1. Guide to Traffic Engineering Practice Series: Traffic Signals;Australasian Road Transport and Traffic Agencies (AUSTROADS),2003
2. Traffic Signal Timing Manual;Federal Highway Administration, US Department of Transportation (FHWA),2008
3. Manual on Uniform Traffic Control Devices for Streets and Highways;Federal Highway Administration,2012
4. Handbuch fuer die Bemessung von Strassenverkehrsanlagen (Highway Capacity Manual);FGSV,2001
5. Richtlinien fuer Lichtsignalanlagen – RiLSA (German Standard for Traffic Signals);FGSV,2015