Public buses form a significant part of public transport in Singapore, with over 3.6 million rides taken per day on average as of December 2021. There are 352 scheduled bus services, operated by SBS Transit, SMRT Buses, Tower Transit Singapore and Go-Ahead Singapore. The newest bus operator, Go-Ahead Singapore started operation on 4 September 2016. There are also around 5,800 buses currently in operation as of 2020.