Recent traffic-control equipment and systems are reviewed. Equipment using 16 pairs of photodiode arrays as an image sensor can detect vehicle speed within an average error of - 1 km/h and a standard deviation of 2.3 km/h. A highways advisory radio system using 1.627 kHz will soon be put to practical use. Drivers demand the installation of graphite traffic-information boards. A mobile display unit using a speech synthesizer will be available in the near future. Microscopic and dynamic control of traffic signals is required.
Recent progress on traffic control equipment
Gegenwaertige Entwicklungen bei Verkehrslenkungsgeraeten
Titel japanisch
Journal of the Institute of Electronics and Communication Engineers of Japan ; 66 , 6 ; 591-596
1983
6 Seiten, 21 Quellen
Article (Journal)
Japanese
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