As a taxi driver, nothing is more important than the lives of your passenger, so you need to make sure that there are safe while they are at the backseat. if ever they feel threatened then they would leave leave your cab. The idea of the game is to keep earning money. And you can't do that if the passenger feels that they are not safe in your taxi. You need to ensure their safety or you would earn nothing and would gain a bad reputation. Stop when the red lights drive along until you get to the finish line. You will be paid after every successful trip. The money can be used to upgrade your car.