How to Plan an Alternate Route With Google Maps
These instructions apply to both the desktop and mobile versions of Google Maps. Drag that point to a new location to change the route. When you do this, other suggested alternate routes disappear from the map, and the driving directions change. Monitor these changes as you make an alternative route and adjust your plan accordingly. The path it gives is a legitimate way to get to the destination. After you complete your alternate route, it locks in....