When you just in your car before the start of your trip, and you park/stand really near to an intersection or even just in a two side road.
After you choose your destination wazw show you your location with big zoom in and ask you to choose the way you heading in the start of your drive, depand on your parking place and the front of your vehicle. Another idea is to set a location and time in the day you want to be there and waze with history information about the road and the traffic and with the online information he got waze will tell you when you need to get on your way to be there in time.

Thank you and hope these are goodand applicable ideas