An MoU signed in Copenhagen between Aldridge Traffic Controllers
(ATC), traffic light manufacturer Braums and CAV specialist Cohda Wireless
will allow SCATS (Sydney Coordinated Adaptive Traffic System) traffic light system to incorporate V2X communications.
Connecting one of Cohda’s roadside unit to the SCATS controller, provides high granularity traffic information, including the direction and speed of connected vehicles, to inform the adaptive signal timing and thereby optimise traffic flow.
It will also provide safety information, such as the presence of pedestrians and cyclists (by detecting their smartphones) with the possibility of sending alerts to connected vehicles in the vicinity and the control room.
In addition, the V2X enhanced SCATS system can be utilised for vehicle prioritisation (for buses and/or freight) and emergency vehicle pre-emption by fitting an OBU. The signal timing information can be transmitted to connected cars to facilitate the more economic and environmentally preferable ‘green wave’ and ‘speed to green’ driving style.
SCATS is used in 180 cities around the world and according to Paul Gray, CEO of Cohda Wireless, and Andrew Bull, managing director of ATC and Braums, adding the V2X not only increases functionality today but also ‘future proofs’ the system for when connected vehicles are the norm.