Guangzhou Inner Ring Road Traffic Surveillance and Control System
Arup was commissioned for the Guangzhou inner ring road (GIRR) traffic surveillance and control system (TSCS) during its procurement and installation.
The objective of the GIRR TSCS is to apply intelligent traffic management technologies to increase the efficiency and safety of the heavily used expressway, with further plans to interface with the outer ring expressway system in Guangzhou.
Commencing with tender evaluation in November 2004, construction works, including technology transfer to the client and users, is scheduled to be completed in early 2007.
What is the GIRR?
- A 26.7km dual three-lane carriageway on viaducts and at-grade roads, with three river crossing bridges and a passenger tunnel.
- Located within the central district of Guangzhou, it is the major road access for the downtown area.
- With 14 interchanges and 73 independent entrances and exit ramps, access control is particularly important to ensure smooth traffic flow both on the GIRR and the local roads.
Arup has advised on the following subsystems of the TSCS:
- traffic data acquisition
- entrance ramp control
- mainline monitoring and control
- exit ramp congestion information
- traffic violation photographing
- closed circuit television.
This is a major contract of the Guangzhou City Centre Transport Project financed by the World Bank.
Client
Guangzhou City Centre Transport Project Leading Group Office
