The regional planning commission shall continue to study and develop methods to provide incentives for:
1. Mixed-use development, transit-oriented development, the development of a brownfield site and development which minimizes the negative impact on the environment. As used in this subsection, “brownfield site” has the meaning ascribed to it in 42 U.S.C. § 9601.
2. Large commercial development which provides employee parking at a site other than the commercial development. Such incentives may be developed in cooperation with the regional transportation commission and other local governmental entities.