Risk Assessments of Bus Arrival Timing System Prior to January 2026 System Glitch

Written Reply to Parliamentary Question

Ms He Ting Ru asked the Acting Minister for Transport prior to the detection of inaccuracies of bus arrival timings in January 2026

a.       whether there were any risk assessments carried out on the system;

b.       whether there were any vulnerabilities identified and if so, what were they; and

c.       how often were independent system audits and stress tests on the system conducted.

Reply by Acting Minister for Transport Jeffrey Siow:

1.           The Expected Time of Arrival (ETA) system is required to undergo a risk assessment every two years. The last assessment on the ETA system was conducted by the Land Transport Authority in July 2024, and identified minor issues which were addressed prior to the recent disruption. Unfortunately, it did not pick up the issues that led to the disruption. We will review how we can improve the risk assessment for future iterations.