If you choose public transports as the way to navigation, then Google provide many options, such as less walking, fewer transfers. To change route options on Google Maps Android, do as follows:
1. Open the updated version of Google Maps
2. Specify the Destination point and then tap Route
3. Choose starting point and tap Public transport as the way of navigation
4. Tap Depart at ... to customize the date & time of departure or arrival
5. Tap Options to specify tor your preferred mode Any transport mode, bus, underground, train, tram/light rail
6. Scroll down and select your preferred route: Best route, fewer transfers, less walking
See Also:
How to Enable Street View in Google Maps Android
How to Zoom In on Google Maps for Android
How to Use Google Maps Offline on Android