However, State transport agencies must have regard to the framework under the Act when exercising statutory functions in relation to these private transport operators (including contract management). The interface decision makers and agencies affected by the Transport Integration Act include -   The Act requires that the interface agencies, including land use agencies, take account of the new Act and its policy directions when making decisions that are likely to have a significant impact on the transport system. Importantly, the Transport Integration Act also supports and assists the development, implementation and updating of a transport plan for the State. The centrepiece of the Transport Integration Act is the high level policy framework contained in Part 2. The key features of the policy framework are a vision for the transport system, six transport system objectives and seven decision making principles. The core of the policy framework is drawn from the principles of sustainability as applied to the transport sector. The framework recognises that transport is part of a broader policy goal of achieving sustainable development, both locally and globally. In general, the policy framework in the Act adopts the core principles of sustainable development or sustainability and translates that policy into a contemporary and enforceable legislative form in a transport context. The transport system objectives in the Transport Integration Act cover the following matters -  The objectives therefore draw heavily on the key sustainability concepts described above. Agencies must have regard to the objectives when they make decisions or exercise functions which are sourced back to the authority of the Act. The objectives essentially describe the outcomes sought to be achieved by the scheme. The need for clear and consistent objectives in policy and legislation settings for transport in Victoria was recognised by both the Transport Legislation Review and the Victorian Competition and Efficiency Commission (VCEC), the latter as part of its final report on managing transport congestion in Victoria. VCEC observed that -  VCEC commented on the failure of the previous central Victorian Government transport statute, the Transport Act 1983, to set out clear objectives for the transport system and transport agencies: "...the Act does not include a statement of its purpose or objectives to guide interpretation and decision making. Notwithstanding the absence of express objectives in the Transport Act, this and other Acts state the legislative objectives and functions for the key government agencies involved in transport policy development and service delivery." VCEC went on to recommend the development of clear and coordinated objectives to apply across the transport portfolio: "(H) having appropriate high level objectives that ‘cascade’ down into related objectives for each agency is a prerequisite for achieving the government’s desired outcomes for the transport sector. Such objectives can encourage agencies to work consistently to achieve these outcomes, and reduce the risk of inconsistent behaviour."