基于驾驶员视觉兴趣区的沙漠草原公路曲线间直线段线形指标优化

doi:10.13229/j.cnki.jdxbgxb20180874

Abstract

Abstract:

The driver's eye movement experiments during driving are conducted on a typical desert grassland highway section, The coordinates of the point of view of the driver under normal driving conditions, the driver's continuous gazing time and the vehicle speed are collected, which are then converted into an area of visual interest per unit time. Through the correlation analysis and model establishment of the area of interest area and the length of the straight line section per unit time, the shortest straight line length between the curves of the desert grassland road must be guaranteed to drive for 6 s, the ideal length of long straight line segment is driving 60 s, and the length of the longest straight segment is driving 140 s, The values is in the reasonable rang compared with the domestic and foreign relative index, which can provide a theory for the selection of the index of the straight line between the curves in the desert grassland area.

Key words: road engingeering, desert grassland region, highway, length of straight segment, visual interest area, index optimization

CLC Number:

U491

Fang WANG,Xiao-guang LI,Hui GUO,Jia HU. Optimization of straight segment index between highway curves of desert grassland based on driver’s visual interest region[J].Journal of Jilin University(Engineering and Technology Edition), 2020, 50(1): 114-120.

Figures/Tables 15

Fig.1

Table 1

Fig.2

Table 2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Table 3

Example of calculation of VIR"

	注视点坐标 $(x i, y i)$	注视持续时时间t_i/s
	（-14.521，-44.112）	2.550781
	（-16.374，-50.621）	0.6875
	（13.711，-53.821）	1.28125
	（0.807999，-42.752）	0.71875
	（-4.305，-50.556）	0.71875
	（-0.45599，-39.432）	1.832031
	（11.428，13.077）	8.542969
	（-12.49，14.297）	1.566406
	（-7.667，3.690002）	1.488281

Table 3

Fig.8

Fig.9

Fig.10

Table 4

Table 5

References 12

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编号	性别	年龄	驾龄	学历	视力情况
01	男	35	8	本科	良好
02	女	28	2	本科	良好
03	男	42	20	初中	良好
04	男	40	15	本科	良好
05	女	35	6	博士	良好
06	男	30	5	硕士	良好

基本参数	编号
基本参数	01	02	03	04
试验路段	国道110	京藏高速	定武高速	青银高速
设计车速/(km·h^-1)	80	120	120	120
直线段指标区间(L_min,L_max)/m	(28,3 154)	(797,3 069)	(633,4 700)	(755,4 950)
坡度曲线(i_min,i_max)/%	(0.00,3.72)	(0.00,4.30)	(0.00,3.00)	(0.00,4.00)

		设计车速/（km?h^-1）
		40	60	80	100	120
视觉搜索曲线间最短直线段长度/m		67	100	133	167	200
中国	反向曲线2v	80	120	160	200	240
中国	同向曲线6v	240	360	480	600	720
西班牙	反向曲线1.39v	56	83	111	139	167
日本	同（反向）曲线	67	100	133	167	200

	设计车速/（km?h^-1）
	40	60	80	100	120
基于视觉搜索理想最大直线长度/m	600	1000	1300	1600	2000
基于视觉搜索极限最大直线长度/m	1500	2300	3100	3800	4700
美国/m	4830	4830	4830	4830	4830
德国(日本)/m	800	1200	1600	2000	2400

Optimization of straight segment index between highway curves of desert grassland based on driver’s visual interest region

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