BAI Communications has built a public Wi-Fi offering in both the Toronto and NYC subway systems, where roughly 2 million unique devices totaling 14 million log-ins per month use the service. Using InfluxDB, the company can notify rail operators when platforms reach dangerous levels in near real-time
The team has been using InfluxDB since v0.8 and love the tech. To deliver this solution, they collect metrics from the 1000+ wireless APs in their network and push them into InfluxDB. Passenger flows create various distinct patterns in the Wi-Fi data. Using InfluxDB, the team can tease out patterns and notify appropriate parties when those patterns change.