Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction本欧洲标准描述了一种用于确定安装在交通噪声降低装置顶部的附加设备的声衍射的固有特性的测试方法.测试方法规定了噪声降低装置的顶部边缘附近的几...
{Proceedings of the 9th European Conference on Noise Control}, isbn = {9788001050132}, language = {eng}, location = {Prague, Czech Republic}, pages = {949--954}, publisher = {European Acoustics Assocation (EAA)}, title = {The potential of vegetation for reducing road traffic noise at ...
EN 14388(2005): Road traffic noise reducing devices - Specifications. CEN European Committee for Stan- dardization, rue de Stassart, 36 B-1050 Brussels.British Standards Institution. (2005b). "Road traffic noise reducing devices: Specifications." BS EN 14388, British Standards Institution, ...
BSI Standards PublicationRoad traffic noise reducing devices – Non-acoustic performancePart 2: General safety and environmental requirementsBS EN 1794‑2:2020
The history of development for novel designed noise barriers in Japan is described. These are called edge modified noise barriers which have noise reducing devices at the top position of the barriers. This kind of barriers has been developed since 1980's. The application to road traffic noise an...
网络释义 1. 降低噪声的 滚动轴承技术词汇 ... ... Noise measuring set 噪声测定装置Noise-reducing降低噪声的Noise test 噪声试验 ... blog.sina.com.cn|基于2个网页 2. 减噪 主动减噪,active acoustic... ... ) voluntary speed reduction 主动减速 )noise-reducing减噪... ...
Restricting a sufficient number of turns can make intersections free from crossing lanes of traffic (“zero traffic conflict,”“ZTC”), though there may still be merging lanes of traffic. It’s possible to make all intersections in a road network ZTC. However, keeping all destinations ...
Approaches-to-Reducing-Traffic-Noise-in-Highway网页 图片 视频 学术 词典 航班 Approaches-to-Reducing-Traffic-Noise-in-Highway 例句 释义: 全部 更多例句筛选 1. Approaches to Reducing Traffic Noise in Highway 高速公路交通噪声的降噪措施 ilib.cn...
The authors tested their device by placing it in the window of a replica room and playingroad traffic, train and aircraft noises from a loudspeaker two metres away. 18 microphones inside the room detected changes in sound, before and after the noise control device was activated. The authors ob...
Speed limits may also be set in an attempt lo reduce the environmental impact of road traffic, such as vehicle noise, vibration, and carbon emissions, as welt as to adhere to local community demands。 Speed limits are often in response (o environmental concerns。 They can be used to improve...