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Secure construction exits


By implementing intelligent solutions, we aim to enhance traffic safety for construction transports in urban areas – both to and from construction sites, in their vicinity, and within the construction site itself. Here, you can learn more about the innovative measures we are taking to create a safer and more efficient construction environment. Read on to discover how we are working to further develop solutions for secure construction exits, a designated risk zone for collisions between different groups of road users.

Background and problem description

Entrances and exits at construction sites that intersect with pedestrian and bicycle lanes pose a safety risk. Conflict situations between cyclists and construction vehicles easily arise at such locations, and unfortunately, several tragic accidents have been linked to these areas. Traffic management plans (TA plans) are currently implemented at construction site exits, outlining how signage and potential redirection of various road users should be handled to create the safest possible environment. In usual cases, standard signs are used, but sometimes the situation is so complex and assessed as too risky that one or more flaggers need to be employed. These types of passages are not only a safety risk for vulnerable road users but are also perceived as stressful for drivers. The job of a flagger is also a risky one and often faces angry comments and threats.

Previously, a smart warning system was tested in Gothenburg that alerted both cyclists and drivers of potential collision risks. By utilizing new types of systems, there is an opportunity to enhance safety and potentially, in some situations, avoid the need for flaggers.

The tests in Gothenburg were conducted in a real-world environment with test cyclists and drivers. The results indicated an increased sense of security compared to without the system, and sensor data showed that cyclists generally maintained a lower speed and stopped more often with the system than without. However, the tests revealed that there is room for improvement in the system. The system was considered somewhat too technically complex to be robust, and a preference was expressed for a local solution. Both truck drivers and cyclists expressed uncertainties about the target audience of the warning system and how the signals should be interpreted.

What will be tested?

In this project, a simplified version of the system tested previously will be evaluated. Instead of incorporating technical components from multiple organizations, Ramudden will provide the entire system solution. The hope is that this solution is more implementation-friendly than what has been tested before and that it can be used in various locations in the near future. However, the test needs to demonstrate how well the technical solution works and identify both the advantages and risks it entails. The test will be conducted at a real construction site exit.

Goal and purpose

  • Increased safety for cyclists and pedestrians when passing through construction site exits
  • Reduced stress for drivers with enhanced assistance
  • Greater understanding of requirements and how a digital warning system at construction site exits should be designed

Who is is participating in the test?

CLOSER, Heidelberg Materials, M Logistics, Ramudden, RISE and Stockholms stad.

With support from: Göteborgs stad, KTH and Trafikverket


Do you want to know more about the test?

Felicia Hökars

Felicia Hökars

Project leader