SINGAPORE - The night before his bus crashed into a cyclist, Chinese national Yu Tian had drunk 1 ½ big cans of beer during dinner with some friends in Pasir Ris.

The 34-year-old work permit holder left his friends around midnight and drove the bus to a carpark in the Beach Road area where he slept till 6.40am on Oct 2, 2016.

He was on his way back to his dormitory when the collision occurred.

While driving along Jalan Ahmad Ibrahim at 7.38am, Yu did not notice Mr Jongmong Winad riding his bicycle close to the left kerb of the single-lane road.

He did not slow down or make any attempt to avoid a collision as the bus approached the 46-year-old Thai construction worker, who was wearing a visible bright yellow long-sleeve shirt.

The front left portion of the 20-seater bus hit the back of Mr Jongmong's bicycle, causing him and the bicycle to be flung onto the grass verge.

Deputy Public Prosecutor Claire Poh said that Yu was speeding at 75kmh, 25kmh above the speed limit of Jalan Ahmad Ibrahim .

Yu also admitted that he was feeling tired as he had not slept well and lost concentration just before the collision.

Yu, who was smelling of alcohol, failed the breathalyser test at the scene. He was taken to Traffic Police Department where a breath evidential analyser test showed that his breath contained 36 microgrammes of alcohol per 100millilitres of breath. The legal limit is 35 microgrammes.

The deceased was taken to hospital where he died from multiple injuries at 8.55am the same day.

On Monday, Yu was jailed for six months and banned from driving for eight years after admitting to causing death by doing a negligent act.

A second charge of drink driving was taken into consideration.

He could have been jailed for up to two years and/or fined for causing death by negligence.