31 The TPD Act, s 6(1), provides that a town planning scheme may be made with respect to any land with the general object of improving and developing such land to the best possible advantage, and of securing suitable provision for traffic, transportation, and other matters and of making suitable provision for the use of land for building or other purposes and for all or any of the purposes, provisions, powers or works contained in the first schedule. The first schedule refers to "Matters which may be dealt with by general provisions" and includes roads, probable routes for railways authorised by statute and works ancillary to or consequent on the scheme. Clause 5 of the PRS provides that the purposes of the scheme, amongst other things, are to provide for the reservation and protection of land for regional transport, conservation, recreation and public uses. Clause 6 provides that the aims of the scheme, amongst other things, are to provide for regional transportation, community services and infrastructure in a way that is efficient, equitable and timely. Part 3 of the PRS provides for lands to be reserved under the scheme for the public purposes shown on the scheme map. Clause 10 provides that land is reserved under the scheme for, amongst others, the public purposes of primary regional roads - to provide a regional road network to accommodate current and future transport needs on roads declared under the Main Roads Act 1930 (WA); and railways - to provide for the passage of trains, the marshalling, maintenance and storage of rolling stock, and the conveying of the public and freight by rail.