Reducing traffic jam?

It is true that traffic jam is one of the most burning issues in our country, especially in Dhaka city. People think there are several causes behind this. What are the main causes? Some are blaming the private cars, and others are blaming the rickshaws. They think if one of the transports, especially rickshaw, is banned, then traffic jam will be reduced.
Accordingly, plying of rickshaws has been banned at many connecting points of Uttara. Of such connecting roads, one is Alaul Avenue or House Building Road and another is Kazi Jashimuddin Road. A baton wielding police officer stands on the road and stops all the rickshaws. May I kindly ask, is Dhaka slowly becoming a city for car owners only? Because it's allowed on all roads.
This action has caused problem to old people, school going kids, patients and women.
The uncontrolled growth of rickshaws has resulted in traffic jam, because the government has totally failed to tackle the growth in time with an effective plan to encounter it.
In this connection, an example can be cited- Mrs. Rumana Parvin, a resident of Jurain in Jatra Bari, works in a real estate company at Uttara. She used to commute by bus and then rickshaw to reach her destination. It's quite difficult for her to come to the office across the long distance. It's horrible now when she reaches Uttara, she doesn't get any rickshaw.
What will happen to the scores of people like Mrs. Rumana Parvin or others who have no transport of their own?
The authorities should address the issue in right earnest.