Keeping your construction site safe isn't just a priority – it's a legal obligation, especially when your work impacts public or site traffic. At Granite Construction Supply & Sign Shop, we understand that navigating the regulations surrounding traffic control devices can be challenging. Using the wrong equipment or placing it improperly can lead to significant fines, project shutdowns, and, most importantly, serious accidents. Ensuring you meet the legal standards for all traffic devices is crucial for protecting your workers, the public, and your company. Here are three key legal requirements you need to know. Shop today.
The cornerstone of traffic control regulation in the U.S. is the Manual on Uniform Traffic Control Devices (MUTCD). This federal standard provides detailed specifications for the design, size, color, reflectivity, and placement of all traffic control signs, signals, barricades, cones, and other traffic devices. Using non-compliant traffic signs or devices is a direct violation and can carry heavy penalties. Always source your equipment from a reputable supplier, like our traffic sign shop, that guarantees MUTCD compliance.
Simply having compliant traffic control devices isn't enough. Legal requirements strictly dictate how they are used. This includes providing adequate advance warning distances for drivers approaching a work zone, ensuring traffic signs are positioned at the correct height and lateral distance from the roadway, and maintaining clear visibility. 
For many projects, particularly those affecting public roads, a formal Traffic Control Plan (TCP) is legally required before work begins. This plan details the specific layout and types of traffic control devices needed for that particular job site configuration and traffic conditions. Furthermore, regulations often require that personnel responsible for setting up, maintaining, or operating traffic devices (including flaggers) receive appropriate training and certification.