THE GENERATION OF ROAD TRAFFIC NOISE UNDER INTERRUPTED FLOW CONDITIONS
Reliable techniques are available at present for the prediction, measurement, assessment and control of road traffic noise. However, these techniques are all based on the assumption of freely flowing traffic conditions. In many cases when the traffic flow is interrupted, for example in the vicinity of intersections, this assumption is invalid and the established techniques are generally unsuitable. While the topic of interrupted flow traffic noise has received some attention in recent years, it is still not adequately understood. The present thesis has therefore concentrated on the generation of traffic noise under interrupted flow conditions, with particular emphasis on a signalised intersection. A descriptive and predictive model, which is both theoretically and empirically based, has been developed and evaluated. The model provides roadside noise histories generated by traffic at a simple, signalised intersection and also by traffic on a straight road under free flow conditions. Model predictions have demonstrated the complexity of the noise generation process at an intersection and how the various components interact to produce the intersection noise histories. The noise generation characteristics of individual vehicles, platoons of vehicles and sequences of platoons in one and both roads of the intersection have been identified while the effects of other relevant factors, such as roadside observer location, have also been demonstrated. By evaluation against a variety of empirical data the model was found to be a good predictor of roadside noise histories generated under both interrupted and free flow conditions (a). The thesis was submitted for the degree of doctor of philosophy, department of mechanical engineering, university of newcastle.
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Corporate Authors:
UNIVERSITY OF NEWCASTLE
RANKIN DRIVE
Shortland, New South Wales, Australia -
Authors:
- SAMUELS, S E
- Publication Date: 1988-4
Language
- English
Media Info
- Pagination: 130 p.
Subject/Index Terms
- TRT Terms: Development; Evaluation and assessment; Intersections; Mathematical models; Noise; Sound level; Theses; Traffic; Traffic flow; Traffic signals; Urban areas
- Uncontrolled Terms: Service interruptions
- ITRD Terms: 9013: Development; 9015: Discontinuous; 9020: Evaluation (assessment); 455: Junction; 6473: Mathematical model; 6748: Sound; 6747: Sound level; 8597: Thesis; 755: Traffic; 671: Traffic flow; 565: Traffic signal; 313: Urban area
- Subject Areas: Environment; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00483433
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS, ATRI
- Created Date: May 31 1989 12:00AM