ACCC concerned over NSW road contract

The competition watchdog has raised concerns over the potential sale of Sydney's controversial WestConnex motorway to a consortium that already controls most NSW toll roads.

ACCC chairman Rod Sims on Thursday said the commission was concerned Transurban's acquisition of the multi-billion dollar toll road could stymie competition.

"We are concerned that the proposed acquisition may cement Transurban's advantages when competing for future toll roads," Mr Sims said in a statement.