The city of Aarhus, Denmark has deployed 10 dynamic digital signs that are driven by motorist’s Bluetooth equipment. The signs provide instructions that include driving times and the fastest routes, which saves time and helps traffic flow smoothly.
In Aarhus, as in other large cities facing substantial challenges with traffic congestion, yet another means has been adopted to attempt to smooth the traffic flow and provide motorists with faster journeys. Ten dynamic signs, provided by ITS Teknik, featuring information such as driving times, alternative routes and weather conditions have been placed along the city's busiest roads. The content of the signs is updated on an ongoing basis as the actual characteristics of the traffic flow change. The motorists themselves, by contemplating the routes and points in time when they drive them, contribute to improving the level of service and helping the traffic move faster.
“The messages on the signs have been developed and adapted based on studies of commuters, and hence reflect information that the target group both demands and respects. The dynamic signs will be of benefit to the motorists, who will experience a higher level of service, and to the flow of traffic in general," says Claus Pedersen, Head of the Centre for City Use.
Motorists provide traffic data
The traffic data on the new information signs is based upon real-time inputs from 125 sensors that are placed on selected roads in Aarhus. These sensors detect motorists driving with a Bluetooth device, such as in hands-free systems and mobile phones. When a vehicle with an activated Bluetooth device passes the sensors, its anonymous ID, also called a MAC address, is recorded, encrypted and time-stamped. The data is then sent to a server where it is filtered and analysed.
By combining the data collected by all sensors, an accurate picture about each road user, such as their travel times, dwell times and movement patterns are provided. The information of the monitoring system are used to inform and warn city traffic engineers about queues and delays, identify problem areas, evaluate and calibrate traffic signals, provide information on the capacity of existing roads, and detect changes in traffic patterns.
“With BlipTrack we are able to measure the capacity and traffic flow in real-time in and around the area. This allows us to take proactive steps to initiate countermeasures if traffic build-up should occur. It also helps us to understand various traffic-related matters, enabling us to evaluate and validate existing traffic models and make informed decisions about where to prioritise expansions and optimisations to help the daily commute.”
Traffic Analyst at Trafik Stockholm
It gives us insights on how individual journeys can differ from each other, especially when traffic lights are involved. The ability to measure travel times over long stretches of road, with various queue lengths, and only looking at specific route choices, is another strength of the BlipTrack solution.”
CEO of Trafik Stockholm
“BlipTrack helps Thai citizens to travel home faster during two major traffic events: Songkran and New Year holidays. The system allowed not only road users to decide route choices via travel time info online but also the Thai Highway Police to manage traffic in real-time.”
Dr. Songrit Chayanan
Director of Samut Sakhon Highway District.
“With BlipTrack, we can discover errors and irregularities that we would not have a chance to see otherwise. In addition, it is extremely educational and easily accessible to study how the incidents of various kinds influence the road network.”
Project Manager at Aarhus Municipality
“The solution helps improve service levels for the municipality commuters. The real-time information allows drivers to make informed route choices that ultimately distribute traffic and increases the operational performance of the road network.”
Anders Kruse Christiansen
Project Manager at Aarhus Municipality
“Portsmouth has benefited from the accurate data from the BlipTrack installations with a much-improved understanding of journey times within the city of Portsmouth. We consider that the ease of extracting traffic data from BlipTrack is significant to see how time savings are achieved. Selecting the required route, date, time, etc. is very straightforward and simple to understand.”
Traffic Engineer at Portsmouth City Council
“BlipTrack is an optimal solution to perform Origin and Destination studies in major traffic areas. The solution is extremely cost efficient compared to traditional technologies and outstanding in measuring travel times. BlipTracks´s user-friendly analytical tools provide us with a complete overview of the traffic situation”
Project Manager at Dynniq
“BlipTrack is the most innovative solution we deploy. It provides our customers all they need to know about how the streets and roads they are responsible for are operating.
Managing Director at Bandwidth Telecommunications Limited
“The solution has helped us get a better understanding of the dynamic traffic system and provides quantifiable data to support the improvement measures to traffic flows. It allows us to provide a world-class service to our customers and community by efficiently managing traffic flows in and out of the port.” Read more.
General Manager of Strategy and Risk Management at Port of Dover
“BlipTrack provides the Aalborg City Business Association with an in-depth understanding on how people move within the city and measures the economic impact of events. The data allow us to analyze, optimize and improve large-scale events”. Read more
Director of Aalborg City Business Association
BlipTrack provide our clients with an unparalleled range of traffic information. Using the same data, we can provided live travel times direct to signs and phones, identify incidents and delays through to understanding the strategic route choices, origin / destination and changing travel patterns. Read more
Associate at BECA
“The BlipTrack solution is very cost effective, easy to install and commission, and the filter engine provides a robust method for removing the outlier data sets caused by vehicles stopping at shops, etc. BlipTrack has provided our clients with a level of confidence in better understanding journey times and hence managing the expectations of the travelling public.” Read more
Managing Director of Smart Video & Sensing Ltd
“BlipTrack offer accurate, robust traffic monitoring from the busiest highway to city streets, at very low cost and with no traffic disruption. We are seeing tremendous interest from provincial and city road agencies across Canada and in the US as they all seek to immediately better manage traffic throughout their road networks.”
CEO of G4Apps
“BlipTrack give us a unique opportunity to deliver new logistics solutions for the benefit of our customers”. Read more
Chief Technical Officer for the Port of Aalborg