提出一种新的动态交通信息服务方式,该方式以订阅-通知模式建立动态交通信息对导航电子地图路网要素属性的影响框架,当动态信息数据源的状态改变时,相应的导航电子地图路网要素能实时准确地调整属性以响应动态信息的变化,充分体现动态交通信息的时效性,从而为用户提供不同需求的动态交通信息服务。最后以路径规划服务为例,验证订阅-通知模式的动态交通信息服务方式的有效性和实用性。 This paper proposes a new dynamic traffic information service mode, which establishes the framework of the influence of dynamic traffic information on navigation electronic map road network element attributes by subscription-notification mode. When the status of dynamic information data source changes, the corresponding navigation electronic map road Web elements can real-time and accurately adjust the attributes in response to changes in dynamic information to fully reflect the timeliness of dynamic traffic information, so as to provide users with different needs of dynamic traffic information services. Finally, take the path planning service as an example, validates the validity and practicability of the dynamic traffic information service mode of subscription-notification mode.