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Monitoring the environmental impact of individual vehicles in a traffic flow

Monitoring the environmental impact of individual vehicles in a traffic flow

Category
Part of a book/report
Abstract
In the project MOVE, SINTEF has tested different methods to measure the environmental impact of individual vehicles in a traffic flow. One of the methods to measure the noise levels is to use a microphone array. An array with up to 8 microphones has been tested, together with a special algorithm for processing of the microphone signals. A simulation, based on measured pass-by sounds of vehicles, showed that it was feasible to acoustically separate two cars with a separation time of less than 1 second, at a speed around 70 km/h, using only 4 microphones. A commercial available traffic registration system has been used, to measure the speed of the vehicles, lane position and a classification up to 8 different vehicle categories. During the test program, the pass-by noise level of more than 9000 vehicles has been measured. The tests showed that the monitor system could identify some vehicles with very high noise levels; more than 100 dB at speeds around 60-80 km/h. In addition to monitoring of the noise levels, a new laser gas detection device has been tested, which showed that it was feasible to measure abnormal CO levels of random passing vehicles. © 2016, German Acoustical Society (DEGA).
Language
English
Author(s)
Affiliation
  • SINTEF Digital / Connectivity Technologies and Platforms
Year
2016
Published in
Proceedings of the INTER-NOISE
ISSN
0105-175X
Place
Berlin, Germany
Publisher
German Acoustical Society
Book
Proceedings of the INTER-NOISE 2016. 45th International Congress and Exposition on Noise Control Engineering, August 21 - 24, 2016, Hamburg, Germany
Booklet
2016
ISBN
978-3-939296-11-9
Page(s)
5038 - 5047