initially no trains on track 

     1 slow tracks with durations (120, 30, 45, 5, 10); 
     trains are created in 90s intervals 

     1 fast track with durations (90, 15, 30, 5, 10); 
     trains are created in  210s intervals 

     car gate leaving duration = 2s, 
     car arriving duration  := 5s 

 Test-Results:
 The raw data can be found here. 

 The x-axis shows the time in seconds, the y-axis shows the remaining distance to leave the crossing area in percent of the total area. 

 Track 1: 

 Track 2 (fast track):

 Number of Cars: 

Statistics: 
 

Track	Average waiting duration  (relative)
track1	0.0%
track2	0.0%