The impacts of neighbourhood traffic management

A major traffic-related problem faced by residents is speeding, which not only causes safety concerns, but also noise issues. Traffic calming is a much favoured traffic management tool employed by road controlling authorities to primarily reduce vehicle speed, hence improve community liveabili...

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Main Author: David Daniel, Basil
Format: Thesis
Language:English
Published: 2012
Subjects:
Online Access:http://eprints.uthm.edu.my/2536/1/24p%20BASIL%20DAVID%20DANIEL.pdf
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author David Daniel, Basil
author_facet David Daniel, Basil
author_sort David Daniel, Basil
collection UTHM
description A major traffic-related problem faced by residents is speeding, which not only causes safety concerns, but also noise issues. Traffic calming is a much favoured traffic management tool employed by road controlling authorities to primarily reduce vehicle speed, hence improve community liveability. This research aimed to investigate the impacts of traffic calming on speed, safety and traffic noise. The objectives included developing models for the prediction of speed and noise on traffic-calmed streets, and providing guidance for good design practices. Speeds of individual vehicles as they approached and crossed traffic calming devices were observed in order to identify the behaviour of individual drivers. Results indicated that the speed hump and the raised angled slow point produced the largest speed reductions and least variation in speeds, while mid-block narrowings had no significant speed changes. Inter-device speed was found to be mainly controlled by the separation between devices. 85th percentile speeds at distances from calming devices were 40 – 45 km/h for vertical deflections and 45 – 55 km/h for horizontal deflections. Speeds on approach to speed humps were found to be influenced by the distance available on the approaches, while operating speed at the speed humps were partly influenced by the hump width relative to the road width. There was evidence of safety benefits of traffic calming overall, despite mid�block crashes increasing post-calming. However, there was no association between the traffic calming and the crashes, which appeared to probably be due to other factors, human factors in particular. Noise levels produced by light vehicles across speed humps were in fact lower than on a flat section of road, given their respective mean speeds. At a reference speed of 25 km/h, noise levels produced over the 100 mm hump were 3.6 dBA higher than those produced by the 75 mm hump
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spelling uthm.eprints-25362021-11-01T02:32:50Z http://eprints.uthm.edu.my/2536/ The impacts of neighbourhood traffic management David Daniel, Basil TA Engineering (General). Civil engineering (General) TA1001-1280 Transportation engineering A major traffic-related problem faced by residents is speeding, which not only causes safety concerns, but also noise issues. Traffic calming is a much favoured traffic management tool employed by road controlling authorities to primarily reduce vehicle speed, hence improve community liveability. This research aimed to investigate the impacts of traffic calming on speed, safety and traffic noise. The objectives included developing models for the prediction of speed and noise on traffic-calmed streets, and providing guidance for good design practices. Speeds of individual vehicles as they approached and crossed traffic calming devices were observed in order to identify the behaviour of individual drivers. Results indicated that the speed hump and the raised angled slow point produced the largest speed reductions and least variation in speeds, while mid-block narrowings had no significant speed changes. Inter-device speed was found to be mainly controlled by the separation between devices. 85th percentile speeds at distances from calming devices were 40 – 45 km/h for vertical deflections and 45 – 55 km/h for horizontal deflections. Speeds on approach to speed humps were found to be influenced by the distance available on the approaches, while operating speed at the speed humps were partly influenced by the hump width relative to the road width. There was evidence of safety benefits of traffic calming overall, despite mid�block crashes increasing post-calming. However, there was no association between the traffic calming and the crashes, which appeared to probably be due to other factors, human factors in particular. Noise levels produced by light vehicles across speed humps were in fact lower than on a flat section of road, given their respective mean speeds. At a reference speed of 25 km/h, noise levels produced over the 100 mm hump were 3.6 dBA higher than those produced by the 75 mm hump 2012-09 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/2536/1/24p%20BASIL%20DAVID%20DANIEL.pdf David Daniel, Basil (2012) The impacts of neighbourhood traffic management. Doctoral thesis, University of Canterbury.
spellingShingle TA Engineering (General). Civil engineering (General)
TA1001-1280 Transportation engineering
David Daniel, Basil
The impacts of neighbourhood traffic management
title The impacts of neighbourhood traffic management
title_full The impacts of neighbourhood traffic management
title_fullStr The impacts of neighbourhood traffic management
title_full_unstemmed The impacts of neighbourhood traffic management
title_short The impacts of neighbourhood traffic management
title_sort impacts of neighbourhood traffic management
topic TA Engineering (General). Civil engineering (General)
TA1001-1280 Transportation engineering
url http://eprints.uthm.edu.my/2536/1/24p%20BASIL%20DAVID%20DANIEL.pdf
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