Complex sentence: The transit network consists of 32 surface and subterranean railway lines (see section on rail transport) run by numerous public and private operators; monorails, trams, fixed-guideway lines and buses support this primary rail network.
Split into simpler sentences: The transit network consists of 32 surface and subterranean railway lines (see section on rail transport) operated by several and private operators. Monorails, trams, fixed-guideway lines and buses support this primary rail network.