Emergency vehicles in the Queens borough of New York on Feb. 20. The shrill drone of the sirens lies at the center of a bill by two city lawmakers to transition to new siren sounds.

Emergency vehicles in the Queens borough of New York on Feb. 20. The shrill drone of the sirens lies at the center of a bill by two city lawmakers to transition to new siren sounds.

Emergency vehicles in the Queens borough of New York on Feb. 20. The shrill drone of the sirens lies at the center of a bill by two city lawmakers to transition to new siren sounds.

Emergency vehicles in the Queens borough of New York on Feb. 20. The shrill drone of the sirens lies at the center of a bill by two city lawmakers to transition to new siren sounds.