What is the minimum mounting height from the roadway for an electric arrow panel?

The minimum mounting height for an electric arrow panel is set to ensure visibility and safety for both drivers and pedestrians. A height of 7 feet above the roadway is designed to maintain an unobstructed line of sight, which is crucial for effective communication of traffic control messages. This height helps ensure that the arrow panel is visible above typical vehicles, minimizing the risk of it being blocked from view by larger vehicles or roadside obstacles. Additionally, mounting the panel at this height helps to prevent interference with pedestrians and cyclists, as well as reduce the likelihood of it being accidentally obscured by debris or landscaping features.