And because there is not enough public transport services. Most people use private cars so popular because there is more comfort, but it causes a traffic jam at the same time.
And because there are not enough good public transportation. The most popular is the use of private cars. It is more convenient It caused traffic jams at the same time.
Due to no public transportation is good enough. Most of the people are the most popular use of private cars. Because of its convenience. But it caused a traffic jam up at the same time.