Sydney's buses are provided through a contracting arrangement between Transport for NSW and the bus service operators. The contracts for each bus region are again coming up for renewal.
You can find a Sydney Morning Herald story about this here.
At this stage, WSPTU is not aware of any public consultation processes (apart from the customer satisfaction survey) that are being undertaken to support the process of renewing the bus contracts. The usual way for the public to make a comment about their bus services is through the 131500 service on the phone or the website.
You can find a full list of the contracted, privately-owned, bus companies from the 131500 website here and the State Transit Authority (STA) here.
You can download a copy of the Service Planning Guidelines here.
You can find the latest Metropolitan Buses Customer Satisfaction Survey for 2010 here.
You can download a useful resource about the provision of bus services in Western Sydney from Western Sydney Community Forum: "Connecting With Buses".
You can read the report from the NSW Auditor General about the measurement of bus contract performance here.