The 76-year-old woman fell after the assailant struck the back of her head.
The service will operate in 12-minute intervals during peak hours.
Singapore scored 83 out of 100, with 100 being 'very clean'.
This comes one week after an accident in River Valley took the life of four-year-old girl.
The 41-year-old kicked off his 4-day stint in Singapore on 29 Jan.
The victim's sister had even placed a reservation at the tze char stall below their house.
Contactless credit and debit cards are increasingly being used on public transport globally, although they face similar fare display issues.
Easties have another place to get their coffee fix.
Parents and students said the increases were acceptable.
Available for redemption at eight outlets islandwide.