How often should traffic signals be inspected?

Answer: C — Typically at least once per year

Traffic signals should typically be inspected at least once per year to ensure their proper functioning and safety for roadway users. This annual inspection is crucial for identifying any maintenance issues, such as burnt-out bulbs, damaged components, or misaligned signals, which could lead to traffic safety hazards. Regular inspections help to maintain efficient traffic flow and reduce the risk of accidents caused by malfunctioning signals. Adhering to this inspection frequency upholds standards for traffic signal operations and contributes to the overall safety and functionality of the transportation system. While more frequent inspections may be necessary in high-traffic areas or depending on specific local regulations or conditions, the once-per-year standard is a widely accepted practice for maintaining traffic signals.