Stated purpose: “Accounts for all monies collected from parking meters in the City, except those monies from meters located in established vehicle parking districts. Monies in this fund may be used for the purchase, installation and maintenance of parking meters; the policing of parking meters and parking meter spaces; the collection of monies deposited in parking meters; the purchase, improvement, and operation of off-street parking facilities; the painting and marking of streets and curbs for the direction of traffic and parking of vehicles; and the installation of traffic signs, signals and other traffic control devices.”