The Trunk Road T2 and the Cha Kwo Ling (CKL) Tunnel form the middle section of Route 6. They connect the Central Kowloon Route (CKR) to the west and the main tunnel of the Tseung Kwan O –Lam Tin Tunnel (TKO-LTT) to the east.

The Route 6 forms part of Hong Kong’s strategic road network and provides an important road link from West Kowloon to Tseung Kwan O (TKO) New Town with intermediate interchanges at Kai Tak and Lam Tin. The Route 6 plays a strategic transport role by providing the essential highway infrastructure to support new development projects, including the West Kowloon Cultural District and the West Kowloon Station of the Hong Kong Section of the Guangzhou – Shenzhen – Hong Kong Express Rail Link; the Cruise Terminal, the Kai Tak Development (KTD) and the Kowloon East Central Business District; and the residential / industrial developments in TKO. Upon the completion of T2 Project, the entire Route 6 will be fully commissioned. During peak hours, it is anticipated that the journey time between Tseung Kwan O Town Centre and Yau Ma Tei will be substantially shortened from about 65 minutes now to 12 minutes. The public can have a more convenient express access between Kowloon East and West and amongst the developments along the route.

T2 主幹路及茶果嶺隧道屬六號幹線的中間路段 ，西接中九龍幹線，東連將軍澳-藍田隧道(將藍隧道)的主隧道。

六號幹線為本港策略性道路網絡的重要部分，為西九龍至將軍澳新市鎮之間提供一條主要幹道，並在啟德和藍田設有交通交匯處。六號幹線亦為必要的公路基建， 可以發揮策略性運輸功能，以支援新發展項目，包括西九文化區 、 廣深港高速鐵路香港段西九龍站、郵輪碼頭、啟德發展區和九龍東核心商業區，以及將軍澳的住宅／工業發展項目。當T2主幹路工程完成後，六號幹線將會全線通車。於繁忙時段，預計往來將軍澳市中心及油麻地的行車時間將由現時約 65 分鐘，大幅減至約 12 分鐘。將為市民提供更便捷的交通網絡往來九龍東、西部， 以及前往公路沿線的發展項目。

​合約編號：ED/2020/03
​更多相關資訊：https://www.trunkroadt2.hk/