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and $44.2 million on improvements and maintenance. The total length of roads maintained by the government now stands at 1073.61 kilometres, of which 341.32 kilo- metres are on Hong Kong Island, 316.54 kilometres in Kowloon and 415.75 kilometres in the New Territories.
On Hong Kong Island, major road projects at Queensway, Pok Fu Lam Village and A Kung Ngam were completed and traffic congestion in these areas was con- sequently relieved. The widening of Shek Pai Wan Road to improve road communica- tion between Central, Pok Fu Lam and Aberdeen continued satisfactorily. Detailed design for extending the Canal Road flyover to provide the connection between the proposed Aberdeen tunnel and the cross-harbour tunnel was completed. Reports on the feasibility of constructing a bridge across Lei Yue Mun and a high capacity coastal route from Causeway Bay to Shau Kei Wan were submitted by consulting engineers.
In Kowloon, several projects were completed to cater for major traffic move- ments in the area and for traffic diversions to enable construction of the mass transit railway. The projects included the Kowloon Park Drive joining Salisbury Road and Canton Road; the 700-metre-long Prince Edward Road-Lai Chi Kok Road flyover; and two major interchanges at Waterloo Road/Argyle Street junction and Waterloo Road/Prince Edward Road/Boundary Street junction. There was good progress on the construction of a primary distributor route along the Kowloon foothills linking Kwun Tong and Kwai Chung, with interchanges at Choi Hung, Fung Mo, Tai Wo Ping and Pipers' Hill being brought into commission. An underpass at Nam Cheong interchange and an extension of Ching Cheung Road to Kwai Chung Road were well advanced. Works were started on the extension of Wai Yip Street to provide a second route parallel to the congested Kwun Tong Road and on the construction of a 1000- metre-long extension of Salisbury Road. Two major traffic routes on the east and west sides of Kowloon peninsula were under active planning and design.
In the New Territories, there was satisfactory progress on the construction of Stage I of the 15.3 kilometre dual three-lane carriageway between Tsuen Wan and Tuen Mun, to serve development at Tuen Mun new town. A new interchange provid- ing direct access to Princess Margaret Hospital over the busy Kwai Chung Road was opened to traffic during the year. The construction of a 1830-metre-long footpath from Sok Kwu Wan to Mau Tat Village on Lamma Island and the reconstruction of Hang Hau Road were also completed. Works were well under way on the construction of a railway bridge and the realignment of Tai Po Road under the Kowloon-Canton Railway at milestone 174, and satisfactory progress was maintained on roads and drainage works for seven housing estates in the new towns at Sha Tin and Tsuen Wan. Detailed designs were begun for the second carriageway from the Sha Tin end of Lion Rock tunnel to Siu Lek Yuen Road and for the duplication of the road bridge across Shing Mun River.
Traffic management techniques included the introduction of 'zig-zag' markings on all existing and new zebra crossings for the promotion of pedestrian safety. Pedestrian precincts were established in Hanoi Road and Cornwall Avenue in Tsim Sha Tsui for a trial period of six months. All cable networks and the installation of on-street equipment for a computerised area traffic control system for western