This could be used to get instant check on vehicle speeds.
Which could be used by traffic police for lodging fines to the driver for over-speed driving offence.
Hello,
I can think about many ways of doing this.
You can use some devices and apps like Automatic
Also, some insurances may put a black box in your car to check speed but also braking and all to make you pay based on what THEY think is good driving.
Finally, with an Android phone, you could make an app using the GPS to send the speed to things like a spreadsheet. There even might be a recipe for that on IFTTT.