Journal of Jilin University(Engineering and Technology Edition) ›› 2025, Vol. 55 ›› Issue (12): 3875-3884.doi: 10.13229/j.cnki.jdxbgxb.20240537

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Combined game theory and driving style hybrid traffic flow lane change decision model

Xin-gang GUO1(),Song WANG1,Chao CHENG1(),Zhen FAN2   

  1. 1.School of Computer Science and Engineering,Changchun University of Technology,Changchun 130012,China
    2.Armored Corps Academy Sub-lieutenant school,Changchun 130033,China
  • Received:2024-05-15 Online:2025-12-01 Published:2026-02-03
  • Contact: Chao CHENG E-mail:6889068@qq.com;125725673@qq.com

Abstract:

To address the issue of inaccuracy of vehicle lane change decision in the mixed traffic flow scenario of HV and AV, a vehicle lane change decision model was proposed. The model is based on game theory, multiple game functions were constructed for the continuous cooperative lane change situation of adjacent vehicles, the influence of communication uncertainty was eliminated by Harsanyi transform, and the driving style of vehicles was distinguished by K-means++ clustering, the game returns were further adjusted by risk factors. The lane change model was verified by using the SUMO simulation platform. The experimental results showed that under the fixed AV permeability, the average passing number of vehicles is effectively increased and the average passing time is reduced by applying the combined game theory and driving style lane change model, at the same time, no accidents occurred in the test, which proves the stability and safety of the lane change model. Under different AV permeability, the average passing time of vehicles decreases significantly with the increase of permeability, which indicates that the AV can effectively utilize the lane.

Key words: game theory, Harsanyi transform, driving style, K-means++ clustering, lane change decision

CLC Number: 

  • U491

Fig.1

Lane change decision model"

Fig.2

Typical lane change scenario"

Fig.3

Harsanyi transformation"

Table 1

Payoff matrix of main car game"

后随车D策略主车A概率
等待变道

加速

减速

变道

不变

αP110+βQ110+τ11

αP110+βQ110+τ11

αP110+βQ110+τ11

αP110+βQ110+τ11

αP211+βQ211+αUV+UC+τ21

αP211+βQ221+αUV+UC+τ22

αP211+αUV+UC+τ23

αP211+βQ241+αUV+UC+τ24

n1

n2

n3

1-n1-n2-n3

概率m1-m

Table 2

Payoff matrix of the following car game"

后随车D策略主车A概率
等待变道

加速

减速

变道

不变

αP311+βQ311+UC+τ31

αP320+βQ320+UC+τ32

rΓ

αP340+βQ341+τ34

αP411+βQ311+αUV+UC+τ41

αP420+βQ320+αUV+UC+τ42

rΓ

αP440+βQ341+αUV+τ44

n1

n2

n3

1-n1-n2-n3

概率m1-m

Table 3

Payoff matrix of repeated games"

J车策略J车收益D车收益

加速

减速

变道

不变

αP511+βQ511+αUV+UC+τ51

αP510+βQ520+αUV+UC+τ52

rΩ

αP540+βQ541+αUV+τ54

αP611+βQ611+αUV+UC+τ61

αP611+βQ621+αUV+UC+τ62

αP611+αUV+UC+τ63

αP611+βQ641+αUV+UC+τ64

Table 4

Principal component eigenvalue and contribution rate"

成分特征值贡献率/%累计贡献率/%
13.78824.530 224.530 2
22.69817.468 341.998 5
32.42515.702 657.701 1
42.00712.992 970.694 0
51.56110.105 380.799 3
61.2398.023 888.823 1
70.5443.525 692.348 7
80.4442.876 595.225 2
90.2941.902 497.127 6
100.1681.090 198.217 7
110.0920.567 498.785 1
120.0640.415 799.200 8
130.0590.386 399.587 1
140.0340.213 699.800 7
150.0120.089 699.890 3
160.0110.073 299.963 5
170.0050.036 5100.000 0

Table 5

K-means++ clustering results"

聚类类别样本数量聚类中心
F1F2F3F4F5F6

1

2

3

4

16 984

19 673

9 405

5 304

0.303

-0.842

1.994

2.786

-0.381

0.523

1.264

2.388

-0.156

0.649

-1.002

0.951

0.073

-1.304

0.857

-1.516

0.059

-0.215

0.882

1.113

0.021

-0.035

-0.076

0.108

Fig.4

Different time window classification"

Table 6

Experimental correlation parameter"

参数数值
车辆长度/m4.2
最高速度/(m·s-130
最大加速度/(m·s-23.3
最大减速度/(m·s-24.2

Fig.5

Simulation scene"

Fig.6

Comparison under different vehicle densities"

Table 7

(jam, accident) frequency"

车辆密度/(veh·h-1A组B组C组D组
1 000(0,0)(0,0)(0,0)(0,0)
1 500(0,0)(0,0)(0,0)(0,0)
2 000(1,0)(0,0)(1,0)(0,0)
2 500(1,1)(1,0)(1,1)(0,0)
3 000(2,1)(2,1)(2,1)(0,0)
3 500(2,2)(2,1)(3,2)(0,0)
4 000(3,2)(2,2)(4,4)(0,0)
4 500(3,2)(2,2)(6,5)(1,0)

Table 8

Comparison of experimental data"

实验组平均通过时间/s通过数量/辆
1(96.78,90.35,82.56)(51,54,60)
2(102.54,98.72,90.21)(67,72,90)
3(112.43,102.57,97.35)(89,96,108)
4(139.56,128.33,120.49)(111,126,135)
5(151.28,141.71,129.65)(134,153,165)
6(176.12,173.49,156.53)(157,177,196)
7(191.53,180.52,170.02)(193,214,232)
8(212.36,203.66,181.18)(221,223,241)

Fig.7

Average passage time under different AV permeability"

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