All of the territory within 200 feet of the premises of each
hospital in this City is hereby created and established as a zone
of quiet. The Chief of Police is hereby authorized to erect and maintain
in a conspicuous manner within this area such signs and markings as
are necessary to designate it as a zone of quiet.
The Chief of Police may temporarily establish a zone of quiet
upon any street where a person is seriously ill. Said temporary zone
of quiet shall embrace all territory within a radius of 200 feet of
the building occupied by the sick person. Said temporary zones of
quiet shall be designated by the Chief of Police by placing at a conspicuous
place in the street a sign or marker bearing the words "Illness Quiet
Zone."
No person operating a vehicle within any designated and posted
zone of quiet shall sound a horn or other warning device on said vehicle
or make any loud or unusual noise in such a zone except in an emergency.