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Electronic toll collection (ETC) system has been developed and applied in most provinces of China, but the quality inspection and evaluation standard for ETC system doesn’t exist. According to the current situation of ETC system application in most provinces, in order to improve the efficiency and operation stability of ETC system, the quality inspection evaluation and control scheme for ETC system was studied in this paper, based on two Chinese national standards GB/T20851-2007 on ETC dedicated short range communication series standards and JTG F80/2 on quality inspection and evaluation standards for highway engineering. Quality assessment test were summarized into several items in checklists and the key items were put forward. Then the comprehensive method of evaluation and quality inspection control for ETC system was present.

Along with improvement of light emitting diode (LED) technology, luminescence safety guiding facilities have been applied widely on China's highways, especially in mountainous areas. However, it is difficult to carry out scientific assessment of the application effect. In reference to the program "luminescence safety guiding technology application in Lhasa-Gongga airport highway construction," a hierarchy criteria system is created, based on the determination of assessment criteria and weights. According to fuzzy set transformation principle, factors are defined by membership function to create judgment matrices and then criteria of different layers are evaluated by qualitative or quantitative analysis. Finally, the application effect of luminescence safety guiding facilities is evaluated by fuzzy synthesized judgment.

Aimed to improve stability and sustainability, maintenance assessment evaluates the running status of highway electromechanical systems by use of a scientific and reasonable evaluation method. Many complex components, such as different divisions with specific technical criteria, form a multi-criteria, multi-level evaluation system. Different from completion acceptance assessment, there is ambiguity in the qualified judgment of maintenance assessment. FAHP (fuzzy analytical hierarchy process) introduced in this paper is applied in the maintenance assessment of highway electromechanical systems, which is based on the research of AHP (analytic hierarchy process) and a fuzzy comprehensive evaluation method. This evaluation method can quantify qualitative criteria with the Delphi method, determine a subordinate degree by triangle function, set weight matrix by AHP, and establish a hierarchy fuzzy evaluation model with judgment matrix. At the end, the assessment result is normalized. To resolve the contradiction and complexity of maintenance assessment, this paper applies FAHP which combines both qualitative and quantitative criteria with typical cases.