Solution
Clearview Intelligence developed a solution, with the client Scotland Transerv, where the VAS warning of ‘vehicles turning’ would only trigger when a vehicle is approaching the sign. This ensures that regular users of the route do not become complacent as they might with a static sign. The dual use of the VAS to also warn drivers that they are travelling too fast maximizes the impact of this installation.
To activate the VAS, vehicles are detected ahead of the stop line on the B7076 and on the right hand turn lane on the A701. Inductive loops are combined with the M680 Vehicle Count and Classification system to provide this vehicle detection.
Given the rural location of this junction, the solution needed to work without access to mains power. Clearview installed two solar panels; one to power the M680 Vehicle Count and Classification system and another to power the VAS.
Combining vehicle activated and fixed messages in this way provides clear guidance to drivers on potential hazards on the road ahead. Tailoring the warnings to the situation on the road that the driver is experiencing at that very moment significantly increases the effectiveness of the warnings, ensuring drivers don’t become complacent, adhere to the speed limit and approach the junction with caution.
Download PDF: Route safety with VAS warning system on the A701
