What is the minimum height for traffic cones in low-speed, low-volume areas?

The minimum height for traffic cones in low-speed, low-volume areas is 18 inches. This height is specified to ensure visibility and effectiveness in traffic control. In such areas, where vehicle speeds are typically slower and traffic volume is lower, the use of 18-inch cones strikes a balance between being noticeable to drivers and being practical for construction and work zones. Adequate height is crucial for attracting driver attention, particularly in situations where visibility may be compromised. The 18-inch cones are sufficiently tall for the intended purpose while not being excessively large, which might be unnecessary in lower speed environments. This standard supports overall road safety and effective communication of intended traffic patterns.