Using 3D maps to investigate complex traffic accidents in Singapore

Singapore Land Authority's Dr Victor Khoo (left) and the Health Sciences Authority’s Dr Alaric Koh with a 3D laser scanner used at crash sites. — JASON QUAH/The Straits Times/ANN

SINGAPORE: In 2016, a Mercedes-Benz barrelled down the Ayer Rajah Expressway (AYE) against the flow of traffic, before crashing into a car and a scooter. One person was killed in the accident and four injured.

At the Mercedes driver’s trial in 2019, there was a question about whether the expressway’s slope had contributed to the car’s speeding as it moved against traffic flow, said Grace Wong, acting deputy laboratory director of Health Sciences Authority’s (HSA) Forensic Chemistry and Physics Laboratory.