This study experiments a method for estimating and mapping the alerting potential of two Location-Based Alerting Solutions (LBAS): messaging techniques (cell broadcast, CBC, or location-based SMS, LB-SMS) and the smartphone push notification. Experiments have been evaluated over metropolitan France, a heterogeneously populated and risky area, considering that individuals are located at home. The rate of alertable individuals, calculated at the municipal level, show very strong potential of CBC/LB-SMS. 94.21% of individuals can be alertable using CBC/LB-SMS and 74.15% using the smartphone push notification. There is a very strong homogeneity in the performance of LBAS at the national level, but also local weaknesses exist. Mapping this potential of performance contributes to the discussion about the use of LBAS in France and paves the way for a broader assessment of the effectiveness of alerting solutions in order to propose a multi-channel system that will consider the territorial characteristics.

这项研究实验了一种估计和映射两种基于位置的警报解决方案（LBAS）的潜在警报的方法：消息传递技术（小区广播，CBC或基于位置的SMS，LB-SMS）和智能手机推送通知。考虑到个人位于家里，在大都市法国（一个人口众多且危险的地区）进行了实验评估。在市一级计算得出的个人警觉率显示出非常强大的CBC / LB-SMS潜力。使用CBC / LB-SMS可以警惕94.21％的人，使用智能手机推送通知可以警惕74.15％的人。在国家层面，LBAS的表现具有非常强的同质性，但也存在局部缺陷。