Rail Management Act 1996

owns or leases rail infrastructure or tram infrastructure, or a rail network, or has a right conferred by an Act or a contract to manage rail infrastructure or tram infrastructure, or a rail network; and

either—

operates, or appoints an agent or contractor to operate, the signalling, rolling stock control and communications facilities of the railway or tramway, as the case requires; or

carries out, or appoints an agent or contractor to carry out, on or around the railway or tramway (as the case requires), the construction, maintenance, repair or alteration of any of the rail infrastructure or tram infrastructure, or rail network.