diff --git a/noisemodelling-emission/src/main/resources/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossos_2015.json b/noisemodelling-emission/src/main/resources/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossos_2015.json
index 699a47764..c9be18e75 100644
--- a/noisemodelling-emission/src/main/resources/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossos_2015.json
+++ b/noisemodelling-emission/src/main/resources/org/noise_planet/noisemodelling/emission/road/cnossos/RoadCnossos_2015.json
@@ -99,12 +99,12 @@
       "crossing": {
         "k": 1,
         "cr": -4.0,
-        "cp": 9
+        "cp": 0.0
       },
       "roundabout": {
         "k": 2,
         "cr": -2.3,
-        "cp": 6.7
+        "cp": 0.0
       },
       "ar": [
         84.0,
@@ -127,24 +127,24 @@
         40.1
       ],
       "ap": [
-        101.0,
-        96.5,
-        98.8,
-        96.8,
-        98.6,
-        95.2,
-        88.8,
-        82.7
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0
       ],
       "bp": [
-        -1.9,
-        4.7,
-        6.4,
-        6.5,
-        6.5,
-        6.5,
-        6.5,
-        6.5
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0
       ]
     },
     "3": {
@@ -162,12 +162,12 @@
       "crossing": {
         "k": 1,
         "cr": -4.0,
-        "cp": 9
+        "cp": 0.0
       },
       "roundabout": {
         "k": 2,
         "cr": -2.3,
-        "cp": 6.7
+        "cp": 0.0
       },
       "ar": [
         87.0,
@@ -190,24 +190,24 @@
         40.6
       ],
       "ap": [
-        104.4,
-        100.6,
-        101.7,
-        101.0,
-        100.1,
-        95.9,
-        91.3,
-        85.3
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0
       ],
       "bp": [
         0.0,
-        3.0,
-        4.6,
-        5.0,
-        5.0,
-        5.0,
-        5.0,
-        5.0
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0
       ]
     },
     "4a": {