Who has the overall responsibility for the design and maintenance of traffic control devices?

The overall responsibility for the design and maintenance of traffic control devices lies with the public agency or official having jurisdiction. This responsibility includes ensuring that all traffic control devices, such as signs, signals, and road markings, meet established standards and regulations that ensure safety for all road users.

Public agencies are tasked with assessing traffic patterns, road conditions, and the needs of the community to implement effective traffic control measures. They ensure that devices are not only properly designed but are also maintained regularly to remain visible and effective. This responsibility is crucial for maintaining safe transportation systems and responding to any changes that may occur due to construction, accidents, or roadway modifications.

The involvement of private contractors, local law enforcement, or community volunteers may occur in specific contexts, such as during temporary events or construction projects. However, the overarching responsibility for traffic control remains with the public agency or official because they have the authority and expertise to ensure compliance with legal and safety standards.