In some urban areas, there are special days, known as car-free days, where public transportation is the only means of transport allowed into the centre of town. Privately owned cars, heavy-duty trucks and motorbikes are prohibited from the town centre. While this development has some merits such as reducing air pollution and congestion, it can have demerits such as increased inconvenience in getting from one place to another. However, I believe the advantages outweigh the disadvantages.