Columbia Regulation of speed by traffic signals ordinance (§ 14-225)
Chapter 14: Motor Vehicles and Traffic · Article IV. Operation
The city traffic engineer is authorized to regulate the timing of traffic signals so as to permit the movement of traffic in an orderly and safe manner at speeds slightly at variance from the speeds otherwise applicable within the district or at intersections, and shall erect appropriate signs giving notice thereof.
Official source: City of Columbia official Code of Ordinances (online): look up Sec. 14-225
Text from Supplement 139 (September 3, 2026).
Last checked November 1, 2026. The city's official copy controls; this page is a reading copy, not legal advice.