blog In the city of Aarhus, Denmark, road users are now reaping the fruits of Bluetooth monitoring, with shorter, more stable travel times, as well as benefiting from digital signs that help them make informed decisions.
If you drive around Aarhus with a built-in/switched on Bluetooth device, you will automatically be helping your fellow motorists to enjoy faster and less congested journeys. Aarhus Municipality, the second largest city in Denmark, has been using intelligent sensors that detect motorists’ mobile devices for several years. The data collected is used to gain an in-depth insight into and an understanding of traffic flows and the development of traffic jams, to optimise the road network and reduce congestion.
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The municipality can demonstrate significant travel time savings as a result of a host of new initiatives and optimisations, using data from the small, Bluetooth-detecting sensors. A striking case in point:
- After the expansion of two new turning lanes and optimisation of the traffic lights at the Skanderborgvej/Ringvej Syd intersection, a travel time saving of a my explanation massive 81 hours a day has been measured!. This travel time saving has been calculated solely on motorists travelling through the intersection during rush hour periods – morning and evening – and the total saving for the entire day is undoubtedly higher.
- At the heavily trafficked Viborgvej/Runevej/Bredskiftevej intersection, the sensors have measured an average time saving, heading out of town, as much as rencontres femmes punk 31% between 3 pm and 5 pm. Travel time has also become far more stable. Where, on some days, it would take motorists around 6 minutes, the travel time is now more constant at around 2 to 2½ minutes, regardless of the time of day. It gives commuters far greater predictability.
- With the introduction of a new left turn filter arrow from Søren Frichs Vej onto the ring road (Ringgaden), sensors have been able to detect a http://adetacher.com/misroe/jisdr/3686 reduction in travel time of more than 50%.
“Previously, drivers could easily sit in a queue for 10–12 minutes to turn left onto Ringgaden. With the new left turn filter arrow, it takes two to four minutes during rush hour,” explains Asbjørn Halskov-Sørensen, project manager at Center for Byens Anvendelse, CBA (the Centre for City Use).
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Last year, Aarhus Municipality also erected ten variable message signs on the stretches affected by light rail work, primarily Kystvejen, Randersvej and Grenåvej.
The signs, which provide information on travel times, fastest routes and other traffic information in real time, are also driven by data from the sensors. The information displayed is continually updated, in step with the actual behaviour of road users. So, by considering their route and the time they set off, the motorists themselves are helping to keep the traffic moving.
A recently conducted survey shows that commuters appreciate this continuous information, which most feel makes for a more pleasant journey. Other feedback tells us that drivers become less stressed when they know in advance what to expect, traffic-wise.
The survey also shows that commuters trust the information on the signs and choose their route based on the data presented to them on their journey to and from work. Two signs out towards the E45 (state highway) reap particular praise from motorists, who find the information about the journey home especially useful.
https://www.ronnipedersen.com/ypysti/8276 Precise figures are crucial
“Being able to give people concrete figures – both to our politicians and to our road users – provides the basis for a far more objective and balanced debate on the things we do on the roads,” says Asbjørn Halskov-Sørensen. “It is important for us to be able to document the facts when residents and the business community address themselves to us, or further up the system because they are experiencing long travel times/queues on various stretches. These experiences are often subjective, and travel times, therefore, tend to feel longer than they are.”
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“The technology works by the 200 or so sensors, which are set up in and around Aarhus, detecting when a hands-free phone, mobile phone or another open Bluetooth device drives past. This allows the BlipTrack solution to calculate travel times, congestion and traffic flow,” explains Christian Bugislaus Carstens, Marketing Manager for BlipTrack at Veovo. “The sensors do not pick up any sensitive personal information, only the device’s unique ID, which is not registered in any registers. The unique ID is also encrypted in the sensor, making it impossible to identify the Bluetooth device afterwards.”
“BlipTrack data is used for much more than just being able to measure the effect of signal optimisation and road work/construction projects, but this is an important part of its application and something from which we have benefited greatly. Ultimately, the data contributes to an improved economy and a better environment through reduced travel times and fuel consumption, and thus reductions in greenhouse gas emissions from vehicles,” says Asbjørn Halskov-Sørensen.
The future of traffic in Aarhus
“We are in the process of designing a travel time index to show how the travel time on the main approach roads and ring roads develops year by year, in the same way, that we already have an index for the development in traffic volume from year to year. We expect this to be a useful tool, enabling us to monitor and achieve the political goals set for travel times on our road network, as well as to take action at the spots where travel times have begun to increase beyond acceptable limits,” says Asbjørn Halskov-Sørensen. In addition, we are having BlipTrack software developed to monitor the travel times of the different segments and to raise the alarm if the travel time significantly exceeds the norm for that time and that day. We expect this to allow us to be far more on top of the situation on our roads and, for example, to be able to resolve any technical issues with traffic lights quickly.”
“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