I thought about something like this as well. Maybe it can suggest new routes so you can know new streets. It could work by vibration (1 vibration right, 2 left)

I thought about something like this as well. Maybe it can suggest new routes so you can know new streets. It could work by vibration (1 vibration right, 2 left) like some running apps do so you don't even have to look at your phone and can focus on what is in front of you.