We have a trolley/bus in our area that some of our volunteers use and cost is $1 per trip, so it is very reasonable, but we have never offered to pay the transportation for our volunteers. I fear that would open up a can of worms, which is a shame, but it is reality. If you have a Foundation within your hospital, that might be an option to check into. Our Foundation offers transportation vouchers/cards, but honestly I think they are gas cards and geared to patients that need to come for medical treatment/appointments.