AARP has released a report called Weaving It Together: A Tapestry of Transportation Funding for Older Adults:

This report provides insight into how transportation services for older adults and persons with disabilities are funded. With a growing population in need of transportation and limited funds for these services, providers need to creatively leverage existing and untapped funding sources to fill gaps in service. Coordination of these limited resources is also key and must be supported by providers and all levels of government.

The report’s authors interviewed seven diverse transportation providers to see how they manage to keep service funded.  To stay in business, these organizations worked hard to find a broad tapestry of funding: “Every provider documented at least 10 sources of funding; three providers reported more than 45.”