The traditional coordinated control of arterial road only considers the green band width of the main road traffic, but the arterial road traffic in the green band will exist when the driving distance is too long, which brings a series of safety and efficiency problems. Based on the trajectory data, this paper solves the basic signal control scheme with the objective of delay minimization, and on the basis of this scheme, the concept of traffic storage area is introduced. According to the characteristics of the traffic dispersion phenomenon, three constraints of speed, normalized speed dispersion coefficient, and intersection importance are set to set up the storage area in the arterial road, and the signal updating scheme based on this storage area and the subsequent intersection signal updating scheme are proposed. SUMO software is utilized to build a simulation platform, and six consecutive intersections on Hong Kong Road in Jiaozhou City are used as cases for simulation experiments. The experimental results show that, compared with the algorithmic solution of the basic scheme, the inclusion of the storage area will improve the intersection delay to a certain extent, but can greatly reduce the dispersion of the arterial traffic flow and improve the intersection efficiency.