路线系统 meaning in Chinese

route system

If the construction standards of the highway are higher than that of urban roads as a result of a change of design , the route of the highway system shall be changed or shall bypass the urban areas
如因公路工程标准变更，致高于原市区道路工程设计标准时，应改选路线系统或绕越市区外通过。
Mtrcl has upgraded any major components and devices of its railway system over the past five years in respond to the failures , ageing and operational obstacles of the system , or arising from the need to achieve system unification for various lines ; if so , of the details of the upgrading work
（一）地铁公司在过去五年，有否因应铁路系统发生故障、老化和运行不畅顺情况，或基于统一各条路线系统的需要，而更新大型组件及设备；若有，请说明更新工作的详情；