If it costs more for someone to start work at a specific time, employees will demand more to work for you. In fact, if you were to require employers to pay for

If it costs more for someone to start work at a specific time, employees will demand more to work for you. In fact, if you were to require employers to pay for that peak travel, it wouldn't really make a difference. Most employers understand that such costs affect wages and how much money they'll save due to having a road system that breaks twice a day. And most employees will think they are getting something for free. It's win/win. Or neutral/fooled into thinking you won. And these same employees don't realize that their commute is currently costing them a lot more in opportunity costs than whatever the toll might be.