The district currently has about 210 bus drivers and is able to use 13 additional approved contracting companies to supplement their bus service.

The school district has about 105 vacancies and is actively hiring through its website.

Students who live more than one to one-and-a-half miles from their school, as well as students on education plans that have curb-to-curb transportation service required, are eligible for the transportation plan.

Approximately 13,000 families are currently enrolled in the plan. Families have until the end of September to apply for this program.

https://www.cbsnews.com/philadelphia/news/parents-can-be-paid-up-to-300-per-month-3000-yearly-to-drive-their-kids-to-school/

So, it’s millions.
But it does seem like this is for “difficult to bus” students.