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circulation and conjestion problems. The ordinance is minimal in that in no cases does it require the installation of enclosed garage facilities for residential units as most other zoning ordinances mandate, with carports permitted only under special circtm~stances and conditions. The minim~n unit sizes required by the R $ and R 4 Districts are only the most absolute of minimums. The R 5 requires 300 square feet for a bachelor unit; S00 for a one bedroom, and 750 for a two-bedroom. The R 4 standards indicated minimums of 450 square feet for a bachelor, 650 square feet for a one bedroom, and 800 square feet for a two-bedroom. Oddly enough senior citizens' developments are only permitted in the R 4 with a conditional use permit, the residential district which has the higher unit minimum sizes. The lower unit sizes would be more appropriate for the development of housing projects for the elderly. Publications have been distribured by such organizations as the American Society of Planning Officials dealing with such issues as zoning standards for housing of the elderly concerning occupant and structural characteristics, occupancy guarantees, safety features, density, area per room and other development standards which may be used as guidelines in revamping the Santa Aha ordinance. For low income housing in general, the concept of housing density bonuses and impact zoning have already been dis- cussed in other sections of this study, and similar publications have been released by ASPO and the American Institute of Planners concerning criteria and guidelines. Standardized guidelines and criteria for the design of private, as well as public, facilities accu..,odating the handicapped can be obtained from the federal goven,,~ent (Housing and Urban Develo~ent or Health, F~ducation and Welfare}. Of more general importance is the necessity for the City of Santa Ana to comprehensively revise its zoning ordinance to: (a) upgrade the overall quality of design and mmenities supplied for future new residential units; (b) modify residential land use districts to more appropriately reflect the problems of modifying or enhancing existing units; and (c) develop standards for the long term maintenance of units and ameni- ties to stem potential deterioration and spread of blight. The eleven target areas, even though substantially single family in character, were mixed zoning districts and predominantly R 2 and R 3. The area west of the Santa Ana River consisting of four target areas was pre- dominantly R 2 and R ZB (parking modification), with C 1 and C 2 strip com- mercial along the arterial highways. R 1 zoning was found only in the Silver Acres target area. A 1, General Agricultural, zoning was applied to the mobile home parks and areas of former dairy operations. The six target areas in the Central Corridor Area of the City had the most mixed zoning 000027