WSDOT - Noise Walls - Proposed

Noise walls are free-standing barriers built parallel to a highway. They are usually found near public areas, such as parks, and residential areas. The walls range in height from 6 to 20 feet, but are normally 12 to 15 feet tall. They can reduce noise levels by 10 to 15 decibels, cutting the loudness of traffic noise in half. Barriers can be formed from earth berms, or constructed of wood, stucco, concrete, masonry, metal, or other materials. This feature class contains Type II noise walls, which are walls proposed for retrofit. This data has been synchronized with the LRS dated December 31, 2020. Data appended April 2022. For questions about this dataset, please contact Lindsay Taylor: [e-mail]声屏障（noise walls）为平行于高速公路建造的独立式隔声屏障。此类屏障通常设置于公园、居民区等公共区域周边。该类屏障高度介于6至20英尺之间，常规高度多为12至15英尺。其可降低10至15分贝的噪声级，可使交通噪声的响度减半。屏障可由土堤构筑，亦可采用木材、灰泥、混凝土、砌体、金属或其他材料制成。本要素类包含II型声屏障，即拟用于加装改造的声屏障。本数据集已与2020年12月31日版本的路线参考系统（Linear Reference System, LRS）完成同步。数据于2022年4月追加更新。若需咨询该数据集相关问题，请联系林赛·泰勒（Lindsay Taylor）：[e-mail]