There are a lot of buses that are parked, you could use them as a private transportation for disabled people...Charge them like: $20 a month....

55 people going, 3 times a week will be: 55 passengers x $20 = 1,100

then 55 people going the rest 4 days a week= $1,100...

but they all are not going to be driving the whole day: So that´s 1100 x 3 = 3,300....

YOu will make: $2,200 + 3,300 = $5,500 per month....

And that´s just, 1 bus...In a big country you will make way more....