联系供应商发货、或者使用备货更换
未损坏、联系设备运维部，安排维修
Develop a wide range of appropriate metrics
子公司车管
Make flyers
How to intervene
Three intervention strategies were proposed
Two regions were randomly selected to measure their optimal intervention strategy
客服人员
Measure the risk level of light pollution in four regions
Concrete actions
Measurement results
Assign weights to each metric
子公司安全
