"On My Waze" - provide an option for a traveller to notify recipients(loved ones - clients - etc) where they are on their way home for the night or to an appointment.

Michelle (16, young driver) sets option to notify her parents when passing major landmarks on her way home late after sports practice.

Notifications reach her parents periodically:
"Taking highway 385 at exit 27."
"Got off 385 at exit 25."
"Stopped at Sharon's house." (drops her off after practice usually)
"Passing corner market on Fairview Rd"

Clark (20, College student) - allows him to set notifications to be sent to mother when travelling home for holidays. He sets it a little less verbose than Michelle to notify when leaving major metro areas, but gets more precise as he gets closer to the destination.

Mindy (NA - Caterer) Sets notifications to be sent to the Maid of Honor for her client to let her know things are moving along and keep the bride calm.

The gist is an interface/framework to allow passive communication of progress on a voluntary basis. Thereby, keeping parents and concerned parties informed without hazardous texting while driving or the hassle of trying to update multiple recipients continuously responding to the cliché, "how far have you gotten?"