Achievements of Nagano ITCS/PTPS

The aim of PTPS (Public Transportation Priority Systems), implemented as one of the urban traffic management systems (UTMS) at the winter Olympic games held in Nagano Prefecture in February 1998, was to support the smooth operation of the games by controlling traffic signals to ensure punctual operation of Olympic vehicles transporting Olympic personnel such as athletes and officers concerned directly with the games. The controlled roads were also used daily by the citizens of Nagano City, so control constants also had to be designed considering these conditions. This paper outlines this system operated by the Nagano Prefectural Police Headquarters.