What is the required spacing for orange and black TTC signs on a 2-way, 2-lane rural roadway?

The required spacing for orange and black temporary traffic control (TTC) signs on a 2-way, 2-lane rural roadway is indeed 500 feet. This distance is established to ensure that drivers have adequate warning and time to react to changing road conditions due to work zones. The signage needs to be visible enough to capture the attention of motorists traveling at potentially high speeds typical of rural roadways.

Effective spacing helps to reinforce the message conveyed by the signs and provides a consistent and clear indication of hazards ahead. Sign placement is a crucial factor in maintaining safety for both road users and workers. Additionally, the 500-foot spacing aligns with guidelines recommended by various traffic control device standards, emphasizing the need for effective communication of temporary changes in roadway conditions.