The Hai Van Pass located in coastal Central Vietnam, was the biggest traffic bottleneck on the National Highway No.1 linking the capital Hanoi with Ho Chi Minh. The road was often blocked due to landslides and slope failure during the rainy season. Construction of the tunnel, which is 6.3km long, started on 1st October 2000 and opened to traffic on 5 June 2005; the project scale is some US$200 million. A longitudinal ventilation system, invented and developed in Japan, was applied with SCADA (Supervisory Control And Data Acquisition system) in which all tunnel operation systems are integrated, monitored and controlled. An O&M agency was established by referring to the Japanese practice of highway tunnel operation. Several overall emergency response on-site drills were executed inside the tunnel just before the opening. A consultant had been taking proactive initiatives for work coordination among the contractors because all contractors were required to work simultaneously inside the tunnel in order to shorten the overall construction period. Work coordination meetings had been held on a weekly basis. Primavera P3 was used as a scheduling tool. A Guide to the Project Management Body of Knowledge (PMBOK Guide) was used for project management. (a) For the covering entry of this conference, please see ITRD abstract no. E214938.
Abstract