Simulation Study on Adaptive Signal Control of Deformed Intersection Based on LSTM-GNN

doi:10.16182/j.issn1004731x.joss.24-1246

Abstract

Abstract:

Aiming at the traffic congestion at deformed intersections, an improved adaptive traffic signal control scheme based on deep learning is designed, the scheme integrates the adaptive signal control of LSTM and GNN at deformed intersections. LSTM is used to capture the dependence between time series traffic data, while GNN is used to construct a spatial interaction model between lanes. By integrating the information of time and space dimensions, the model can dynamically adjust the phase duration of signal lights according to real-time traffic conditions. The results indicate that the LSTM-GNN adaptive control scheme improves overall traffic throughput efficiency by approximately 17.3% compared to traditional fixed-signal control.

Key words: deep learning, LSTM, GNN, traffic signal control, deformed intersection, adaptive control, traffic flow optimization, time-space dependence

CLC Number:

TP391

Chen Kun, Chen Liang, Xie Jiming, Liu Fengbo, Chen Taixiong, Wei Lukuan. Simulation Study on Adaptive Signal Control of Deformed Intersection Based on LSTM-GNN[J]. Journal of System Simulation, 2025, 37(6): 1343-1351.

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车辆位置	车道方向	车道编号	相位
由西南向东北由东北向西南	右转	-E8_0	1、2
由西南向东北由东北向西南	右转	E7_0
由西南向东北由东北向西南	直行	-E8_1
由西南向东北由东北向西南	直行	E7_1
由西南向东北由东北向西南	左转	-E8_2	3、4
由西南向东北由东北向西南	左转	E7_2	3、4
全部车道(全红时间)			5
由西向东由东向西	右转	E3_0	6、7
由西向东由东向西	右转	-E4_0
由西向东由东向西	直行	E3_1
由西向东由东向西	直行	-E4_1
由西向东由东向西	左转	E3_2	8、9
由西向东由东向西	左转	-E4_2	8、9
全部车道(全红时间)			10
由西北向东南由东南向西北	右转	E5_0	11、12
由西北向东南由东南向西北	右转	–E6_0
由西北向东南由东南向西北	直行	E5_1
由西北向东南由东南向西北	直行	–E6_1
由西北向东南由东南向西北	左转	E5_2	13、14
由西北向东南由东南向西北	左转	–E6_2	13、14
全部车道(全红时间)			15

相位	对应车道	t/s
1	E7_0, E7_1, -E8_0, -E8_1	20
2(黄灯时间)	E7_0, E7_1, -E8_0, -E8_1	3
3	E7_2, -E8_2	12
4(黄灯时间)	E7_2, -E8_2	3
5(全红时间)	所有车道	2
6	E3_0, E3_1, -E4_0,-E4_1	20
7(黄灯时间)	E3_0, E3_1, -E4_0,-E4_1	3
8	-E8_2, E7_2	12
9(黄灯时间)	-E8_2, E7_2	3
10(全红时间)	所有车道	2
11	E5_0, E5_1, -E6_0, -E6_0	20
12(黄灯时间)	E5_0, E5_1, -E6_0, -E6_0	3
13	E5_2, -E6_2	12
14(黄灯时间)	E5_2, -E6_2	3
15(全红时间)	所有车道	2

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