
A database of all hillslopes, including how man-made ones were built, is essential to reduce the risk of landslides occurring, according to a geotechnical expert.
Over and above that, there must be a system to issue warnings of bad weather early to alert the public to potential risks, Raymond Cheung, who heads Hong Kong’s Geotechnical Engineering Office, told FMT.

These steps should also go hand-in-hand with public engagement to build trust and a sense of responsibility at the grassroots level, he added.
Citing Hong Kong’s strong track record in reducing the incidence of landslides, Cheung said there must be political commitment and a single agency clearly in charge of slope safety.
He said that for Penang, the first step the authorities must take is to build a detailed record of all slopes…