Signal control method and system

The invention discloses a signal control method and system. The signal control method comprises the following steps: acquiring current local traffic characteristic information of a current traffic node; obtaining a current global signal control strategy; the global signal control strategy comprises a predicted signal control strategy for the traffic signal indicating device according to local traffic characteristic information corresponding to a plurality of traffic nodes at present; the plurality of traffic nodes comprise the current traffic node; and according to the global signal control strategy and the current local traffic characteristic information of the current traffic node, determining a local signal control strategy for a traffic signal indicating device of the current traffic node, so as to perform signal control on the traffic signal indicating device of the current traffic node based on the local signal control strategy. 本申请公开一种信号控制方法和系统，其中信号控制方法包括：获得当前交通节点当前的局部交通特征信息；获得当前的全局信号控制策略；所述全局信号控制策略包括：