Apparently taxis can be dangerous for ladies at night in Seoul. So there is a program called the Safe Return Home Service now in Seoul.
How does it work? The assumption is that many people have NFC enabled phones. They just need to tap their phone on this NFC-enabled pad, and automatically a text message is sent to one’s guardian giving the taxi’s model, current time & location, and probably more.
This ensures that you now travel with a better sense of security. Read the press release, which suggests this is a program from SK Planet (I’ve had the pleasure of working with this group in the past).
I think something like this can be really useful in markets like Malaysia, where the taxi system requires a serious overhaul.