本技术报告提供了自动系统的设计者和用户所需的信息，用于测量道路和隧道照明系统的光度特性，以了解此类系统的性能。本指南的主要目的是明确定义和描述这些测量系统的技术限制和特点。通过这种方式，可以评估不同系统中采用的技术解决方案的优缺点。当测量结果与手动系统或数学算法和/或计算机模拟的理论评估结果进行比较时，可以评估其测量不确定度并理解差异。本指南侧重于测量水平照度和路面亮度的系统，但大部分指南与其他数量和测量条件有关。 本指南分为两部分:审查基本光度量，其中强调了其物理或标准定义、数学评估和可测量近似之间的差异（第2条和第3条）；审查仪器的类型和特性、测量条件和方法、测量结果的不确定度评估和数据阐述（第5条、第6条和第7条）。

This Technical Report gives the information which designers and users of automatic systems intended to measure the photometric properties of road and tunnel lighting systems need in order to understand the performance of such systems. The main aim of this guide is to clearly define and describe the technical limitations and characteristics of these measurement systems. In this way the advantages and disadvantages of the technical solutions adopted in different systems can be assessed. Their measurement uncertainty can be evaluated and discrepancies understood when the measurement results are compared with those obtained by manual systems or by theoretical evaluations from mathematical algorithms and/or computer simulations. The guide concentrates on systems that measure horizontal illuminance and luminance on road surfaces but much of the guidance is relevant to other quantities and measurement conditions. The guide is divided into two parts:Review of essential photometric quantities where differences between their physical or normative definition, their mathematical evaluation and their measurable approximation are highlighted (Clause 2 and Clause 3);Review of the types and characteristics of instruments, the conditions and methodologies of measurements, the evaluation of uncertainty in measurement results and data elaboration (Clause 5, Clause 6 and Clause 7).