In 2014, Autotoll collaborated with Jiangsu Intellitrans and was awarded a HKSAR Government contract for the design & implementation of the Traffic Control & Surveillance System (TCSS) for Hong Kong-Zhuhai-Macao Bridge. The system covers all Hong Kong Boundary Crossing Facilities, the Hong Kong link road and the southern connection of Tuen Mun-Chap Lap Kok Link.

Autotoll’s Traffic Control & Surveillance System (TCSS) consists of three individual Central Control Systems, each serving the operation at open road, tunnels & road network within Hong Kong International Airport, where interfaces among systems are established for traffic coordination & management during incidents. An advanced traffic control centre with all rounded surveillance cameras, automatic incident detectors, lane control signals, variable speed limit signs, variable message signs, overheight vehicle detectors, speed enforcement cameras and anemometer along the road, the real-time traffic condition can be instantly displayed and monitored in the traffic control centre.

The Central Control System deploys a “state-of-the-art expert rule-based” system for the generation of adaptive traffic plans, catering for scenarios such as adverse weather conditions and/or traffic incidents. The system provides a contingency solution to manage the traffic including lane control signals and message signs.

Highlights:

• Variable message signs with full colours in compliance with the latest EN-12966 standards were firstly deployed in TCSS at Hong Kong
• A communication system based on Ethernet over Synchronous Digital Hierarchy technology is deployed, connecting all the traffic field equipment to the Central Control System. This provides a highly reliable and resilient communication network
• Radio broadcast network is also installed along tunnels, featuring the “Radio Frequency over Fibre Optics” technology, to provide seamless radio broadcast to motorists as well as respective government departments.