69 growth buses to be bought for Sydney.

Nine news report (video) that it will be in the state budget that there is to be 269 buses bought in the upcoming budget.  69 are to be "growth buses".  It leaves questions about what type of buses are to be bought unanswered.  Is it to be like for like replacement or bigger/smaller buses, and what of the replacement buses - what type?

There is a need for a number of double decker buses, not just for the M2 services to the north west, but for the Northern Beaches services such as the L90.  I do not know why they wouldn't buy double deckers, perhaps it is an unknown quantity?

Update 13/6/2012: Budget papers seem to contradict each other.  One says that all 69 growth buses are for private operators, another says that it is to be split. 140 replacement buses are for STA, that is known.  $521 million for private metro + outer metro subsidies, and $337 million for STA subsidies.  Doesn't sound like there will be much improvements to services, particularly in the STA areas on these figures.