第一版《公路标志、灯具和交通信号的结构支架规范》是以第六版《公路标志、灯具和交通信号的结构支架标准规范》中的设计规范为基础的，并被其取代。本规范包括LRFD校准、负载和电阻的当前研究，以及其他AASHTO文件中的相关规范。此外，还增加了基于最佳实践的制造、施工、检验和资产管理的全新章节。这些荷载和阻力系数设计规范中关于公路标志结构支架的规定， 灯具和交通信号灯（以下简称规范）适用于以下结构设计: 公路标志、灯具和交通信号的支架（LRFD结构支架）。本规范旨在作为设计、制造、施工、检验和资产管理的标准和指南。这些规范无意取代设计师的适当培训或判断。他们 仅包括提供公共安全所需的最低要求。业主或设计师可能要求设计、材料质量、制造、施工和资产管理高于最低要求。 这些规范的设计规定采用了荷载和阻力系数设计（LRFD）方法。这些因素是根据当前的统计知识从可靠性理论发展而来的 荷载和结构性能，包括材料特性。抗震设计不包括在这些规范中，此类程序应由业主规定。PDF下载版本包含2017年中期修订版。这些临时修订不包括在打印版本中，但可以从下面的链接下载和打印。

The first edition of theLRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signalsincorporates and builds upon the design specifications found in the Sixth Edition ofStandard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals, which it supersedes. The specification includes current research on LRFD calibration, loads, and resistances plus relevant specifications from other AASHTO documents. Completely new sections on Fabrication, Construction, Inspection, and Asset Management based upon best practices have also been added.The provisions of these load and resistance factor design 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 (LRFD Structural Supports). The Specifications are intended to serve as a standard and guide for design, fabrication, construction, inspection, and asset management.These Specifications are not intended to supplant proper training or the exercise of judgment by the Designer. They include only the minimum requirements necessary to provide for public safety. The Owner or the Designer may require the design, quality of materials, fabrication, construction, and asset management to be higher than the minimum requirements.The design provisions of these Specifications employ the Load and Resistance Factor Design (LRFD) methodology. The factors have been developed from the theory of reliability based on current statistical knowledge of loads and structural performance, including materials properties.Seismic design is not included in these Specifications, and such procedures should be prescribed by the Owner.The PDF Download version incorporates the 2017 Interim Revisions. These Interim Revisions are not included with the print version, but can be downloaded and printed from the link below.