diff --git a/.gitignore b/.gitignore
index 13ad527..80cb224 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 TrafficLights/obj/**
 *vshost*
 */*/*/TestResult.xml
+.suo
diff --git a/Readme.md b/Readme.md
index 2fbac91..02adc46 100644
--- a/Readme.md
+++ b/Readme.md
@@ -6,6 +6,8 @@ To run the unit tests install NUnit 2.6.4 console runner:
 
 https://github.com/nunit/nunitv2/releases/download/2.6.4/NUnit-2.6.4.msi
 
+Solution and binaries provided are built with Visual Studio 2015.
+
 # Running a live simulation
 
 From a command prompt run
diff --git a/TrafficLights/TrafficIntersectionModel.cs b/TrafficLights/TrafficIntersectionModel.cs
index 68be4ea..684f6c9 100755
--- a/TrafficLights/TrafficIntersectionModel.cs
+++ b/TrafficLights/TrafficIntersectionModel.cs
@@ -9,11 +9,6 @@ public enum LightStates {
             NorthSouthYellowEastWestRed
         }
 
-        public TrafficIntersectionModel() {
-            LightState = LightStates.NorthSouthGreenEastWestRed;
-            LastStateTransitionAt = DateTime.Now;
-        }
-
         public TrafficIntersectionModel(LightStates lightState, DateTime lastTransitionAt) {
             LightState = lightState;
             LastStateTransitionAt = lastTransitionAt;
diff --git a/TrafficLights/bin/Debug/TrafficLights.exe b/TrafficLights/bin/Debug/TrafficLights.exe
index c698ade..5cec7ff 100755
Binary files a/TrafficLights/bin/Debug/TrafficLights.exe and b/TrafficLights/bin/Debug/TrafficLights.exe differ
diff --git a/TrafficLights/bin/Debug/TrafficLights.pdb b/TrafficLights/bin/Debug/TrafficLights.pdb
index e3a6a50..a56eff1 100755
Binary files a/TrafficLights/bin/Debug/TrafficLights.pdb and b/TrafficLights/bin/Debug/TrafficLights.pdb differ