Advance Traffic Control
Targeting excessive speed on approach to road hazards with advance warning VATCS where deemed necessary will improve safety for all road users.

Advance traffic control warning VATCS may be installed if deemed necessary as a supplement to static advance traffic control warning signage of a primary traffic control device (e.g. Traffic Circle) , and are targeted at specific drivers traveling above a pre-determined safe speed threshold.

Targeted drivers are not informed what speed they are traveling, rather they are advised of the approaching traffic control requirement. The warning can be supplemented with SLOW DOWN, STOP or YIELD AHEAD text and further enhanced by dynamic flashing pairs of horizontal beacons.

VATCS employ microwave Doppler radar to detect vehicle approach speeds and use diagrams sizes and colors that are in line with the MUTCD to ensure a consistent and clear road speed management strategy.

Importantly the advance traffic control series VATCS are not a replacement for static signage or to be used as a repeater they are a speed targeted supplementary advisory device.


Model Specific to Hazard - one size doesn’t fit all
A full range of advance traffic control series VATCS models are available in, 30 x 30” (750 x 750) and 36 x 36”(900 x 900) sizes ensuring the sign is appropriate for the road speed and traffic control device.

Independently proven - long term effective
7mp/11kph reduction on average curve approach speeds maintained after 3 years - TRL 548 report 1/3rd drop in accident rate after 3 years-TRL 548 report

Dynamic Corner Beacons - attract drivers attention but keep message clear
An important feature of VATCS is recognising that drivers have a limited time to read and react to a warning message. This is why VATCS incorporate dynamic flashing beacons in each corner of the display to attract driver’s attention whilst importantly maintaining the warning message steady for 3 seconds.

MUTCD compliant - consistent approach
VATCS are in full compliance with the MUTCD and where deployed support a clear, consistent speed management strategy of already recognized static regulatory and warning signs.

Federally Tested
VATCS is the only traffic calming display technology that has been federally field tested on a large scale to prove long term effectiveness, with driver respect of the technology being maintained over a 5 year period.

Targeted Message - Drivers wont tune out and respond well to reasoned message
When not active VATCS blend into the background, drivers are only provided a warning when their speed dictates it to be necessary. It is proven that the best overall driver behavior change is attained when drivers see the message is reasoned and well thought out.

Clear Message - Drivers informed of the curve hazard ahead and requirement to Slow Down
Importantly drivers aren’t told what speed they are traveling at, rather when required they are clearly informed of the hazard ahead and the requirement for them to slow down to safely manoeuver the hazard.

Related Pages
Jerry Britton

T: +1 613 352 3458
C: +1 613 583 9988
F: +1 613 352 6845