A car-free zone is an area where people are not allowed to drive cars. This can mean that cars can't go into the area at all, or it might only mean that cars are allowed in for a short time, like to pick up and drop off people. Cars are often replaced with bikes, scooters, or even walking, so it's a great way to get around without using a car. This can be really helpful for people who don't have cars, or just don't want to use them. It also helps protect the environment by reducing the pollution that cars make.