Hong Kong Regulations

ROAD TRAFFIC (TRAFFIC CONTROL) REGULATIONS - REGULATION 21

Portable light signals or traffic signs for obstructions and excavations

(1) In any case where, by reason of an obstruction or an excavation, the part
of a road, other than a road restricted to the passage of vehicles in one
direction only, available for the passage of vehicles is less than 5.5 m in
width-

   (a)  for a distance exceeding 30 m; or

   (b)  in such circumstances that the view of an oncoming vehicle, by the
        driver of a vehicle approaching the obstruction or excavation on the
        same side of the road as the obstruction or excavation, is obscured by
        a bend in the road, by the obstruction or excavation or by any other
        means, the person responsible shall provide portable light signals of
        the type prescribed in Schedule 3 and shall cause the signals to be
        operated at all times to direct traffic in such a manner as to enable
        vehicles to pass the obstruction or excavation in either direction
        without risk of accident and without unnecessary delay.

(2) Notwithstanding that a road, available for the passage of vehicles, other
than a road restricted to the passage of motor vehicles in one direction only,
is less than 5.5 m in width for a distance of 30 m or less, portable
light signals may be provided and operated where the person  responsible
considers that the light signals are necessary in order to provide for the
control of vehicles passing the obstruction or excavation.

(3) Notwithstanding subregulations (1) and (2), where a police officer of the
rank of sergeant or above considers that portable signals are necessary to
provide such control he may give notice either orally or in writing to the
person responsible requiring him to provide and operate at all times the
portable signals and the person responsible shall as soon as practicable
provide and thereafter operate at all times the portable signals.

(4) The person responsible shall forthwith notify the Director in writing of
the location of any light signals provided in accordance with subregulation
(1), (2) or (3).

(5) Manually operated temporary signs corresponding to Figure Nos. 103 and 104
in Schedule 1 may be used by or on behalf of the person  responsible to direct
vehicles past an obstruction or excavation referred to in this regulation in
either direction without risk of accident and without unnecessary delay other
than-

   (a)  in the circumstances described in subregulation (1), (2) or (3);

   (b)  in the hours of darkness.