The semistationary trailer is based on a model that Jenoptik introduced to the Swiss market several years ago. The system was further developed for Germany and equipped with the TraffiStar S350 laser scanner.
Housed in a robust container, the measurement technology can be used independently of external power supply thanks to accumulator batteries for about a week at construction sites, accident black spots or traffic-calmed locations, for example. Both directions of travel are monitored simultaneously, day and night. Thanks to the front and rear cameras, the semistationary trailer can also detect speeding offences by motorcycles. The armor-plated container has a GPS transmitter to locate the trailer and sensors to report vandalism attempts.
Already in 2016, the City of Cologne had tested semistationary trailers over a period of six months. Now they are to be used in various hazardous areas such as kindergartens, schools, hospitals and retirement homes. A total of around 1,300 possible measuring points were identified in Cologne. As is already common in many other German cities, the ten trailers have already received names from the local authorities, some of them with a local reference, among them Hänneschen, Kättche and Pitter.