D2 CAP. 215]
Eastern Harbour Crossing Road Tunnel Regulations
[1989 Ed.
[Subsidiary]
(iii) be manned at all times by persons fully trained in the use of equipment provided for the purposes mentioned in subparagraph (ii);
(c) ensure that direct telecommunication links are available at all times between the control centre and--
(i) a regional command and control centre of the Royal Hong Kong Police Force; and
(ii) the Communication Centre of the Government Fire Services Department;
(d) maintain in efficient working order the emergency communication system provided in the road tunnel for officers of the Government Fire Services Department to communicate with the Communication Centre of that department;
(e) provide service vehicles suitable for dealing with vehicular breakdowns, accidents and obstruction in the lanes;
(f) ensure that-
(i) an adequate number of the vehicles referred to in paragraph (e) is manned and maintained at all times in a state of readiness; and
(ii) while any such vehicle is present in a lane, a 2-way radio link is available between the vehicle and the control centre;
(g) ensure that the concentration of carbon monoxide gas in the road tunnel does not at any time exceed 125 parts per million;
(h) provide equipment for the continuous measurement and recording of the concentration of carbon monoxide gas in the road tunnel and for visual and audible alarm warnings to be given in the control centre if the concentration exceeds the level specified in paragraph (g);
(i) provide equipment for the continuous measurement and recording of petrol vapour in the sump at the lowest point of the road tunnel;
(j) ensure that the equipment referred to in paragraph (i) will give visual and audible alarm warnings if the concentration of petrol vapour exceeds 0.35%;
(k) provide fire extinguishing equipment in the sump at the lowest point of the road tunnel, which equipment shall come into operation automatically if the concentration of petrol vapour exceeds 0.8%;
(l) provide adequate and efficient illumination within the road tunnel area;
(m) ensure that the illumination referred to in paragraph (l) is varied having regard to the volume of traffic using the tunnel and the light conditions outside the road tunnel;