APOLLOUNION News: Recently, scientific research experts at the University of Washington have successfully developed a method that can use Bluetooth and WiFi signals to monitor smart phones to collect data on public transportation.new type of sensor. That is, when everyone has a mobile phone, when passengers get on and off the bus equipped with the sensor, the sensor will record and display how many people and transportation time are currently on the bus.

When passengers are waiting for the bus at the platform, they can know when the bus they want to take will arrive, and they can also know whether the bus supports them. The bus company can also better arrange the frequency and route, which is a supplement to the current urban traffic information and improves the bus travel.


The sensor is also cheap, costing around $60 to install. The sensor began testing in the University of Washington's transportation system last year.