What is the recommended drum spacing along a two-way traffic taper?

The recommended drum spacing along a two-way traffic taper is 10 feet center to center. This spacing is optimal for maintaining visibility and providing clear guidance for drivers navigating through the taper section of a work zone. The use of 10 feet allows for enough coverage to assist drivers in identifying the taper while still ensuring that the drums are not so close together that they create unnecessary visual clutter.

Using proper spacing is critical in effectively guiding traffic and enhancing safety. Drums placed too far apart may fail to communicate the appropriate lane shifts and could lead to confusion or dangerous situations. In contrast, spacing drums closer together might obstruct visibility and impair a driver's ability to perceive the layout of the taper. Therefore, adhering to the recommended 10 feet spacing enhances both safety and traffic flow in temporary construction areas.