The Legislature finds and declares that , because substantial public moneys will be expended on the development of the West Side Freeway portion of Interstate Route 5, including the development of recreational and scenic observation sites in relatively undeveloped areas, and because new commercial and other development tends to locate at freeway interchanges in these areas, and this development may be detrimental to both traffic capacity and safety and to the preservation of the scenic characteristics along the freeway route, it is therefore necessary, in the interests of the public health, safety, and welfare, and to safeguard community economic development along the route of the freeway, to establish controls over the kinds, intensity, and design of land use and development that are permitted to occur at those interchanges along the freeway route from its intersection with the San Joaquin River to the junction of the route with State Highway Route 99 in the vicinity of Wheeler Ridge.