Cost-benefit does not add up: Three WA projects worth $1b fall short of priority list standards We’re sorry, this service is currently unavailable. Please try again later. Dismiss Normal text size Advertisement The WA and federal governments will plough on with three road and rail projects worth a combined $1.067 billion in Perth and Albany despite the costs exceeding the expected community benefits. Business cases presented to Infrastructure Australia for the $481 million Byford rail extension, $415 million removal of level crossings along the Armadale train line, and $171 million Albany Ring Road stated the benefit-cost ratio for all three proposals scored a rating of less than one.