Elderly Challenge - Observation 4

We all know that the elderly usually have a difficulty walking and they are not as agile as they used to be. I noticed a elderly man who was on wheel chair taking a bus. I also noticed that there was a ramp on the bus that could be folded and unfolded. I think that this is a good invention and it makes the bus wheel chair friendly. It also has a bus button that is lower so that the wheel chair bound man could press it and he could travel on his own.