Which standards must all work zones conform to?

The correct answer, which states that all work zones must conform to the MUTCD, Local, State, and Comcast standards, is accurate because the Manual on Uniform Traffic Control Devices (MUTCD) provides the national standards for traffic control devices, including signage, signals, and road markings in work zones. It ensures consistency, safety, and efficiency in traffic management across different jurisdictions.

Local and state regulations are also critical, as they may include additional requirements specific to the area in which the work zone is situated. These regulations are essential to accommodate regional safety needs or specific local infrastructure constraints.

While Comcast may seem an outlier in this context, it is important to consider that local utility companies could have specific guidelines or standards that impact work zones, especially when modifying or impacting their utilities. Therefore, thorough compliance with all these standards is necessary to maintain safety and minimize disruption in work zones.

Other options, such as only relying on DOT and OSHA regulations, would not provide the comprehensive framework necessary for effective work zone management. Similarly, focusing solely on city and county regulations or federal and state guidelines would overlook the critical structure offered by the MUTCD. A well-rounded approach that includes the MUTCD along with local and state requirements ensures that work zones are managed safely