編有幹線號碼的主要道路路線，包括大部分主幹路和快速公路，方便駕駛人找到跨區路線。
A numbered main road route, including most trunk roads and expressways, that helps drivers find their way from one district to another.
編有幹線號碼的主要道路路線，包括大部分主幹路和快速公路，方便駕駛人找到跨區路線。
A numbered main road route, including most trunk roads and expressways, that helps drivers find their way from one district to another.