LTA Evaluation of Longer Train Sets Using Selective Door Operation on North East Line

Written Reply to Parliamentary Question

Mr Low Wu Yang Andre asked the Acting Minister for Transport whether the Land Transport Authority has evaluated the feasibility of Selective Door Operation (SDO) to deploy longer train sets on the North East Line as a capacity boosting measure.

Reply by Acting Minister for Transport Jeffrey Siow:

1.          The Land Transport Authority (LTA) has studied the use of Selective Door Operation (SDO) to deploy longer trains along existing lines, and found it unfeasible for the North East Line. Longer dwell times would be needed at each station to allow for safe boarding and alighting, especially during peak hours, which will lengthen headways and journey times and reduce rather than increase system capacity. SDO will also require significant depot and track modification works to accommodate longer train sets.