Data e.g. traffic-relevant sensor data, recording method for road network, involves installing communication unit for communication with mobile network, and providing information about cell group, where unit stands in contact with group

摘要

The method involves providing center information about positions of a set of motor vehicles (14) e.g. floating car, and compiling traffic condition messages based on the information. A radio communication unit (16) e.g. mobile telephone, is installed in each individual vehicle for communication with a cellular mobile network e.g. Global system for Mobile Communication radio network. The central information about a mobile radio cell or mobile radio cell group (10a), with which the radio communication unit stands in contact is provided. An independent claim is also included for a device for recording data on the state of traffic in a road network.