Drivers’ Visual Perception Quantification Using 3D Mobile Sensor Data for Road Safety

Sensors

Ayoung Kim¹  Kanghee Choi²  Youngchul Kim²  Giyoung Byun² 

[1] KAIST IRAP Lab, Department of Civil and Environmental Engineering, KAIST, Daejeon 34141, Korea;KAIST Urban Design Lab, Department of Civil and Environmental Engineering, KAIST, Daejeon 34141, Korea;

关键词: visibility;    visual perception;    point cloud;    driver’s safety;   

DOI  :  10.3390/s20102763

来源: DOAJ

【 摘 要 】

To prevent driver accidents in cities, local governments have established policies to limit city speeds and create child protection zones near schools. However, if the same policy is applied throughout a city, it can be difficult to obtain smooth traffic flows. A driver generally obtains visual information while driving, and this information is directly related to traffic safety. In this study, we propose a novel geometric visual model to measure drivers’ visual perception and analyze the corresponding information using the line-of-sight method. Three-dimensional point cloud data are used to analyze on-site three-dimensional elements in a city, such as roadside trees and overpasses, which are normally neglected in urban spatial analyses. To investigate drivers’ visual perceptions of roads, we have developed an analytic model of three types of visual perception. By using this proposed method, this study creates a risk-level map according to the driver’s visual perception degree in Pangyo, South Korea. With the point cloud data from Pangyo, it is possible to analyze actual urban forms such as roadside trees, building shapes, and overpasses that are normally excluded from spatial analyses that use a reconstructed virtual space.

【 授权许可】

Unknown