西區海底隧道
The first generation of the route number system in Hong Kong was envisaged in the 1968 "Hong Kong Long Term Road Study" by Freeman, Fox, Wilbur Smith &amp; Associates, in which trunk routes were given single-digit numbers, and distributors with double-digit ones. Also included in the road study was an unnumbered Western Harbour Crossing (WHC), which in the plan involved a bridge crossing the Victoria Harbour between Cherry Street in Mong Kok and Kennedy Town, by way of Stonecutters Island and Green Island.