Minnesota trialling Bluetooth ‘tags’ to warn drivers about highway workzones

In a project sponsored by the Roadway Safety Institute, University of Minnesota (UMN) researchers have developed a system that uses Bluetooth ‘tags’ to trigger in-vehicle audio warnings when approaching a highway workzone.

According to USDOT data, more than 20,000 highway personnel are injured or killed in workzones each year. For several years, UMN researchers have been teaming up on an interdisciplinary effort to develop a Bluetooth-based system that can be placed in workzones to deliver advance warning messages to drivers. In a new project that uses Bluetooth tags that can be easily attached to traffic signs and other objects in and around highway workzones, field tests have shown that the system is capable of providing dynamic, location-based in-vehicle messages for motorists approaching a construction area.