dyn.setJunc_dist(250);
         double res = RoadVehicleCnossosvar.evaluate(rsParameters_dyn);
         double res2 = RoadCnossos.evaluate(rsParameters_stat);
         assertEquals(res2, res, EPSILON_TEST1);