Draft review of environmental factors for proposed reconstruction and widening of Cowpasture Road, Green Valley and Elizabeth drive, Bonnyrigg Heights

Cowpasture Road is a 12.8 kilometre long arterial road that generally runs in a north south direction between Bossley Park and Hoxton Park in the western region of metropolitan Sydney. Cowpasture Road has been classified as a state Road to reflect the important regional status it has gained through the continuing growth of the western region of Sydney. This section is abutted by the rapidly developing residential areas of Bonnyrigg Heights and Cecil Hills located to the east and west of Cowpasture Road respectively. The land development and associated traffic generation has emphasised a need to improve the performance of Cowpasture Road will continue to provide for north-south movements for this growing region of Sydney. The existing road serves local, commuter and business traffic including heavy vehicles with increasing traffic generation and delays. The proposal is to reconstruct the 2.2 kilometre section of Cowpasture Road from 200 metres south of north Liverpool Road, Green Valley to 300 metres north of Elizabeth Drive, Bonnyrigg Heights from an existing two lane undivided road to a four lane dual carriageway road in two stages.

科帕斯特路（Cowpasture Road）全长12.8公里，为南北走向的干线道路，连接悉尼都会区西部的博斯利公园（Bossley Park）与霍克斯顿帕克（Hoxton Park）。鉴于悉尼西部区域的持续发展，该道路已获得重要的区域地位，因此被列为州级道路。该路段两侧分别毗邻快速开发中的博尼里奇高地（Bonnyrigg Heights）与塞西尔希尔（Cecil Hills）住宅区，分别位于科帕斯特路的东侧与西侧。区域土地开发与伴随产生的交通流量增长，凸显出提升科帕斯特路通行效能的必要性——该道路将持续为这片快速发展的悉尼区域提供南北向通行服务。现有道路承担着本地通勤、商务及重型货运交通需求，伴随交通流量持续攀升，道路拥堵延误问题日益突出。本次改造方案拟分两阶段，对科帕斯特路位于格林谷（Green Valley）北利物浦路（North Liverpool Road）以南200米至博尼里奇高地伊丽莎白大道（Elizabeth Drive）以北300米的2.2公里路段进行改扩建，将现有双向两车道无分隔道路升级为双向四车道分隔式干线道路。