With the Labour Day holiday on May 1, traffic flow through the land checkpoints at Woodlands and Tuas is expected to be heavy, said the Immigration and Checkpoints Authority (ICA) in a statement on Thursday.

Travellers should expect delays from April 30 till May 5. ICA advises travellers to adjust their travel plans if possible or help to ease congestion by car-pooling or using of public transport.

Singaporeans issued with the BioPass or registered with the National Registration Office are also encouraged to use the enhanced Immigration Automated Clearance System (eIACS) lanes at the bus halls, which allows travellers to clear immigration within 12 seconds at no additional cost.

Travellers are reminded to ensure that they are carrying their own passports before presenting themselves for immigration clearance at the checkpoints. They can also check the traffic situation at the checkpoints by looking at the monitoring system signboards installed along the Ayer-Rajah Expressway and Bukit Timah Expressway. They may also call the traffic information hotline at 6863-0117 or visit www.onemotoring.com.sg