Combating congestion problems on freeways and urban centers, the vehicular traffic-flow modeling and control tools developed by Markos Papageorgiou are making travel safer and more efficient and are helping save energy and reduce emissions. His local ramp-metering algorithm ALINEA (developed in 1987) is recognized as a milestone in the field and is used around the world. The macroscopic simulation software METANET (developed in 1989) for freeway networks is still one of the most widely used traffic-flow tools. He introduced the concept of feedback in driver information and route guidance systems and contributed to the deployment of a large-scale implementation of travel-time displays in Paris, France, involving approximately 450 vehicle management systems. Developed in 2005, his coordinated ramp-metering algorithm HERO is widely considered the most advanced and efficient approach in this area.
An IEEE Life Fellow, Papageorgiou is a professor at the Technical University of Crete, Chania, Greece.