THE INTEGRATED TRAFFIC CONTROL AND MOTORIST INFORMATION SYSTEM FOR THE SECOND NATIONAL FREEWAY IN TAIWAN

The first freeway traffic control system in the Taiwan area was established in 1984 with the Sun Yat-Sen National Freeway, six years after the highway was opened to traffic. Some distinguishing features of the system are: (1) enhanced traffic management and safety control of freeway tunnels (including strict control of travel quality in tunnels); mitigation and dissipation of traffic congestion through fast detection, verification of and response to incidents; and automatic extinction of fires; (2) traffic diversion and guidance on freeway/interchange areas; (3) ramp control on congested freeway segments; (4) a high-capacity fiber-optic communication network; and (5) upgrading of automated traffic management functions in a central computer system.