How high must traffic cones be if the speed limit around the work zone is 35 MPH?

For work zones where the speed limit is 35 MPH, the guidelines for traffic cone height are established to ensure visibility and safety. It's important that cones are tall enough to be easily seen by drivers traveling at higher speeds.

A height of 28 inches is specified for traffic cones in work zones with speed limits between 31 and 40 MPH, making them the appropriate choice for a 35 MPH zone. This height allows the cones to be visible above the vehicle hood of passing cars, helping to alert drivers to potential hazards or changes in the roadway ahead.

Cones shorter than this height may not provide sufficient visibility at the required speed and could lead to unsafe situations due to drivers failing to notice them in time. Thus, opting for a cone height of 28 inches is aligned with safety standards and effective visibility practices in traffic management.