Comment by bombcar
4 days ago
Busses don't have to sit in traffic, but they can (and trams can too, in some cases)
Bus rapid transit, when done right (basically, almost like a tram) can be quite successful: https://www.youtube.com/watch?v=fh1IaVmu3Y8
When you have a cost overrun on BRT, the easiest way to save money is to share ROW with cars.
Since it's harder to make that choice when you're building rail, it's more likely to be done right.