基于随机森林的智能网联汽车开放测试道路评级算法

doi:10.13229/j.cnki.jdxbgxb.20250544

Abstract

Abstract:

To investigate the effectiveness of open roads in the ICV driving safety test， a rating algorithm for open road in ICV test according to the theory of random forest was proposed. A rating index system for open testing roads of intelligent connected vehicles was constructed from five aspects： road complexity， safety assurance， scene diversity， facility comprehensiveness， and scene typicality. Then a random forest model for the rating of open road is built and calibrated with the data of the existing open roads in ICV test. The rating algorithm is then applied in rating of open roads in Changchun City， the results of which demonstrates the feasibility and effectiveness of the model. The results indicate that the proposed intelligent connected vehicle（ICV） open test road rating algorithm can accurately perform road rating， providing model support for the selection， planning， and construction of open test roads for ICV.

Key words: transportation planning and management, intelligent connected vehicle （ICV）, open test, road rating, random forest

CLC Number:

U491.1

Dong WANG,Yu-xuan LI,Huan WU,Fang ZONG. Rating algorithm for open test road of intelligent connected vehicle based on random forest[J].Journal of Jilin University(Engineering and Technology Edition), 2025, 55(9): 2998-3006.

Figures/Tables 7

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评价方面	评价内容	具体指标	评价方面	评价内容	具体指标
测试道路复杂性	路网形态	X₁方格式	相关设施全面性	道路交通管理设施	X₃₁限速标志
		X₂放射式			X₃₂停车让行标志标线
		X₃环形放射式			X₃₃车道线
		X₄自由式			X₃₄人行横道线
	道路等级	X₅快速路			X₃₅中央隔离带
		X₆主干路			X₃₆机非分离设施
		X₇次干路			X₃₇可变车道
		X₈支路			X₃₈减速带
	车道数	X₉含有单向双车道道路		道路交通设施	X₃₉公交专用道
		X₁₀含有单向三车道道路			X₄₀路边式公交站
		X₁₁含有单向四车道及以上道路			X₄₁港湾式公交站
		X₁₂道路变窄			X₄₂路侧停车设施
	交叉口类型	X₁₃十字交叉口			X₄₃左弯待转区
		X₁₄丁字交叉口			X₄₄照明设施
		X₁₅异形交叉口		路侧设施智能化水平	X₄₅ R₁（基础信息化） X₄₆ R₂（部分协同）
		X₁₆环形交叉口		路侧设施智能化水平	X₄₇ R₃（有条件协同） X₄₈ R₄（高度协同）
测试场景多样性	路段类型	X₁₇直路	交通安全保障性	交通事故率/（起·年^-1）	X₄₉简易交通事故率≤50
		X₁₈坡路			X₅₀一般交通事故率≤10
		X₁₉弯路			X₅₁重大交通事故率≤1
	交叉口组织方式	X₂₀机动车信号灯交叉口		居住密度	X₅₂中低居住密度
		X₂₁方向指示信号灯交叉口		居住密度	X₅₃中高居住密度
		X₂₂无信号灯交叉口		路段饱和度（高峰时段）	X₅₄路段饱和度≤0.6
	障碍物	X₂₃路墩、井盖、车阻石等			X₅₅ 0.6<路段饱和度≤0.75
	特殊场景	X₂₄学校区域			X₅₆ 0.75<路段饱和度≤0.9
		X₂₅隧道	交通场景典型性	路段饱和度（全时段）	X₅₇ 0.75≤部分路段饱和度≤1
		X₂₆桥下道路		路段饱和度（全时段）	X₅₈部分路段饱和度＞1
		X₂₇林荫路		混行交通	X₅₉机非混行道路
		X₂₈互通式立交
		X₂₉转弯盲区
		X₃₀无中央隔离带

城市	测试开放道路总里程/km	分布区域	测试开放道路环境	交通概况
北京	2 238.43	大兴、海淀、房山、顺义、亦庄等7个区	以双向四车道为主	交通流量较小
上海	2 008	嘉定、临港、奉贤和金桥、浦东新区等区域	测试道路几何线形较好	交通流量小
深圳	144.69	福田、南山、盐田、宝安等9个区	测试道路以非交通性主、次干路为主	交通流量较小交通状况良好
武汉	3 378.73	遍布武汉市12个行政区	测试场景多样，路况全面	交通流量小
杭州	115	余杭区、临平区、富阳区	测试场景多样，路况全面	交通量小交通状况良好
广州	1 980	南沙、黄埔、花都等6个行政区	测试场景丰富	社会车辆较少

路测等级	随机森林算法	Logit算法
R₁	98.84	84.34
R₂	89.00	76.42
R₃	90.94	64.55
R₄	88.57	66.78
R₅	87.15	47.00

序号	地点		信号灯	交通摄像头	交叉口类型
1	绿柳路	聚业大街	布设	布设	十字路口
2	青桐路		未布设	未布设	丁字路口
3	蓝桉路		未布设	布设	丁字路口
4	紫杉路		未布设	未布设	丁字路口
5	银杏路		布设	布设	异形路口
6	金桔路		未布设	未布设	Y形路口
7	福业广场		未布设	未布设	环岛
8	福祉大路	郁金香街	未布设	未布设	丁字路口
9		樱花街	布设	布设	十字路口
10		擎天树街	布设	布设	十字路口
11		槐荫路	未布设	布设	十字路口
12		新城大街	未布设	未布设	—
13	紫杉路	欧李街	未布设	未布设	十字路口
14	夏荷路	欧李街	未布设	未布设	丁字路口
15	枫叶路	欧李街	未布设	未布设	丁字路口
16	百合街	欧李街	未布设	未布设	十字路口
17	百合街	红梅街	未布设	未布设	十字路口
18	长春大学旅游学院长春市实验中学长春市机械工业学校		未布设	未布设	环岛
19			未布设	未布设	—
20			未布设	未布设	—

Rating algorithm for open test road of intelligent connected vehicle based on random forest

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