AASHTO (American Association of State Highway and Transportation Officials) Type I, II, and III barricades are standardized safety devices used primarily in road construction and traffic control settings. These barricades are designed according to guidelines established by AASHTO to ensure they meet specific safety and visibility requirements. Their main purpose is to guide, warn, and protect drivers and pedestrians in and around construction sites, traffic diversions, and other temporary roadway conditions. Key Features of AASHTO Barricades:

• Standardized Design: Type I, II, and III Barricades are manufactured to meet strict standards for durability, stability, and visibility, ensuring consistent quality and performance across all usage scenarios.
• High-Visibility Reflective Sheeting: These barricades are equipped with retroreflective sheeting that provides high visibility at night or in poor light conditions. The sheeting typically features alternating orange and white stripes, which are crucial for catching the attention of road users and conveying warning signals effectively.
• Variety of Types: AASHTO guidelines define several types of barricades, including Type I (single-sided), Type II (double-sided), and Type III (larger, multi-striped barricades for more significant roadblocks). This variety allows for appropriate usage in different traffic and pedestrian scenarios.
• Materials: They can be constructed from a range of materials including wood, plastic, or metal, depending on the required longevity and environmental considerations. Each material offers different benefits, from the durability of metal to the cost-effectiveness and light weight of plastic.
• Portable and Versatile: Many barricades are designed to be portable, allowing for easy relocation and storage. This portability is crucial for responding quickly to changing traffic conditions and for use in emergency situations.

Type I, II, and III Barricades are essential tools for traffic management and road safety, providing reliable and effective solutions for managing both expected and unexpected road conditions. They are widely used by state and local transportation departments, as well as private construction firms, ensuring that road safety is maintained during periods of construction, maintenance, or any temporary disruptions.