The extraction of travel time data from Bluetooth is nowadays widely used in various countries. However, data from several studies shows a large variation in the equipment rate with Bluetooth devices in different areas of the world. In particular, most research points to significantly higher rates in European countries in comparison to the USA. Based on the evaluation of a dataset of almost two billion single Bluetooth detections, this work suggests one main reason for this difference being the significantly higher Bluetooth equipment rate amongst trucks on German freeways in relation to passenger cars. The findings show that trucks have an approximately five times higher chance to be equipped with a detectable Bluetooth device.     «

The extraction of travel time data from Bluetooth is nowadays widely used in various countries. However, data from several studies shows a large variation in the equipment rate with Bluetooth devices in different areas of the world. In particular, most research points to significantly higher rates in European countries in comparison to the USA. Based on the evaluation of a dataset of almost two billion single Bluetooth detections, this work suggests one main reason for this difference being t...     »