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在现有的核心RBAC模型的基础上,结合城市交通信息系统的开放性和动态稳定性特点,针对其参与使用系统的部门众多、人员角色复杂多样以及权限划分详细而导致的系统中权限分配的工作量增大和操作不便的问题,提出了Agent-RBAC访问控制模型。将路网拥挤缓解策略与Agent的权限管理相结合,提高了授权的灵活性,为出行者以及城市交通系统管理部门之间实现及时高效的信息沟通提供安全稳定访问,根据一般安全系统具备的特征对角色进行了分类,对各个子类定义了通用的角色约束机制,以避免冲突,有效地解决了交通管理中并行部门众多,管理职能重复而导致传统授权管理僵化的问题,在一定程度上有助于控制拥挤漂移现象,拓宽了城市交通路网控制的技术内涵。
Based on the existing core RBAC model, combined with the characteristics of openness and dynamic stability of urban traffic information system, aiming at the distribution of authority in the system caused by many departments involved in using the system, complicated and diversified roles of personnel, Workload increase and inconvenient operation, put forward Agent-RBAC access control model. By combining the network congestion mitigation strategy with the agent’s authority management, the flexibility of authorization is enhanced, providing secure and stable access for timely and efficient information communication between passengers and the urban traffic system management department. According to the characteristics of the general safety system Classifies the roles and defines a common role constraint mechanism for each subclass to avoid conflicts and effectively solve the problem of numerous parallel departments in traffic management and the repetitive management functions that lead to the rigidification of traditional authorization management. To some extent, It helps to control the phenomenon of crowded drift and broaden the technical connotation of urban traffic network control.