| 基于视知觉的交通可变标志信息认度评价 |
| |
| 引用本文： | 刘伟,杜建玮,陈科全. 基于视知觉的交通可变标志信息认度评价[J]. 中国公路学报, 2020, 33(1): 163-171. DOI: 10.19721/j.cnki.1001-7372.2020.01.017 |
| |
| 作者姓名： | 刘伟 杜建玮 陈科全 |
| |
| 作者单位： | 1. 重庆交通大学交通运输学院, 重庆 400074;2. 东南大学交通学院, 江苏南京 211189 |
| |
| 基金项目： | 重庆市社会事业与民生保障科技创新专项项目（cstc2015shms-ztzx30015）;城市交通管理集成与优化技术公安部重点实验室项目（2017KFKT08） |
| |
| 摘 要： | 交通可变信息标志(Variable Message Signs,VMS)作为交通信息动态发布设施,被广泛应用于城市道路及高速公路管理中.由于VMS发布的图符信息数量及大小等缺乏标准,无法衡量发布信息是否有效传递给了驾驶人.为了准确度量VMS发布信息的视认有效性,基于驾驶人视知觉理论和VMS识别过程的特征,建立VMS信息...
|
| 关 键 词： | 交通工程 VMS 认度 知觉理论 评价指标 |
| 收稿时间： | 2018-09-02 |
Evaluation of Traffic Variable Message Sign Information Recognition Based on Visual Perception |
| |
| LIU Wei,DU Jian-wei,CHEN Ke-quan. Evaluation of Traffic Variable Message Sign Information Recognition Based on Visual Perception[J]. China Journal of Highway and Transport, 2020, 33(1): 163-171. DOI: 10.19721/j.cnki.1001-7372.2020.01.017 |
| |
| Authors: | LIU Wei DU Jian-wei CHEN Ke-quan |
| |
| Affiliation: | 1. Department of Traffic and Transportation Engineering, Chongqing Jiaotong University, Chongqing 400074, China;2. School of Transportation, Southeast University, Nanjing 211189, Jiangsu, China |
| |
| Abstract: | As a dynamic traffic information release system, variable message signs (VMS) are widely used in the management of urban roads and highways. Because of a lack of standards on the number and sizes of VMS, determining whether the information is effectively transmitted to drivers is impossible. To accurately measure VMS information legibility, based on the perceptual theory and the characteristics of driver visual perception, we built a model to quantify the amount of VMS information and introduced the concept of recognition. Considering the amount of information that influences the valid recognition of static VMS as well as a driver's kinetic eyesight and the speed effect, we established an information-recognition evaluation model by using recognition rates as criteria. Considering the cycle of information and redundant distance as factors influencing a valid recognition of dynamic VMS, we used cycle validity as a judgment criterion to establish the cycle availability of the recognition evaluation model. Then, through a visual information acquisition experiment, the ratio of information available to the actual information in one second could be obtained as the information coefficient. Results show that as the amount of VMS information is 50 bits, the information coefficient is nearly constant at 1, and participants can acquire the most information. When the amount of information is increased to 56-105 bits, the information coefficient of participants is exponentially reduced and then tends to be stable. Finally, with a VMS on actual roads used as an example, combined with the use of a recognition evaluation model and an actual experiment to evaluate VMS, the results of a check test are as follows. When 90 bits is exceeded, the amount of static VMS is slightly overloaded. When the dynamic VMS cycle availability is less than 0.9, drivers cannot receive VMS information completely. The results show that the model can provide a reference for VMS design and information release management. |
| |
| Keywords: | traffic engineering variable message sign recognition perceptual theory evaluation indices |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国公路学报》浏览原始摘要信息 |
|
点击此处可从《中国公路学报》下载全文 |
|
