This paper studies the reliability of main regular bus operational, the bus operational reliability models, based on stations and sections are established respectively by introducing the concepts of "headway reliability" and "bus section running time". And the reliability of running time for bus stations and sections is analyzed with the AVL bus data of Wujiang, Suzhou. By quantitatively calculating the reliability value of bus operation with the influence of different factors to analyse the variation rule of the reliability. On this basis, the main regular bus coordination control optimization is conducted, and the impact of intersection signal control means on bus operation reliability is emphatically analyzed. The coordination control optimization model is established, which takes the maximum running reliability value of bus stations and sections as the optimization objective. Typical sections of Wujiang are selected to solve the model, and get the optimal solution. Key words: Regular Bus; Running Time; Reliability Analysis; Signal Coordinated Control

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