Signal-Vehicle Coordination Control Modeling and Roadside Unit Deployment Evaluation under V2I Communication Environment

Table 6

The influence of different RSU deployment parameters on the control performance.

Parameters	Observation indexes	Impact on the control performance
	, , and	The reduction in vehicle delays displays an upward trend and then a downward trend as the RSU communication distance increases
	and	The reduction in vehicle delays decreases as the RSU command transmission cycle increases
of a single RSU	and	Under low traffic flow, the reduction of vehicle delays decreases as the RSU position moves away from the intersection. Under medium traffic and high traffic flows, the reduction in vehicle delays increases as the RSU position moves away from the intersection
of dual-RSU	, , and	The reduction in vehicle delays increases as the RSU position moves away from the intersection