The purposes of this chapter, which is adopted in the exercise of the police power, are the following: to lessen congestion in the streets; to secure safety from fire, panic and other dangers; to provide adequate light and air; to prevent the overcrowding of land and buildings; to avoid undue concentration of population; to conserve the value of property; to encourage the most appropriate use of land; and generally, to promote the health, morals and welfare of the inhabitants of the Township of Cinnaminson.