When asking Siri for directions, follow it up with the words "via transit" and you'll be able to use a 2nd party navigation app like google maps or navigon. I've tried it and can confirm it works! Nice Easter Egg!
When asking Siri for directions, follow it up with the words "via transit" and you'll be able to use a 2nd party navigation app like google maps or navigon. I've tried it and can confirm it works! Nice Easter Egg!
I don't have subways or rails, either. Adding "via transit" is just a way to get Siri to give you an option to open the alternate maps apps that you have installed on 5.1 and higher (see the first two apps in my screenshot).