This is a gray gear icon that will be found on your Home Screen.;
, You will find it about halfway down the screen.
 It's under the Preferred Transport Type heading and a blue checkmark will appear beside it. You will now get directions providing the quickest route for traveling by foot. Your estimated trip time will also be based on the time it takes to walk to your destination.
Open your iPhone’s Settings.
Scroll down and tap Maps.
Tap Walking.
{"src": "wikihow-all_validation", "title": "How to Set iPhone Maps to Automatically Give Walking Directions"}