A rapid bus system along Victoria Road and an extension of Sydney's eastern suburbs light rail line from Kensington to Malabar are, along with a tram down Parramatta Road, inner Sydney options recently analysed by Transport for NSW.

But the state government is not committing to any of them, and says the shape of Sydney's transport future will be determined by a masterplan released later this year.

The Herald on Thursday revealed that extensive planning had been undertaken in Transport for NSW for a light rail line down Parramatta Road. Those planning works, however, were cancelled this year.

The documents obtained by the Herald also show that a "rapid bus network" along Victoria Road has been under consideration by the state's transport authorities.