08-22-2016, 05:41 PM
The issue with operators is that while a rush-hour service-level might only be needed for 2-3h, operators tend to need to work shifts of at least 6-7h, so you wind up paying for many hours of unspent work. Rush hour service times are also often far enough apart that you need separate operators for each one. I'd go into the issues that came up with Ottawa's system, operators, hours worked vs paid, and the ensuing strikes, but it's out there should you be curious.