The document analyzes the feasibility of establishing a circular railway system in Karachi to address the city's traffic issues. It finds that the railway would be more affordable and efficient than the current bus system. The proposed 87 km railway would cost $910 million to establish but would pay for itself within 2.5 years due to lower operating costs. It would carry over 1 million passengers per day, reducing traffic and improving transportation for Karachi's residents. However, the project faces challenges in securing funds, relocating residents, and changing public transportation habits.