Under the Tung Chung Line Extension project, a new Tung Chung East Station# will be constructed between the existing Sunny Bay and Tung Chung stations. To connect to the future new station, the Tung Chung Line mainline tracks need to be diverted to the north with the construction of an approximately 1.2-kilometre new railway section.

The major track diversion works mainly include:
• Construction of a new railway section
• Installation of overhead lines
• Modification of the existing signaling system
• Phased installation of four turnouts on both the Tung Chung- and Hong Kong-bound tracks

The turnout installation is particularly critical in the track diversion works. Turnouts are important track facilities that allow trains to enter the new railway section. This works needs to be carried out on the operating Tung Chung Line tracks, and includes the following procedures that must be carried out uninterrupted:
• Installation of track components
• Track position adjustment and connection
• Installation of a point machine
• Testing of the signaling system and the various tests before train service resumption

The first and second critical turnout installation was successfully completed in the late night of 26 October 2024, and 19 April 2025, respectively. According to the current plan, the remaining turnouts will be installed between 2026 and 2027. The project team will carefully plan the works, and announce the details in due course.

The first critical turnout installation was successfully completed in the late night of 26 October 2024, while the second installation is scheduled for 19 April 2025. According to the current plan, the remaining turnouts will be installed between 2026 and 2027. The project team will carefully plan the works, and announce the details in due course.

Watch the following video for an overview of the major railway track diversion works!

Switch It On! – The First Critical Turnout Installation

The Second Critical Turnout Installation- At a Glance

# The station names are working titles only. All drawings and visuals are provided for concept illustration only, and the content is subject to change.