With the rapid growth of urban areas and commercial cities, and given the present transport infrastructure, urban areas become more and more congested day by day causing much time wasted on trips by both public and private transport users. Therefore, with the above reason three wheelers (commonly known as tuk-tuks, metered taxis, or fare taxis) have emerged as an alternative solution which guarantees a quick and convenient mode of travel in congested city areas; besides it also generates some common problems faced by travellers such as parking, waiting, and total time taken per trip. According to statistical figures given by the Department of Motor Traffic Sri Lanka, it is clear that demand for three wheelers has increased significantly throughout the years 2014 and 2015 at an average rate of 65%. According to the above figures shown in the table it is clear that demand for three wheelers has increased significantly thus representing an increase in demand for three-wheeler transportation. As a result of the above the tax increase by the present government to reduce three-wheeler imports in to the country has thus created an increased demand for existing three wheelers which provides para-transit transport.

De Silva, D.D.W., & Ranwala, L.U. (2017). Determinants of increasing demand for three-wheeler transportation in Colombo [Extended Abstract]. In T.L. Gunaruwan (Ed.), Proceedings of 2nd International Conference on Research for Transport and Logistics Industry 2017 (pp. 123-127). Sri Lanka Society of Transport and Logistics. https://slstl.lk/r4tli-2017/