Recently cabinet given approval for a highway from Kottawata to Colombo. This is to carry the load from southern corner to City central. But is this the ideal way.
There is a another highway from Panadura to Kollupitiya (Extending Marian drive). This road running parallel to and close to the rail way. Government can acquire land cheaply or can claim from sea.
Best thing to carry the load to city capital is plug the Highway from Waskaduwa to between Pandura and Moratuwa.
There is a rail way. Also new highway.
On the other hand if another highway is build from Kottawa , cost to acquire land will be high. But why they care about money. It is people's money.