The expansion of the Chennai Metro Rail network aims to:

The correct answer is: d) All of the above.

The expansion of the Chennai Metro Rail network aims to reduce traffic congestion, connect suburbs to the city center, and improve accessibility to educational institutions.

• Reducing traffic congestion is one of the main goals of the Chennai Metro Rail project. The metro rail is expected to reduce the number of cars on the road, which will ease traffic congestion and improve air quality.
• Connecting suburbs to the city center is another important goal of the Chennai Metro Rail project. The metro rail will provide a fast and efficient way for people to travel from the suburbs to the city center, which will reduce travel time and improve connectivity.
• Improving accessibility to educational institutions is also a goal of the Chennai Metro Rail project. The metro rail will provide a convenient way for students to travel to and from school, which will improve access to education and reduce traffic congestion around schools.

The Chennai Metro Rail project is a major infrastructure project that is expected to have a significant impact on the city of Chennai. The metro rail is expected to reduce traffic congestion, connect suburbs to the city center, and improve accessibility to educational institutions.