extinguishers 82 hose reels 78 hydrants 18,268 fluorescent tubes 3,277 tunnel wall panels 44 CCTVs inside tunnel tubes 10 CCTVs outside tunnel tubes 16 ventilation fans References External links Tate's Cairn Tunnel Company Transport Department, toll rates Diamond Hill New Kowloon Toll tunnels in Hong Kong Siu Lek Yuen China Resources NWS Holdings Tunnels completed in 1991 Route 2 (Hong Kong) Road tunnels in Hong Kong 1991 establishments in Hong Kong