Active Traffic Management applications in Greece. The case of Attica Tollway

Active Traffic Management (ATM) has been recently gaining a lot of attention world-wide after the successful implementation in M42 in the UK. The primary goal of ATM applications is the reduction of traffic incidents and the resulting improvement of traffic conditions. Dynamic traffic management practices can have different impacts and effectiveness in different networks. This paper discusses the opportunities and challenges related to the use of ATM in Greece and presents empirical results from the first related applications in the Attica Tollway. Furthermore, a statistical analysis of data collected from the Attica Tollway application is performed, aiming at investigating the impact of speed-limit messages on traffic flow.