The West Kowloon Expressway runs 4.2 kilometres from the WHC to Lai Chi Kok. It serves developments on the West Kowloon Reclamation and helps relieve pressure on existing local roads.

• 西九龙快速公路连接西区海底隧道与荔枝角，全长4.；2公里，为西九龙填海区的发展提供服务，并有助纾缓区内现有道路的压力。