Vehicle activated sign
Encyclopedia
Vehicle activated sign is a generic term for a type of road traffic sign
which displays a message conditional upon the presence, or speed, of a road vehicle. These devices are used for speed limit
enforcement
at some locations in the UK.
for the UK Department for Transport
one of the conclusions was that vehicle activated signs appear to be very effective in reducing speeds; in particular, they are capable of reducing the number of drivers who exceed the speed limit and who contribute disproportionately to the accident risk, without the need for enforcement such as safety cameras.
Traffic sign
Traffic signs or road signs are signs erected at the side of roads to provide information to road users. With traffic volumes increasing over the last eight decades, many countries have adopted pictorial signs or otherwise simplified and standardized their signs to facilitate international travel...
which displays a message conditional upon the presence, or speed, of a road vehicle. These devices are used for speed limit
Road speed limit enforcement in the United Kingdom
Road speed limit enforcement in the United Kingdom is the action taken by appropriately empowered authorities to attempt to persuade road vehicle users to comply with the speed limits in force on the UK's roads...
enforcement
Road speed limit enforcement in the United Kingdom
Road speed limit enforcement in the United Kingdom is the action taken by appropriately empowered authorities to attempt to persuade road vehicle users to comply with the speed limits in force on the UK's roads...
at some locations in the UK.
Speed enforcing
These signs activate if an approaching vehicle is detected to be exceeding a preset speed threshold. The speed limit and/or a warning message will illuminate on the sign to remind the driver/rider to slow down.Hazard warning
These signs are installed on the approaches to hazards such as bends and junctions. If triggered they may display a warning message and/or an image of the appropriate road sign (sharp bend, junction, etc).Sign Effectiveness
In a study conducted by TRLTransport Research Laboratory
TRL is a British transport consultancy and research organisation based at Wokingham Berkshire with approximately 500 staff. TRL is owned by the Transport Research Foundation , which is overseen by 80 sector members from the transport industry. TRL also own small UK regional offices situated in...
for the UK Department for Transport
Department for Transport
In the United Kingdom, the Department for Transport is the government department responsible for the English transport network and a limited number of transport matters in Scotland, Wales and Northern Ireland which are not devolved...
one of the conclusions was that vehicle activated signs appear to be very effective in reducing speeds; in particular, they are capable of reducing the number of drivers who exceed the speed limit and who contribute disproportionately to the accident risk, without the need for enforcement such as safety cameras.
External links
- http://www.vasuk.info
- http://www.driverfeedbacksigns.com Lightcast Radar Speed Signs example of VAS