si1 zi2 saan1 seoi6 dou6 gung1 lou6獅子山隧道公路狮子山隧道公路

How it's used

Proper nouns for roads in Hong Kong are often referred to by their full names in formal contexts, but locals frequently shorten them if the context is clear. When giving directions, people often focus on the tunnel itself rather than the road name, as the tunnel serves as the primary landmark for navigation between Kowloon and the New Territories.