This chapter shall provide an additional and alternative method for doing the things authorized by this chapter and shall be regarded as supplemental and additional to any powers and rights conferred on SANDAG by other laws. When carrying out its responsibilities under this chapter, SANDAG shall comply with the requirements imposed by the San Diego Regional Transportation Consolidation Act (Chapter 3 (commencing with Section 132350) of Division 12.7 of the Public Utilities Code) not in conflict with this chapter, including, but not limited to, noticing, holding, and conducting its meetings in accordance with the Ralph M. Brown Act (Chapter 9 (commencing with Section 54950) of Part 1 of Division 2 of Title 5 of the Government Code).