WAC 468-86-080. Least-cost planning methodology

The methodology shall consider direct and indirect costs and benefits for all reasonable options to meet planning goals and objectives. The methodology shall treat demand and supply resources on a consistent and integrated basis. The regional transportation planning organizations shall consult the guidelines set forth by the department for implementing a least-cost planning methodology. Regional transportation plans should incrementally incorporate least-cost planning methodologies as these concepts are developed. The regional transportation plan adopted after July 1, 2000, shall be based on a least-cost planning methodology appropriate to the region.