[Kozak]

Light rail goes in fixed limited locations. Buses are flexible and can be rerouted as transit patterns change.

[Willie Green]

Light rail goes in fixed limited locations. Buses are flexible and can be rerouted as transit patterns change.

Yes, light rail is best suited for those high-volume local commuter routes that don't change.
Buses are best suited to less popular routes where ridership is more unpredictable.