In an effort to minimize delays, the DRA is installing 10 SmartSensor HDs throughout the construction area to monitor traffic across all lanes.

October 01, 2012

LONDON, UNITED KINGDOM—The Danish Road Authority is embarking on a road-widening project to expand the M40 highway between Odense and Middelfart. To manage traffic flow through the work zone, the DRA is implementing a system using SmartSensor HD to monitor traffic volumes and vehicle speeds before and during the road construction.

The M40 is heavily traveled, carrying thousands of vehicles each day, and officials say congestion has been a moderate problem, particularly around more populated urban areas. For many years, the M40 has featured two lanes of travel in each direction; to alleviate congestion, the DRA is now adding a third lane to each direction, and it is anticipated that the construction work will cause additional delays.

In an effort to minimize delays, the DRA is installing 10 SmartSensor HDs throughout the construction area to monitor traffic across all lanes. The data provided by HD will be used to inform drivers of delays; to see if work zone speed limits are being followed; and to help the DRA determine the best times to engage in construction activities.

“HD has proven to be the best sensor for this project, both in performance and price,” says Kim Mortensen, the sales manager at Olsen Engineering A/S, a leading provider of innovative traffic and engineering solutions and the authorized Wavetronix distributor in Denmark. “HD is very easy to reconfigure, so when traffic is redirected or lanes are moved during construction, HD is the only sensor that will give the DRA the traffic information it needs, under any conditions during the construction period.”

HD was not the first sensor considered. In 2011, a similar project near the town of Skærup used another radar sensor that installed overhead and only detected vehicles in a single lane of traffic. Although this product was less expensive than HD, Mortensen says the DRA quickly realized it had drawbacks.

“In terms of price, the overhead radar’s installation and maintenance costs are devastating compared to HD,” Mortensen says. “In terms of performance, the overhead radar only detects one lane and does not respond to changes in lane configuration or lane closures. One HD can detect multiple lanes and is easy to reconfigure when necessary.”

Installation of the HD units began in August 2012. The road widening project is expected to last through the winter.

For more information on SmartSensor HD, click here.