North Island line

North Island line
北港島綫
North Island line; 北港島綫
Overview
Owner	MTR Corporation
Locale	Districts: Central and Western, Wan Chai, Eastern
Termini	Hong Kong; North Point;
Stations	4
Service
System	MTR
Operator(s)	MTR Corporation
Technical
Track gauge	1,432 mm (4 ft 8+3⁄8 in)
Route map
	;
	Island line
	to Kennedy Town
	Tung Chung line
	to Tung Chung
	Airport Express
	to AsiaWorld–Expo
	South Island line
	to South Horizons
	Tsuen Wan line
	to Tsuen Wan
	East Rail line
	to Lo Wu or Lok Ma Chau
	Tseung Kwan O line
	to Po Lam or LOHAS Park
	Island line
	to Chai Wan

The North Island line is a proposal to provide rapid transit service for the area between the existing MTR Island line and the northern coast of Hong Kong Island in order to relieve the already congested Island line.

Originally, according to the document "Rail Projects Under Planning 2000" released by the Highways Department,[1] the current Tung Chung line would be extended from Hong Kong terminus eastward and two new stations, Tamar station and Exhibition Centre station are proposed on the extension. The new route would then connect and continue on the Island line from Fortress Hill station to Chai Wan terminus. The Tseung Kwan O line will have newly constructed tunnels connected from its North Point terminus to Fortress Hill station and continue on the remaining western half of the Island line.

In 2013, the Highways Department released a second option for the North Island line scheme, also known as the "interchange scheme" because it will only extend the Tung Chung line and the Tseung Kwan O line to meet at Tamar station where it will act as an interchange station for the two lines without dividing the Island line. The original scheme is known as the "swap scheme" for distinction.

2000 proposal

The extension of the Tung Chung line formed part of the third phase of land reclamation in Victoria Harbour on Hong Kong Island's northern coast. Due to the disagreement from public and political groups such as Society for Protection of the Harbour as well the insufficient traffic demand, the MTR Corporation never gave the proposal a commencement date.

Thee proposed Sha Tin to Central Link and the merger of MTRC and KCRC also influenced the fate of the North Island line. For these reasons, in 2003 Hong Kong Government postponed it indefinitely. However, the MTRC included the Sha Tin to Central Link and the North Island line details in the diagrams of the latest schemes of the West Island line and South Island line, released in 2008. Those diagrams have excluded the now cancelled Central South station and Racecourse Station in Happy Valley.[2]

2013 proposal

On 21 February 2013, the Highways Department launched stage two of public consultation of Our Future Railway, and proposed two schemes for the North Island line.[3] In addition to a "Swap" scheme which was similar to previous proposals, the consultation documents also included a second "Interchange" scheme.

"Swap" scheme

The existing Tung Chung line would be extended along the northern coast of Hong Kong Island, with Tamar, Exhibition Centre, Causeway Bay North and Fortress Hill stations along the route. The extension would then connect eastwards to the existing Island line at Fortress Hill station, and continue on the remaining Island line section to Chai Wan station.

Concurrently, the Tseung Kwan O line would extend from its current westbound terminus at North Point station to the existing Island line at Fortress Hill station, and continue on the remaining Island line to Kennedy Town station so both the Tung Chung and Tseung Kwan O line will make the Island line Rest in Peace.

This scheme would greatly increase the number of stations reached directly by the Tung Chung line and the Tseung Kwan O line on Hong Kong Island, but east-west directional traffic along the existing Island line would be interrupted and require an interchange. In addition, the maximum train frequency between Fortress Hill and Chai Wan stations, which would be served by the Tung Chung line, would have to reduce by 8 trains per hour because the service frequency of the Tung Chung line is restricted by the capacity of the Tsing Ma Bridge. The signalling system and rolling stock used on both lines are also different, so the “swap” scheme was not considered in the plan.

Original North Island line route scheme, namely the swap scheme,
including the proposed Sha Tin to Central Link, West Island line and South Island line

"Interchange" scheme

Both the existing Tung Chung line and Tseung Kwan O line would be extended along the northern coast of Hong Kong Island. Three stations, namely Tamar, Exhibition Centre and Causeway Bay North, would be constructed along the extensions, and either Tamar or Causeway Bay North station would be chosen as an interchange between the two lines.

This scheme would preserve the existing Island line in its current form and would not change the current commuting pattern between the Central, Western and Eastern Districts. However, as the Tung Chung and Tseung Kwan O lines would not be run on the Island line, passengers would still need to interchange as they currently do. Also, this arrangement would be less effective than the "Swap" scheme in relieving congestion, since although the number of stations and the area served has increased, the link with the current Island line would still be the same, unlike the "Swap" scheme.

North Island line interchange scheme

2014 plan

According to the "Railway Development Strategy 2014" document, the government opted for the interchange scheme because its construction cost and difficulties are lower and it does not interfere with the commuting patterns of current Island line users. Construction was expected to begin in 2021 and finish in 2026. The cost is estimated to be HK$20 billion in 2013 prices.[4] As of 2021, construction has not begun though technical design proposals are under consideration.[5]

References

North Hong Kong Island Line - Hong Kong Highways Department, Hong Kong Government
West Island Line & South Island Line (East) introduction - MTR Corporate Site
Our Future Railway Archived 11 December 2013 at the Wayback Machine
"Railway Development Strategy 2014" (PDF). Transport and Housing Bureau. September 2014. Archived from the original (PDF) on 29 June 2018. Retrieved 11 July 2018.
"Economy revival fears over major delays to Hong Kong rail projects". South China Morning Post. 13 June 2020. Archived from the original on 23 June 2020. Retrieved 8 July 2020.

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[1] North Hong Kong Island Line - Hong Kong Highways Department, Hong Kong Government

[2] West Island Line & South Island Line (East) introduction - MTR Corporate Site

[3] Our Future Railway Archived 11 December 2013 at the Wayback Machine

[rds2014-4] "Railway Development Strategy 2014" (PDF). Transport and Housing Bureau. September 2014. Archived from the original (PDF) on 29 June 2018. Retrieved 11 July 2018.

[5] "Economy revival fears over major delays to Hong Kong rail projects". South China Morning Post. 13 June 2020. Archived from the original on 23 June 2020. Retrieved 8 July 2020.

North Island line
Future projects of the MTR
Tung Chung line extension	(← Tung Chung line) Hong Kong Tamar
Tseung Kwan O line extension	Tamar Exhibition Centre Causeway Bay North North Point (Tseung Kwan O line →)
Stations that are proposed, under planning or under construction are shown in italics.