Written Reply by Minister for Transport Khaw Boon Wan to Parliamentary Question on Data on New Diesel-Hybrid and Electric Buses Deployed since 2018

Ms Anthea Ong asked the Minister for Transport

a.     whether data from the new diesel-hybrid and electric buses that have gradually been deployed since 2018 have been collated and compared, in terms of operational efficiency, reduction in tailpipe and carbon emissions, and rider feedback; and

b.     which indicators will support the proportion of each vehicle type in our cleaner bus fleet by 2040.

Reply by Minister for Transport Khaw Boon Wan:

1.     We are committed to having all public buses run on cleaner energy by 2040. Since March 2019, LTA has deployed 50 hybrid buses across the island. They have been well received by commuters for being quieter and providing smoother and more comfortable rides. The data collected shows that each hybrid bus can reduce tailpipe CO2 emissions by about 32 tonnes per year, or 1,620 tonnes per year for all 50 buses. This is equivalent to the tailpipe emissions of approximately 350 passenger cars. Fuel usage can also be reduced by up to 35% compared to traditional diesel buses.

2.     In addition, 60 fully electric buses will be progressively deployed this year. LTA will similarly assess these buses and calibrate our ramp-up of cleaner energy buses accordingly.