Tap Once you've started your journey, you may need to make a detour to reach your destination. 

Find an Alternative Road

Your route may use a particular road that you would prefer to avoid. There are two ways you can do this:

Tap on the map to avoid a road.

Tap the road you wish to avoid, and then tap the blue arrow next to the road description.

Select Avoid This Road.

Avoid a road from the Navigation screen.

Tap the arrow at the bottom of the map to display the navigation screen.

Tap on the road you wish to avoid.

Tap on Yes.