Rationale for change is to reflect the extent of CLK Rd as being from the farthest junction of slip roads from two other roads, namely Tuen Mun CLK Tunnel Rd and Shun Long Rd (both motorways). Shun Fai Rd along with the Sky City Rd roundabout (both non-motorway) are both intermediately accessed from CLK Rd (currently classified as Primary Highway), not any other motorway, and their connecting slip roads should be classified as Primary Link.