The provisions of these Standard Specifications for Structural Supports for Highway Signs@ Luminaires@ and Traffic Signals@ hereinafter referred to as the Specifications@ are applicable to the structural design of supports for highway signs@ luminaires@ and traffic signals. The types of supports covered in these Specifications are discussed in Article 1.4. The Specifications are intended to serve as a standard and guide for the design@ fabrication@ and erection of these types of supports. These Specifications are not intended to supplant proper training or the exercise of judgment by the designer@ and they include only the minimum requirements necessary to provide for public safety. The Owner or the designer may require the design and quality of materials and construction to be higher than the minimum requirements. The commentary directs attention to other documents that provide suggestions for carrying out the requirements and intent of these Specifications. However@ those documents and the commentary are not intended to be a part of the Specifications.