SINGAPORE: Climate Challenges and Flood Concerns

As heavy downpours continue to soak Singapore's southern regions, concerns about flooding are increasing, particularly around the Sungei Pandan Kechil waterway, where water levels have crossed the three-quarter mark.

SMRT's Proactive Measures

Just 2km away, staff at the underground One-North MRT station are gearing up for possible flooding. With climate change leading to more intense rainfall, SMRT is proactively enhancing its flood defenses to protect both its infrastructure and the daily commute of thousands of passengers.

In recent months, flash floods have struck low-lying areas across the island, making flood preparedness a pressing priority. SMRT's flood response team stands ready, activated when the threat of flooding escalates. Upon detection of rising water levels, they swiftly install temporary metal barriers at the station's entrances to block water from infiltrating the premises.

Simulation Exercises and Staff Training

During a recent simulation exercise on December 12, SMRT staff showcased their proactive measures by demonstrating how these stackable metal barriers are installed. Each team member undergoes annual training on effectively constructing these flood barriers, complementing regular maintenance efforts to ensure readiness.

Collaboration with PUB and Safety Standards

On a government level, the Public Utilities Board (PUB) collaborates with critical infrastructure operators like SMRT to assess and fortify flood protection measures. Lee Cai Jie, chief engineer of drainage operations at PUB, emphasized the importance of rigorous checks, which ensure that flood protections align with the increased crest level requirements—set at 1.3m above ground since 2011 for underground MRT stations.

Design Features at Underground Stations

As a result, public transport facilities are designed with added safety precautions. Many underground MRT stations feature stairs leading to exits, helping redirect water away from travel paths. Specifically, stations with crest levels below the 1.3m threshold must have additional flood barriers installed.

Implementation of Flood Barriers

Currently, 16 stations on the Circle Line, including One-North, are equipped with these barriers, alongside 15 on the East-West Line and three on the Thomson-East Coast Line. These barriers come in various designs—some as swing doors or sliding ones—while the stackable barriers used at One-North require a team effort for installation, proving to be the most labor-intensive option.

Innovations and Continuous Monitoring

Most recently, innovations have led to improved flood barrier designs on the Thomson-East Coast Line, with some new installations manageable by just a single operator. Moreover, MRT tunnel systems feature sump pits designed to collect excess water; when levels rise, sump pumps automatically drain the water away to prevent flooding within the tunnels.

Flood Response Protocols

Monitoring is a continuous process; when water levels rise to over 90%, the flood response team is dispatched to the One-North station. Staff conduct checks on station exits every half hour while the operations control center monitors conditions through closed-circuit television. Once surrounding canals breach capacity, the team spring into action, positioning barriers at critical entrances only when roads and footpaths become submerged.

Conclusion: Commitment to Flood Resilience

The dedication and preparedness of SMRT staff illustrate a significant commitment to flood resilience amid changing weather patterns. This ensures that commuters can continue to navigate the city's transport network safely, regardless of the unpredictable nature of Singapore's climate.

Call to Action

Stay informed and prepared—because in the face of climate change, every drop counts!