Modeling Formulation Mechanism of Remembered Utility in Evaluating Driving Environment

驾驶员基于路段宏观交通状况对交通服务质量（QOTS）的回顾性评价，不一定等同于驾驶员基于路段各点微观交通状况对QOTS现场评价的简单相加。要理解这一现象，需要理解一种机制，通过该机制，基于驾驶员记忆的基于区段的评价从基于点的评价形成。本研究提出以“驾驶者记忆效用”描述路段评价形成的机制模型，将点基评价与路段评价之间的关系表述为“确信度”的更新过程，并以“点基感知效用”表述点基评价的结构。通过一系列的实验，驾驶员的感知评价和基于该模型的估计评价具有良好的适应性。

Driver's retrospective evaluation for the quality of traffic service (QOTS) based on macroscopic traffic conditions of a road section is not necessarily equivalent for the simple summation of driver's spot evaluation for the QOTS based on microscopic traffic conditions at each point of the section. Understanding this phenomenon requires the understanding of a mechanism through which section-basis evaluation based on driver's remembrance is formed from point-basis evaluations. This research project proposed a mechanism model for the formation of section-basis evaluation described by using "driver's remembered utility", while formulating the relation between the point-basis and section-basis evaluations as the updating process of "the degree of certitude", and formulating the structure of point-basis evaluation by using "point-basis perceived utility". Through a series of experiments, perceived evaluation of driver and estimated evaluation based on the proposed model show good fitness.