Apple Maps will (finally) be updated in autumn to include indoor maps of shopping centres and airports, including London Heathrow, so you can avoid looking at the real world and make a beeline for the nearest restaurant or bar. Maps will also tell you which lane you should be in before a turn while driving.
Do Not Disturb whilst driving
iOS 11 can sense when you’re driving, according to the movement and whether you’re connected to a car stereo. In the Do Not Disturb While Driving mode, you won’t receive notifications and if someone messages you they will get an automatic reply saying you can’t talk.