Parking meters shall be installed in the parking meter zones in the parking positions indicated, as closely adjacent to the curb as is practicable without exposing the meters to danger of injury by vehicles and without interfering with the free passage of vehicles or pedestrians. Each parking meter shall be so set as to show or display, by some appropriate device, that the respective allotted parking position is or is not legally in use; and each such meter shall be provided with an appropriate designation to indicate the legal parking time established by this chapter; and the operation of such meters shall indicate, by proper device and characters, the duration of legal parking in such position and the expiration of such period and the period of illegal or overtime parking.
(1991 Code, § 19-22)