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Untitled - HKU Libraries - The University of Hong Kong

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6.7 and Airport Tunnel6.7.1 <strong>The</strong> Hung Horn Bypass is a dual 3-Iane expressway proposed to continue thepresently committed bypass northeastward from Bailey Street to Sung Wong ToiRoad, where it would connect to the proposed Second Airport tunnel. <strong>The</strong> tunnel isproposed as a dual 2-lane facility underneath the airport runway with connectionsto Kai Fuk and Kai Cheung Roads at the east portal <strong>of</strong> the existing Airport tunnel.<strong>The</strong> Hung Horn Bypass would serve as an alternative to the existing East KowloonWay. <strong>The</strong> objective <strong>of</strong> these two projects is to relieve the existing major east-westroutes (East Kowloon Way, existing Airport tunnel, Prince Edward Road East andLung Cheung Road), which are all expected to operate at or slightly above capacityin 1996 if no further highways are constructed in the area.6.7.2 Traffic volume on the Hung Horn Bypass is projected at 79 000 to 92 000 pcus perday in 1996 at V/C ratio <strong>of</strong> 0.7 to 1.0. Daily traffic on the East Kowloon Way isexpected to decline by 23% and congestion on this road would be eliminated.6.7.3 <strong>The</strong> Second Airport tunnel is expected to carry almost 83 000 pcus per day in 1996and operate at 80% <strong>of</strong> its capacity. <strong>The</strong> existing Airport tunnel would be relieved <strong>of</strong>approximately 40% <strong>of</strong> its volume and would then operate within capacity. Inaddition, this facility will attract east-west traffic from parallel northerly streets,particularly Prince Edward Road East past the airport.6.7.4 By 2001, the Second Airport tunnel and East Kowloon Way are expected to operateat practical capacity, while spare capacity would be available on the existing Airporttunnel and Prince Edward Road East.6.7.5 <strong>The</strong> Hung Horn Bypass and Second Airport tunnel were treated separately for thepurposes <strong>of</strong> economic analysis but are in practice interdependent. Economicevaluation indicated that 80% <strong>of</strong> the benefits <strong>of</strong> the combined project were due tothe Second Airport tunnel, but since the economic cost <strong>of</strong> the tunnel (includingeconomic land cost) is much greater, both projects achieve a MEDIUM Single YearRate <strong>of</strong> Return. Both projects are economically worthwhile.6.7.6 <strong>The</strong> engineering feasibility <strong>of</strong> the Second Airport tunnel has not been determined.Preliminary consultations with the Civil Aviation Department have not ruled out theidea, but indicated that it requires careful investigation. If the airport were relocatedit would not be necessary to construct a tunnel, but the need for additional capacitythrough the Kai Tak area would still be required.6.7.7 Conclusions—This combined project is desirable by the mid 1990s to provideadditional east-west capacity. <strong>The</strong> general issue <strong>of</strong> east-west traffic movements inKowloon should be studied in detail. <strong>The</strong>re is no high capacity expressway plannedfor these movements at present, and the combined Hung Horn Bypass and SecondAirport tunnel would be a worthwhile option. It would also allow the parallel localroads to serve the purpose <strong>of</strong> local access and function within capacity.6.8 Central-Wanchai Bypass and Island Eastern Corridor Link6.8.1 <strong>The</strong> Central and Wanchai Bypass is a proposed 6-lane facility on the Central andWanchai Reclamation. It would proceed from the committed Rumsey Street flyoverin Central through the proposed Tamar tunnel to Wan Chas. From this point theproposed Island Eastern Corridor (IEC) Link proceeds as a dual expressway nearVictoria Park. Partial access with the local street network would be provided atHarbour Road, Fleming Road and Tonnochy Road. A direct access ramp would alsobe provided to allow southbound tunnel traffic to proceed westbound on theBypass. Taken together these projects would link the I EC and Route 7 to provide acontinuous expressway along the north shore <strong>of</strong> <strong>Hong</strong> <strong>Kong</strong> Island.110

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