Section 21101.2 Of Article 3. Local Regulation From California Vehicle Code >> Division 11. >> Chapter 1. >> Article 3.
21101.2
. Local authorities may adopt rules and regulations by
ordinance or resolution to provide that if a peace officer, as
defined in Chapter 4.5 (commencing with Section 830) of Title 3 of
Part 2 of the Penal Code, determines that the traffic load on a
particular street or highway, or a portion thereof, is such that
little or no vehicular flow is occurring and, additionally, if the
peace officer finds that a significant number of vehicles are not
promptly moving when an opportunity arises to do so, then the peace
officer may divert vehicles, excepting public safety or emergency
vehicles, from that street or highway, or portion thereof, subject to
traffic congestion until such time as reasonably flowing traffic is
restored.