Plans and funds are being drafted by the city of Sydney to replace core town bus routes with a light rail much more equipped to move travelers through high density areas. The system should be more efficient and an added benefit it will lower emissions.

Cities are increasingly turning to buses because they’re relatively low cost and flexible. They come in small units that can be scaled right up to Bus Rapid Transit; they use existing road space; and they can go wherever they’re required, including around unanticipated obstacles.

But like all technologies, buses aren’t the right solution for all occasions. High and concentrated patronage stretches the technical limits of buses and demands other mass transit solutions.

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