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

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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.
Publisher
MDPI
Issue Date
2020-05
Language
English
Article Type
Article
Citation

SENSORS, v.20, no.10

ISSN
1424-8220
DOI
10.3390/s20102763
URI
http://hdl.handle.net/10203/275046
Appears in Collection
CE-Journal Papers(저널논문)
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