Tokyo, Japan Environmentalism

In a Time magazine I recently read there was an article on Tokyo stopping all cars and taxis for one day a week. And the people are forced to use the subways and buses. And they are trying to stop taxi drivers from taking one passenger at a time. They want to make a taxi wait for at least three people. But in doing so, taxi drivers lose money because the passengers each have to pay a third of the money, whereas the taxi drivers could have made more money by taking the passengers three separate times.