Adaptive Optimization of Traffic Signal Timing via Deep Reinforcement Learning

Table 2

Traffic light four-phase control scheme.

Phase sequence	Traffic flow direction	Duration (s)
0	NS-straight	32
1		3
2	NE-left; SW-left	16
3		3
4	EW-straight	32
5		3
6	ES-left; WN-left	16
7		3