How far in front of a lane closure on a two-lane highway should an Arrow Board in flashing arrow mode be placed?

The appropriate distance for placing an Arrow Board in flashing arrow mode in front of a lane closure on a two-lane highway is 900 to 1500 feet. This distance is crucial for ensuring that drivers have adequate time to perceive the approaching lane closure and make any necessary adjustments to their driving, such as changing lanes or preparing to stop.

Proper placement of traffic control devices like the Arrow Board helps minimize the risk of accidents in construction or maintenance zones by providing clear guidance to motorists. At the specified distance, the visibility of the Arrow Board is maximized, allowing drivers to respond safely and effectively to the upcoming lane restrictions.

Placing the Arrow Board at this distance is also in line with industry standards and guidelines to enhance driver awareness and safety in work zones.