• Indicative Design
• Progress of Alignment Study

In the indicative alignment, the Yau Ma Tei section of CKR will connect to the existing Yau Ma Tei Interchange of the West Kowloon Highway. The alignment route will connect with existing flyover at Yau Ma Tei Interchange and descend to depressed road and tunnel, which run beneath the MTR tunnel tube across Nathan Road as illustrated cross section below. Majority of the Yau Ma Tei section of CKR will be in shallow cut-and-cover tunnel.

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The Consultant have reviewed over 40 previous alignment options, including tunnel and flyover options.

They covered most of Kowloon Peninsula, and included tunnel and flyover options as far north as Boundary Street and a flyover option across the harbour around the southern tip of Tsim Sha Tsui. The tunnel options are shown in Figure 1, and the flyover options are shown in Figure 2.

The review found that the tunnel options across the central part of the peninsula scored the highest marks overall on consideration of environmental impacts, land impacts, traffic implications, and geometric design, and recommended to adopt a tunnel options in the Central Kowloon corridor (in red).

Subsequently, taking into account environmental, social and land-use impacts, traffic connectivity and engineering feasibility, 14 alignment options at Yau Ma Tei area were developed out below for more in-depth consideration.

The general preferred features of an alignment option under traffic, engineering and impact assessments are that they should connect to West Kowloon Highway at the already constructed connecting points at the Yau Ma Tei Interchange, should be mainly in the form of a tunnel and affect private properties or public facilities as little as possible.

Options 4, 6, 11, 12, 13 and 14 are put forward as they totally avoid the community facilities namely the Yau Ma Tei Police Station, Yau Ma Tei Jockey Club PolyClinic and Specialist Extension. However, Options 4, 6, 12, 13 and 14 affect a number of private residential properties. Option 11 is a deep tunnel running under ground level facilities but it requires reclamation at the Yau Ma Tei Typhoon Shelter to construct connecting ramps. Option 12 cannot be directly connected to the Yau Ma Tei Interchange. Option 13 clashes with a large underground drain at Waterloo Road and is too close to the Yau Ma Tei MTR underground station.

Options 8, 9 and 10 adopt split tunnel format where the tunnel tube for one direction runs along a route some distance away from the other tube. This arrangement reduces the width of the site for Construction locally but two such sites will be required. Upon further examination, Tung Kun Street and Public Square Street are not wide enough to accommodate a tunnel tube without affecting Prosperous Garden. As such these options are either not feasible or carry high risks.

Options 1, 2, 3, 5 and 7 (re - designated Alignment Options A to E and presented in detail in the following five diagrams) are considered the more feasible options as they have manageable impacts in terms of community facilities affected, resumption of private properties, traffic disruption and proximity to sensitive receivers.

We continue to further refine these alignments to arrive at a preferred alignment with which we will consult the District Councils and Legislative Council. We are now collecting public views on the findings and the alignments. Please contact us and let us know your comments.

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