There are so many more people in Colombo or coming to Colombo for work today than ever before. Expansion projects like the Thibirigasaya road widening is good. But most roads in Sri Lanka are small. I guess when the city was first laid out, there were only a few cars and the planners probably never envisioned how the future would be. Regardless, more people with more cars has made it a hassle to travel around Colombo.
With all the post-war development going on, I think it would be great if we could implement a Subway system. To start out with, it could link the main points in Colombo and the surrounding area. Imagine how convenient it would be to get from Talawatugoda to Colombo each morning. It would also save the environment by reducing the carbon dioxide emissions, etc.
As a stage two project, they could add a track from Moratuwa/Panadura into Colombo. I just can't imagine how cool and useful such a system would be. We would be more productive. Spend less time traveling so we have more time to do other things - spend time with family, work on a new project, etc. We would also be much happier. Stop and go driving is tiring. With all the crazy driving, especially by the 3 wheel drivers, most people are fuming behind the wheel. We could get rid of all these unpleasant experiences... As more people resolve to using the subway, the traffic on the road would also subside.