| Strategic Route and Exit Number System | |
|---|---|
 | |
 A map of all routes in Hong Kong | |
| System information | |
| Maintained by Transport Department | |
| Length | 231.3 km (143.7 mi) |
| Formed | 2004 |
| Highway names | |
| Route: | Route X |
| System links | |
The Hong Kong Strategic Route and Exit Number System (Chinese: 香港主要幹線及出口編號系統) is a system adopted by the Transport Department of the Hong Kong Government to organise the major roads in the territory into routes 1 to 10 for the convenience of drivers. When the system was implemented in 2004, the government promoted it with a major public campaign, including the slogan "Remember the Numbers; Make Driving Easier" (Chinese: 認路記號碼，唔使路路查).
The system comprises ten major series of roads in Hong Kong, numbered routes 1 to 10, which can be classified into three categories: the three north-south routes, the six east-west routes and the New Territories Circular Road. The route numbers are displayed as black on yellow "road-shields" on overhead road signs.
Parts of the road system are limited-access roads, and a significant portion of these roads are expressways. The system also utilises exit numbering with the exits of each route are numbered sequentially; some exit numbers are suffixed with a letter. Exit numbers are indicated by white-in-black rectangular boxes on overhead and roadside signs.