| Analysts have identified several potential concerns and controversies related to transportation PPPs.45 Some pertain to the increased private sector involvement in any PPP and others to the terms of individual projects, particularly brown-field concessions. Again, some of these may be mitigated to some extent through well-crafted enabling legislation and contract terms, as well as through careful project analysis and selection, procurement, and long-term contract management and oversight.46 | Potential PPP Concerns and Controversies • Loss of public control and flexibility • Private profits at the public's expense • Loss of future public revenues • Risk of bankruptcy or default |