As a result from the low investment, the provision of railway system infrastructure and facilities becomes rather limited, while the demand of service lines has been increasing annually during the past ten years. Such demand has become apparent in the transport of containers and bulky products such as cement and mineral and petroleum products. For instance, the increasing demand on container transport from Lad Krabang Inland Container Depot (ICD-Lad Krabang) to Laem Chabang
(LCB) in currently limited by the rolling stock number and service track capacity.