Joining a journey/sending location
I think a good idea would be an option to send somebody your route so that they are able to join it. I say this because my friend and I were driving down to a birthday, and I was following her, however we kept on losing each other and had to keep calling to see where we both were. It would be easier if you could send your location to someone and a route shows you to them, or you can add somebody to a journey you are taking so that you will both be on the same route and not lose each other. I think this is a great idea ! You can only send your route to the designated person, and a route will show up leading you onto the same route as that person until you both reach the destination.