25 Which key for a successful public-private partnership is defined as: While the private partner may provide a portion or all of the funding for capital improvements, there must be an identifiable revenue stream sufficient to retire this investment and provide an acceptable rate of return over the term of the partnership. The income stream can be generated by a variety and combination of sources (fees, tolls, availability payments, shadow tolls, tax increment financing, commercial use of underutilized assets or a wide range of additional options), but must be reasonably assured for the length of the partnership's investment period. Public sector champion Statutory environment Public sector's organized structure Detailed contract (business plan) 1 pts Clearly defined revenue stream