Autonomy and ride sharing is the only answer to this problem. Most people who live a dense European town are not driving long distances every day. SO the should

Autonomy and ride sharing is the only answer to this problem. Most people who live a dense European town are not driving long distances every day. SO the should just rent a car on the days they need one or take an autonomous or non-autonomous taxi. Those cars do not need to be parked on those specific streets at night.