This idea is an example of a well-written suggestion:
I think turn-by-turn directions with audio cues would be a useful addition to Strava because then I could ride without constantly having to stop to look at my phone. This is important to me because it would save a lot of time and be safer since I wouldn't be as distracted. An exampleof when I needed that was when I was following a new route and riding on a busy road I wasn't familiar with. I couldn't stop to check the route and it made me very nervous.
As stated, this is an example post. If you want to vote on this idea, @Brendan created one that you can vote on here.