Driver assistance system

A driver assistance system comprising:

• a plurality of monitoring units, each of the plurality of monitoring units mounted to a different one of a plurality of vehicles;
• and
• a central server, wherein
• each of the plurality of monitoring units is configured to determine a distraction level of a driver of the respective vehicle, and, if it is determined that the driver distraction level exceeds a predetermined threshold, transmit a distraction information message to the central server, wherein the distraction information message includes information about the distraction level and the position at which the distraction level occurred,
• the central server is configured to collect and evaluate the distraction information messages received from different ones of the plurality of monitoring units, and
• if a number of distraction information messages that are received for one and the same location during a defined period of time exceeds a defined number of messages, or if an increased number of distraction information messages is received for one and the same location regularly or at recurring points in time, the central server is configured to provide notifications to following vehicles that are determined to pass the location on their planned route.