(a) A temporary street closure is: (1) any march, demonstration, procession or motorcade consisting of persons, animals, or vehicles or a combination thereof upon the streets, parks or other public grounds within the city with an intent of attracting public attention that interferes with or has a tendency to interfere with the normal flow or regulation of traffic upon the streets, parks or other public grounds; or (2) any meeting, demonstration, picket line, rally or gathering of more than twenty-five persons for a common purpose as a result of prior planning that interferes with or has a tendency to interfere with the normal flow or regulation of pedestrian or vehicular traffic or occupies any public area in a place open to the general public.
(b) A temporary street closure that exceeds one city block in length or obstructs more than one intersection in the city, whether or not such occurrence is moving, and which is not conducted, managed or sponsored for commercial or advertising purposes or profit shall be designated Class A.
(c) A temporary street closure not exceeding one city block or one intersection on other than arterial or collector streets, in the city of Palo Alto, and along which at least two-thirds of the area is in a residential zone, and to which a majority of owners, residents or tenants of properties fronting upon such area consent, which is sponsored solely by such residents, tenants or owners, and is not for commercial or advertising purposes or profit shall be designated Class B.
(Ord. 4406 § 1 (part), 1997)