The purpose of the RAA district is to achieve the same character, stability, and sound residential environment as intended for the one-family rural residential districts RR. The difference between RR and RAA districts is that a higher density of population will be permitted through the construction and occupancy of one-family dwelling structures on smaller lot areas. There is no intent to promote by these regulations a residential district of lower quality than the RR one-family rural residential districts. This section applies to the RAA district.