Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Wingtat Hung"'
Autor:
Hong Zhang, Wingtat Hung, CS Chan, A. G.T. Sugathapala, Shuncheng Lee, Ranasinghege Sampath Aravinda Ranasinghe, Kin Fai Ho, Yu Huang, Steve Hung Lam Yim, Steven Sai Hang Ho
Publikováno v:
Atmospheric Pollution Research. 9:270-277
Indoor hazardous airborne carbonyls were quantified in five natural-ventilated roadside dwellings in Colombo, Sri Lanka. The total concentrations of all targeted carbonyls ranged from 13.6 to 18.6 μg/m3. Formaldehyde (C1) was the most abundant carbo
Publikováno v:
Construction and Building Materials. 129:1-10
This paper presents a study aiming at assessing the air pollutant and noise emissions of asphalt pavements. Four types of asphalt mixtures commonly used in Hong Kong were studied in the laboratory and field. Temperature was found to be the most criti
Publikováno v:
Transportation Research Part D: Transport and Environment. 83:102366
Traffic noise emission has long been a pervasive environmental and ecological problem, especially in the metropolitan cities with large-scale traffic network and high population density. Low noise road surface (LNRS) has been actively developed and a
Autor:
K.L. Mak, Wingtat Hung
Publikováno v:
Applied Acoustics. 76:24-27
Based on the close proximity (CPX) method specified in ISO/DIS 11819-2, we recorded and analyzed the instantaneous tyre/road sound pressure levels with 9 road sections that are constructed with the same pavement surfacing materials, that is, friction
Autor:
Wingtat Hung, Yu Huang, Kin Fai Ho, R. S.A. Ranasinghe, Yan Cheng, Shuncheng Lee, CS Chan, A. G.T. Sugathapala
Publikováno v:
Indoor and Built Environment. 24:597-606
Air pollution associated with emissions of fine particulates (PM10 and PM2.5) is becoming acute, especially in the urban environments of Sri Lanka during the last decade. Recent air quality data obtained from the monitoring stations located in Colomb
Publikováno v:
Applied Acoustics. 74:921-925
Tyre/road noise is becoming a more and more significant source of road traffic noise as engines become quieter. To reduce the traffic noise nuisance, low noise road surfaces and tyres have been adopted in noise sensitive areas. The durability and per
Autor:
Wingtat Hung, Shiying Lin
Publikováno v:
Proceedings of the Eighth International Conference on Maintenance and Rehabilitation of Pavements.
Publikováno v:
Journal of Transportation Engineering. 138:1377-1387
The Hong Kong Transport Department initiated a trial of the spiral-marking system on four roundabouts in different phases between January 2004 and August 2008. In this study, observational and questionnaire surveys were conducted to assess how the pr
Publikováno v:
Transportmetrica A: Transport Science. 10:140-159
Bus lanes have been widely adopted in major cities such as Hong Kong to improve the efficiency of bus services and increase bus modal share. However, their impacts on road safety have been overlooked. This study employs two observational before–aft
Publikováno v:
Applied Acoustics. 73:855-858
A systematic procedure for developing speed correction factor to adjust measured tyre/road noise is proposed in this paper. The draft ISO/CD 11819-2 on the Close-Proximity method to measure tyre/road noise stipulates that speed correction is needed t