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A Method for Evaluating the Effects of Green Belt Characteristics on Main Roads on Drivers' Vision

A driver and green belt technology, applied in the directions of instrument, calculation, character and pattern recognition, etc., can solve the problem of lack of driver's visual effect evaluation and other problems, achieve the effect of comfortable aesthetic feeling and ensure stability

Active Publication Date: 2021-11-19
南京柏博交通科技有限责任公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, the research on urban green belts related to road traffic safety has mainly focused on the analysis of color and monotony, and lacks the evaluation of the driver's visual effect.

Method used

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  • A Method for Evaluating the Effects of Green Belt Characteristics on Main Roads on Drivers' Vision
  • A Method for Evaluating the Effects of Green Belt Characteristics on Main Roads on Drivers' Vision
  • A Method for Evaluating the Effects of Green Belt Characteristics on Main Roads on Drivers' Vision

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Experimental program
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Embodiment Construction

[0037] 1. Composition of the evaluation system

[0038] 1.1 Evaluation object

[0039] This method is suitable for evaluating the indicators that are visible, measurable (including direct or indirect method measurement or estimation), comparable and quantifiable in the driver's first perspective of the typical arterial green belt, and the indicators need to be evaluated by the driver. Produce some visual stimulation. For example, the height of the green belt, the width of the crown, the visibility of the trunk, the proportion of the sky, the distance between the plants, etc.

[0040] 1.2 Required instruments and personnel

[0041] 1) Hardware equipment: camera; laser rangefinder; reflector; meter ruler; color card; eye tracker (TobiiGlasses can be used), etc.

[0042] 2) Analysis software: SPSS; ErogLAB (note: this product is the supporting software for Tobii Glasses eye tracker in Sweden); EXCEL, etc.

[0043] 3) Required personnel: There are several experienced drivers, ...

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Abstract

The present invention is a method for evaluating the influence of characteristics of green belts on trunk roads on the driver's vision. The steps are as follows: the driver wears an eye tracker to drive the vehicle, uses the eye tracker to video and record the driver's eye movement; imports the video into The eye tracker analysis software divides the tree trunk visibility interest area, crown width interest area, tree height interest area, tree shape interest area, sky proportion interest area, etc., analyzes and derives the number of fixation points in each interest area, and uses a certain The ratio of the number of fixation points in the area of ​​interest corresponding to the specific green belt indicators to the number of fixation points in all indicators is the characteristic value; construct the relationship x between the green belt indicator influence value y and the green belt indicator values 1 is the height value, x 2 is the tree index value, x 3 is the ratio of crown width to road width, x 4 is the sky scale, x 5 is the trunk visibility index value, x 6 is the distance between plants; input the independent variable in the SPSS software, that is, the green belt index value x i The corresponding eigenvalue y i , to solve the undetermined constants a, b, c, d, e, f, g.

Description

technical field [0001] The invention relates to a method for evaluating the visual impact of a trunk road green belt on a driver, and belongs to the technical field of road traffic safety. Background technique [0002] According to the survey, the number of urban traffic accidents has been on the rise in recent years. Statistics show that the traffic accident rate caused by the comprehensive factors of the driver and the environment accounts for about 1 / 3, and 90% of the driving information of the driver is obtained through vision. , while the area of ​​green belts on urban roads accounts for a large proportion in the first perspective of driving, the green belts on urban arterial roads, as a hidden factor affecting urban road traffic safety, are often ignored. For a long time, the research on urban green belts related to road traffic safety has mainly focused on the analysis of color and monotony, and lacks the evaluation of the driver's visual effect. Therefore, it is nec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V20/56
Inventor 盛玉刚宋婉璐王奎元董雪妮
Owner 南京柏博交通科技有限责任公司