Hong Kong Regulations

ROAD TRAFFIC (TRAFFIC CONTROL) REGULATIONS - REGULATION 22

Dangerous excavations

(1) If any excavation on or near a road is of such a nature or is in such a
position that there is a danger that a pedestrian or vehicle may fall into it
or be otherwise endangered, the person responsible shall provide sufficient
fencing around the excavation as will be adequate and effective to prevent any
pedestrian or vehicle from falling into the excavation or being otherwise
endangered.

(2) The obligation to fence under subregulation (1) shall not apply where
fencing around the excavation would obstruct the passage of trams but in that
case instead of providing a fence the person responsible shall display
conspicuously not less than 1 m above the ground, close to the excavation,
such signs, approved by the Director, as are sufficient to give to any person
adequate warning of the danger.