Sure but private cars aren't generally on the road all the time. They go to their destinations and park. TNC's spend a substantial part of their time between fa

Sure but private cars aren't generally on the road all the time. They go to their destinations and park. TNC's spend a substantial part of their time between fares. If they were displacing all private car trips they would only marginally increase congestion by 1-utlization factor but that's certainly not the case in places where public transport exists.