encouraging the most appropriate use of land;

preventing overcrowding of land;

conserving the value of land and buildings, including the conserving of natural resources and the preventing of blight and polluting of the environment;

lessening congestion of traffic including, but not limited to, providing adequate operating area for bicycles and secure bicycle parking;

preventing undue concentration of population;

providing for adequate light and air;

reducing hazards from fire and other dangers;

assisting in the economical provisions of transportation, water, sewerage, schools, parks and other public facilities;

encouraging housing for persons of all income levels;

preserving and increasing the amenities of the City; and

giving effect to policies of the Watertown Master/Comprehensive Plan or other adopted land use plans that currently apply and may from time to time be amended, and to applicable policies of the Commonwealth of Massachusetts that currently apply and may from time to time be amended.