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Sensors Track Traffic Congestion at Port of Aalborg
A Bluetooth-based solution from BLIP Systems employs sensors to capture transmissions from phones and other Bluetooth-enabled devices in trucks and cars, as well as software on a hosted server to analyze traffic conditions and prompt the display of alerts on traffic signage.
Jun 25, 2015—
The Port of Aalborg, in North Jutland, Denmark, is using sensor technology to improve traffic management, enabling it to know where vehicles are located in real time, how fast they are moving and, therefore, how traffic is flowing. The port first began working with BLIP Systems in 2011 to develop a solution that would help identify when drivers arrived at certain locations. The first phase of the project focused on documenting traffic flow on internal port roads by capturing Bluetooth transmissions from cell phones and other devices. It next plans to add more sensors to track traffic patterns on external roads that travel between different freight terminals in the area.
The Port of Aalborg has a five-century history of moving cargo into and out of the North Jutland area. The port was first established in 1476 with a few simple piers. Today, the 24-hour port imports and exports commodities such as cement, coal, feedstuffs, fertilizer, grain and oil cargoes, and includes a railroad, a warehouse and a quay. Two additional private ports include a cement factory, Aalborg Portland A/S, and a power station, Vattenfall A/S.
The port and the entire eastern part of the city are experiencing increased traffic in recent years, which means greater congestion, says Christian Bugislaus Carstens, BLIP Systems' marketing manager. Approximately 1,000 vehicles arrive at the port each day to deliver or pick up cargo. This heavy traffic load affects not only the port but also the community, in which about 10,000 vehicles travel daily. This will become increasingly important as a new university hospital is slated for completion in 2020, which will increase traffic in the area around the port by around 13,000 cars per day. Therefore, Schmidt says, providing drivers with the ability to choose alternative routes is important.
The port needed a system to better identify where vehicles move in real time, and to then disseminate that information to other drivers, thereby prompting them to select alternate routes and thus reduce congestion.
The port tried traffic counters, as well as employing students for ad-hoc traffic counts. In addition, port management looked into installing cameras. However, Schmidt says, none of these options provided what the port needed: a system for displaying alerts to drivers in the port area, or sufficient data analytics for future traffic planning.
Cameras could collect license plate numbers and other visual identifiers, in order to track which individuals are at which locations. While a camera system provides the greatest volume of data, it could be expensive since multiple cameras would need to be installed at each location, to capture all angles of a passing vehicle. What's more, snow, fog or a build-up of dirt on a camera lens could obscure images, and efforts would need to be made to encrypt and secure captured license plate numbers to protect privacy.
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