Using the methods of literature research, theoretical research and case analysis, this paper aimed to solve the problems of the application of law, the judgment standard of performing the management obligation and the responsibility sharing in the form of several people's infringement of public road managers' tort liability in the disputes caused by obstructing the passage. As for the application of law, in view of the special public road managers such as expressway operators, the "corresponding liability" in article 1256 of the Civil Code was applied to their tort liability, not the "supplementary liability of safety guarantee obligation" in article 1198 of the Civil Code. To judge whether the public road managers have fulfilled the legal management obligations, it should be considered from two perspectives: non-toll road and toll road. The managers of non-toll roads should do their general duty of care, and the managers of toll roads should do their good duty of care. "Corresponding responsibility" should be divided into bearing "supplementary responsibility" or "share responsibility" according to different situations.