SMITHFIELD is home to a new $14 million bus depot.
State Transport Minister Gladys Berejiklian visited the Transit Systems site on Thursday to open it.
The depot will house about 80 buses and will be a base for 150 employees.
There will also be a new bus route, the 835, which will start on April 28.
It will operate between Prairiewood and St Marys, providing a new service to people within Wetherill Park, Eastern Creek and Erskine Park.
Ms Berejiklian said there would also be an increase in the number of daily route 817 trips from Fairfield to Cabramatta.
"The new Sydney metropolitan bus service contracts impose a very strong customer focus and detailed key performance indicators, and the results are starting to show," she said.
As part of the contract, Transit Systems and the state government bought 65 new buses, and an extra 19 low-floor airconditioned buses.
Transit Systems chief executive officer Clint Feuerherdt said the company had also taken over a premium bus service previously operated by the state.
"We transitioned the T80 service between Parramatta and Liverpool, much of which operates on an exclusive bus-only roadway and we are thrilled to announce that this service also has an on-time running performance in excess of 97 per cent," he said.
"We remain dedicated to improving convenience and comfort for commuters in our contract region and look forward to further enhancing the services we offer."