diff --git a/config.yml b/config.yml
index 023d992..058995e 100644
--- a/config.yml
+++ b/config.yml
@@ -17,3 +17,6 @@ reportInterval: 10
 nr_step_size : 300
 nr_day_to_simulate : 49
 pathfindFileName: pathfind.csv 
+flatInfectionRate: 0.2
+roadInfectionRate: 0.632
+offMapInfectionRate: 0.1
diff --git a/lib/Simulation/BasicInfectionModel.py b/lib/Simulation/BasicInfectionModel.py
index a199f7d..bc75b9f 100644
--- a/lib/Simulation/BasicInfectionModel.py
+++ b/lib/Simulation/BasicInfectionModel.py
@@ -118,7 +118,7 @@ def _distanceBasedInfection(self,agent, infectiousAgents, stepSize, timeStamp):
             - stepSize = [int] the step length
             - timeStamp = [TimeStamp] current timestamp
         """
-        gradient = 0.05 - self.roadInfectionRate / 2.0
+        gradient = 0.01 - self.roadInfectionRate / 1.5
         for stranger in infectiousAgents:
             distance = stranger.currentLocation.calculateDistance(agent.currentLocation)                
             infectionProbability = ((gradient* distance) + self.roadInfectionRate)/(24 * 3600/ stepSize)