Importance

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Abstract

A method for obtaining data on the traffic situation in a road network, wherein a plurality of vehicles involved in road traffic ('floating cars') and equipped with sensory analysis equipment for collecting traffic-relevant sensor data, which include at least one variable representing the current speed v(t) of a given vehicle, wirelessly transmit to a center at chronological intervals individual reports concerning the current traffic situation in the vicinity of the given vehicle determined on the basis of collected sensor data by a data processing device arranged in the vehicle. The individual reports, in addition to containing a classifying interpretation of the traffic situation carried out by the data processing device based on the collected speed variables, which interpretation encompasses at least the class of 'traffic-related hold-up' (traffic jam), also contain, as part of the report, a confidence factor F, which represents a measure for the waviness of the chronological profile of the speed variables, especially the vehicle speed v(t), for the period of time to which the given individual report relates.

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First Claim