From Dec 22, there will be three full-day bus lanes along Raffles Avenue, Raffles Boulevard and St Andrew's Road.

Full-day bus lanes operate from 7.30am to 8pm on all weekdays and Saturdays, except public holidays.

The three bus lanes are converted from the three existing normal bus lanes - which operate only during peak hours on weekdays.

With the three new stretches, there will now be a total of 23km of full day bus lanes and 155km of normal bus lanes.

Since the expansion of the bus lane scheme, the LTA has observed improvements of between 10 per cent and 12 percent to bus speeds in several areas where bus lanes have been implemented, such as along the stretch of North and South Bridge Roads and Grange Road.

This marks the completion of the expansion of the bus lane scheme which started in June this year.

The increase in the coverage of bus lanes helps to ensure that buses have a smooth path of travel, increasing the speed and reliability of bus services for commuters.

Motorists who drive in the bus lanes during the restricted hours are liable to a fine of $130.