Restaurants aren't going to change their hours, hospitals aren't going to change their shifts, what motivation does an employer have to make changes? It doesn't cost employers anything so they are unlikely to care and jobs aren't exactly elastic goods either.
Restaurants don't need to change their hours - they need their employees in before the rush hour and working during it because that is when people are going to be there. You 7:45 coffee on the way to work was made by someone who got in at 6:00 am to setup the coffee pot. Hospitals aren't going to change their shifts (unless staff demands it - they might), but a large number of people going in at rush hour are not doing shift work where they need to be in at a particular time. I can adjust my schedule a lot if I want, fares (and traffic) can be motivation to doso.
