diff --git a/Profiles/bicycle/aspects/bicycle.safety.json b/Profiles/bicycle/aspects/bicycle.safety.json
index 241f033..fa78ae6 100644
--- a/Profiles/bicycle/aspects/bicycle.safety.json
+++ b/Profiles/bicycle/aspects/bicycle.safety.json
@@ -12,6 +12,15 @@
         "dismount": 0.2,
         "designated": 1.5
       },
+      "bicycle:class":{
+      	"-3": 0.5,
+      	"-2": 0.7,
+      	"-1": 0.9,
+      	"0": 1,
+      	"1": 1.1,
+      	"2": 1.3,
+      	"3": 1.5
+      },
       "motor_vehicle": {
         "no": 1.5,
         "destination": 1.4
@@ -41,7 +50,9 @@
         "residential": 0.9,
         "living_street": 0.95,
         "footway": 0.95,
-        "path": 0.9
+        "path": 0.9,
+        "#": "A road under construction often has various objects laying around, rough edges, .... -> chance to fall",
+        "construction": 0.6
       },
       "cycleway": {
         "#": "A distinct cycleway _always_ makes the road safer for cyclists, even if it is but a small lane. The default assumption is 'no', no cycleway, in which case the safety feeling is not improved",