Sensor-based detection of construction sites

Result of the project Digital Twin Munich as part of the funding guideline "Digitalization of Municipal Transport Systems" by the Federal Ministry of Transport and Digital Infrastructure. 

Position of the luminaires in the sensor manufacturer's management portal CM1

The sensor-supported localization of construction site lights enables the automated recording of the spatial and temporal extent of construction sites in the Digital Twin Munich. This allows construction site areas to be visualized in real time.

State-of-the-art roadworks lights can use integrated sensors to detect and automatically transmit their position on the road. The interconnected use of several of these systems makes it possible to track the position and extent of the roadworks area over time. In a pilot project, several of these lights were installed on safety beacons for testing purposes and the recorded data was transferred to the DT-M. The lights are approved safety beacon lights certified by BASt, which are equipped with GNSS receivers and send their position to an IoT platform of the light manufacturers via mobile data connections. This data is retrieved from the platform and integrated into the DT-M. By networking several lights, an area-wide construction site perimeter can be derived, which is compared with the construction site plans and used to monitor the construction sites. In addition to the position of the light, for which an accuracy of less than 0.5 m is aimed for, further information such as battery charge status, temperature etc. is transmitted. In addition, a warning message is sent if the position of the light changes.

Contribution to the digitalization of municipal transport systems

Automated construction site detection and monitoring provides information that helps to improve traffic flow in urban areas. The precise recording of the time of construction site set-up and dismantling provides road users with better information about disruptions on traffic routes.

Contribution to air pollution control / clean air in the City of Munich

Interactive 3D scenes and VR applications can be used to improve participation processes. This is particularly true for controversial traffic projects that are intended to reduce motorized traffic (e.g., improvement of cycling infrastructure). Resistance to projects, which contribute to air pollution reduction, could be significantly and quickly reduced.

Perspective of the action

A decision has been made not to continue with the pilot projects’ test installations for the time being. They will not be transferred to ongoing operations. The main reasons for this are the currently high costs for the geolocalized, sensor-based construction site lights compared to conventional lights and the technical challenges involved in integrating them into the DT-M across the board. However, considering the great benefits of the solution, the goal is to re-evaluate it later. The position reports from the lights could then also be integrated into the “Access-protected construction site platform” and into the “Construction sites service map”, in which all construction sites and temporary traffic disruptions are publicly visible in the Munich GeoPortal.

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Other Results

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Zu sehen ist ein Ausschnitt des 3D-Modells, in dem die semantischen Informationen des Lane-Models oder einer Verkehrssimulationen auf Basis des Lane-Models  in der Sonnenstraße ausgegeben werden können.

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Sendlinger Tor Platz: View of combined 3D city model.

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The construction sites map can be viewed on the Geoportal. With the help of icons, the map provides an overview of current and planned construction sites and no-stopping zones in Munich that will cause restrictions on driving, walking and parking over the next two to six weeks.

Interactive construction sites map in the Munich GeoPortal

See all construction sites and temporary traffic disruptions online at one glance.

lane-level model of the road network between central station, the Lenbachplatz and the Sophienstraße.

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The Munich Olympic Stadium in Minecraft.

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Concept sketch for sensor-based detection of construction sites in the Hanseatic City of Hamburg

Sensor-based detection of construction sites

The sensor-supported localization of construction site lights enables the automated recording of the spatial and temporal extent of construction sites in the Digital Twin Munich. This allows construction site areas to be visualized in real time.

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