Reduce traffic congestion on Colombo-Matara Road, and reduce delay costs, fuel costs there by contributing to national economy.
Reduction of Vehicle Operating Cost
Attract private sector investors and there by contributing to expand the job market
Development of fisheries, agriculture, industries in the region.
Expand tourism presently confined to the coastal belt, along Colombo-Galle-Matara.
Development of Galle port.
Development of the towns belong to 11 interchanges as Economic Centers
Enhance the value of land and property in the region
Other Benefits
Environmental Issues - even there are environmental damages during construction, which need to be addressed, air pollution during operation will be much less than other roads due to smooth flow of traffic.
Road Accidents - usually at initial stages of the operation of the expressway, the rate of road accidents could be slightly higher than on a normal road but with the time it reduces to a lower rate than on other roads.