Real-time vehicle-actuated traffic signal system


In this project, LSCM develops a real-time vehicle-actuated traffic signal system that uses traffic flow data based on suitable detection technologies to derive the most suitable signal duration for better mobility.

  • Real-time vehicle-actuated traffic signal system
Research completion
Commercialisation opportunities
Technology licensing
Problem addressed

Hong Kong roads are normally busy and narrow. Traffic blockage may occur when two big vehicles encounter each other at the same time, resulting in traffic congestion. Although traffic data are collected from various data sources through the existing systems, they are seldom used to analysise for making intelligent decisions and actions for increasing mobility efficiency.

  • A narrow road segment can be configured from a single way two-lane to a one-lane two-way passage. The duration of green light and cycle times may vary according to the real-time traffic flow data at the road segment.
  • When opposite and/or idle vehicles within the traffic control area are detected, alerts will be displayed on electronic variable message signboards to warn motorists well ahead of time.
  • A multi-sensor platform is used for predictive analytics and real-time junction traffic signal control.
Key impact
  • With the new system, the commuting time will be reduced while the road safety will be enhanced. Hence the social cost of traffic jams and accidents may be reduced.
  • The deliverables of this project are in line with the Smart City Blueprint for Hong Kong to improve Hong Kong's mobility.
  • Bronze Medal in the 48th International Exhibition of Inventions of Geneva
  • Traffic management
Logistics and Supply Chain MultiTech R&D Centre (LSCM)

Logistics and Supply Chain MultiTech R&D Centre (LSCM) was founded in 2006, with funding from the Innovation and Technology Fund of The Government of the Hong Kong SAR, and is co-hosted by the University of Hong Kong, the Chinese University of Hong Kong and the Hong Kong University of Science and Technology. It aims to strengthen the local logistics sector and related industries by providing a one-stop resource for applied research and technology transfer, and to reinforce cooperation between the industry and research institutes to bring about meaningful and significant impact on the industry and the community. 

LSCM serves the industry by initiating research projects, contract research, as well as providing business matching opportunities, technology transfer and intellectual property commercialisation. LSCM initiates technology and knowledge transfer to the marketplace to promote industrial digitalisation, facilitate technology advancement and strengthen Hong Kong’s position as a leading logistics and commercial hub.