1. BowersD. J., BrethertonR. D., BowenG. T., and WallG. T. Traffic Congestion Incident Detection. Report TRL 217. Transport Research Laboratory, Crowthorne, UK, 1996.
2. WoodK., PalmerJ., BrethertonR. D., and ShearnS. UTC Strategies For Congested Networks. Report TRL 240. Transport Research Laboratory, Crowthorne, UK, 1997.