Travellers have been told to expect delays at the Woodlands and Tuas checkpoints next week with Hari Raya Puasa and National Day falling back-to-back on Aug 8 and 9.

The Immigration & Checkpoints Authority (ICA) said in a statement on Thursday that traffic is expected to build up from Wednesday and will continue to be heavy through the weekend. It urged travellers to adjust their travel plans if possible to ease the expected surge of vehicles or to car pool or use public transport.

Singaporeans issued with the BioPass or registered with the National Registration Office are also encouraged to use the automated clearance lanes at the bus halls for quicker passage.

Those leaving Singapore by either land checkpoint may keep tabs on traffic conditions there in advance by checking the advisories installed along the major expressways.

Travellers may also call the traffic information hotline at 6863-0117, listen to TrafficWatch on the radio, or visit the Land Transport Authority's One Motoring website at http://www.onemotoring.com.sg

ICA added that travellers should carry their own passports before presenting themselves for immigration clearance at the checkpoints. Travellers presenting the wrong passports at immigration slow down the clearance process and cause inconvenience to other checkpoint users.

In addition, travellers should also make sure that they do not bring unlawful or prohibited goods into or out of Singapore, advised ICA.