Meanwhile, a second Volvo self-driving bus will undergo a trial at a bus depot managed by the country's public transport operator. Chances are both will eventually join the fleet of driverless transit vehicles, including smaller mini-vans and full-sized buses, due to hit three regions in Singapore in 2022. The UK and Japan are also planning similar autonomous transport initiatives of their own.

The Volvo 7900 electric bus packs 36 seats and releases "zero emissions." NTU claims it consumes 80 per cent less energy than an equivalent-sized diesel bus. The university has been at the heart of Singapore's autonomous transit experiments, previously even building a "mini-town" for driverless bus trials. It joined forces with Volvo to develop the 7900 in early 2018.