| 摘要 |
A system for monitoring traffic flow on streets having at least two traffic lanes free from oppositely directed traffic, particularly highways, wherein each traffic lane can be monitored, at least at one common location, by respective vehicle detectors, in which the magnitudes of time intervals between successive vehicles at the associated detector are measured, and mean values thereof are formed, together with mean values of another representative corresponding magnitude between successive intervals, with the values being stored in respective memories and supplied therefrom over linking means with a difference-forming device, together with similar values from other detectors, in predetermined timing with the output of the difference-forming device providing an evaluatable magnitude related to the traffic flow.
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