The Regional Shopping Center Zone (SC3) is established to provide a district in which the primary use of the land is for commercial and service uses to serve needs of people living in an entire region and to serve as a place of employment in pleasant surroundings close to the center of the regional population it is intended to serve. The SC3 zone should be located close to freeways and adjacent to major arterials to provide convenient access for major traffic volumes without hazard and without traversing through a residential area. It is intended that this zone shall be characterized by a variety of stores, shops, and service buildings grouped into an integrated architectural unit. The typical uses allowed in the zone will include virtually the whole range of retail and service establishments which can be attractively accommodated within a unified shopping center complex. When supported by the General Plan, an appropriate mixture of uses, such as residential housing, professional office, and institutional uses (preferably located above the ground level of mixed-use buildings), as well as entertainment and recreational venues, is allowable. Where necessary and appropriate, the bulk density design of the development should be tapered to provide for appropriate transition toward less intensive uses neighboring the district.