You can get direction using several transportation modes.
Walking only: Provides you with walking directions from point A to B.
Subway only: Provides you with walking directions to get to the subway station, and walking directions to get from the end subway station to your final location.
Bus only: Provides you with walking directions to get to the bus stop, and walking directions to get from the end bus stop to your final location.
Subway + Bus:Hopstop will take into consideration subways and buses in suggesting the best route.
Keep in mind that Hopstop will always select the optimal transportation mode if it is clearly a better choice than than the preferences you selected.
For example, if point A and point B are a few blocks away from each other, Hopstop will suggest you walk even if you selected "Subway only". Similarly, if you select "Subway + Bus" and your locations do not require the use of a bus, a Subway only or Walking only route will be suggested.