Route 4 (see Table V). This route is via Lad Krabang which is an Inland Clearance Depot (ICD) located in the outskirts of Bangkok with a direct rail link to Laem Chabang. An ICD is sometime referred to as a ``dry port’’. According to Beresford and Dubey (1990) ``dry ports’’ are specific sites to which imports and exports can be consigned for