朱梦悦 马健霄 刘宇航 仇舒诚 丁子羿

摘 要：为探寻驾驶人视认交通标志效率，本文构建景区道路标志视认效率评价体系，设计实地视线追踪实验，采集驾驶人在景区道路对交通标志的视认数据;参照数据变化规律及指标特性确定各项眼动特征数据的最优值和临界值，建立交通标志视认效率评价指标集;采用基因选择算法对评价指标进行重要度排序，确定各评价指标对评价体系的影响程度;利用功效系数法对指标进行标定，并建立视认效率评价体系。应用评价体系对南京钟山风景名胜区进行视认效果评价，从视认效率出发提出交通标志设置改善优化建议。

关键词：交通安全;交通标志;景区道路;视觉特性;效率评价;基因选择算法

中图分类号：U121    文献标识码：A   文章编号：1006-8023（2021）04-0135-09

Evaluation of Visual Recognition Efficiency of Traffic Signs in Scenic Spots

ZHU Mengyue， MA Jianxiao*， LIU Yuhang， QIU Shucheng， DING Ziyi

（College of Automobile and Traffic Engineering， Nanjing Forestry University， Nanjing 210037， China）

Abstract：In order to explore the efficiency of drivers' visual recognition of traffic signs， an evaluation system of visual recognition efficiency of road signs in scenic spots was constructed. The field eye-tracking experiment was designed and data of drivers' visual recognition of traffic signs in scenic spots were collected. Based on the data variation rule and index characteristics， the optimal value and the critical value of the eye movement characteristic data were analyzed and the evaluation index set of traffic sign recognition efficiency was established. Then， support vector machine-recursive feature elimination was used to rank the significance of evaluation indexes to determine the degree of influence of each evaluation index on the evaluation system. In addition， the calibration index of efficacy coefficient method was adopted to establish the evaluation system of visual recognition efficiency. Finally， the system was used to evaluate the visual recognition in Nanjing Zhongshan Mountain National Park and some suggestions on improvement and optimization of traffic sign setting from the perspective of visual recognition efficiency were proposed.

Keywords：Traffic safety; traffic signs; scenic road; visual characteristics; efficiency evaluation; support vector machine-recursive feature elimination

收稿日期：2021-03-09

基金项目：江苏省交通运输科技项目计划（2016T04）;南京市科协软科学研究项目（NJKX2017RKX-05）

第一作者简介：朱梦悦，硕士研究生。研究方向为交通安全与交通大数据。E-mail：125620776@qq.com

*通信作者：马健霄，博士，教授。研究方向为交通安全技术。E-mail：majx@njfu.edu.cn

引文格式：朱夢悦，马健霄，刘宇航，等.景区道路交通标志视认效率评价[J].森林工程，2021，37（4）：135-143.

ZHU M Y， MA J X， LIU Y H， et al. Evaluation of visual recognition efficiency of traffic signs in scenic spots[J]. Forest Engineering，2021，37（4）：135-143.

0 引言

伴随旅游业的迅速兴起，兼具林区特征的景区不断增加。由于道路交通性质的不同[1]，城市道路交通设计方法不能完全适应此类景区交通出行特性，且部分景区交通设施设计仍沿用公路标准，无法高效地为驾驶人提供行车信息。本研究通过对兼具林区特征的景区道路展开交通标志视认效率研究，旨在为此类景区及林区道路交通设施设计提供参考，保障行车安全。……