The book takes place in the near future somewhere in Sydney, Australia. It takes place after the recent invention of teleportation. It explores the social, political impact/consequences of teleportation. You can't illegally teleport yourself into another country because they will block you also because they have their own separate networks. Roads are abandoned and most forms of transportation have been discarded. That's all I can remember
It might be Sean Williams' The Resurrected Man, first published April 2005.
The author is Australian and at least some of the book is set in/around Sydney, specifically:
Unit 142, NorthWest Isobloc, Faux Sydney, UNITED REPUBLICS OF AUSTRALASIA
The book opens in the year 2069. Teleportation (D-Mat) is a relatively recent invention, which is still in the process of being integrated into society:
Even in such countries as Quebec, where d-mat travel was illegal for humans and livestock, access was not out of the question. Not one government on Earth had outlawed mass-freighting by d-mat, a testimony to the power of business over principles. Per tonne, d-mat was both quicker and more efficient than any other rapid transport currently available. It also promised clean and environmentally-friendly manufacturing techniques that were already in use off-Earth. A d-mat booth produced an object from data and basic raw materials, but the data didn’t have to come from another booth; it could come from its own internal memory, from a library, or a catalogue of items that could be integrated at will. Economic analysts were divided over whether d-mat mass-manufacturing would undermine or enrich the global economy, but one thing was certain: the laws permitting it would be passed one day, whether they were sound or not.
Fabian Schumacher, for example. He was not the creator of d-mat (the head of the initial research team and therefore nominal ‘inventor’, Nick Luhr, had been dead for a decade), but he was the man who had put the process into practise and continued to develop it in new and profitable ways.
Here's the book's description from the Amazon link above:
Private detective Jonah McEwen is wanted for murder. Someone has been killing women who resemble Marylin Blaylock, his former colleague and ex-lover. The latest grisly discovery is right on his doorstep. He is the obvious suspect.
The problem? He has been in a coma for three years - a coma he has no memory of entering. And there's worse to come.
Using matter transporter technology, or "d-mat," a serial killer know only as the Twinmaker has been brutally torturing and killing perfect facsimiles of his victims and leaving the originals alive. As legal arguments rage about whether this even constitutes murder, Jonah finds himself in the awkward position of defending his innocence when his own exact copy might actually be guilty.
Set in a time where the lines between human and machine are increasingly blurred, The Resurrected Man explores the future of terrorism, law enforcement, and globe-spanning conspiracies. A perfect blend of suspense and science fiction, the novel follows the complexities of Jonah and Marylin's relationship and their quest to find the killer before he strikes again, as well as unravelling the tensions between Jonah and his father - a man who has been dead for three years but who might yet hold the key to everything...
Nominated for the Aurealis Award and winner of the Ditmar Award, The Resurrected Man was hailed as a "tour de force" in Australia, the author's home country, and described as "compulsively readable" by Locus.