This framework is used to assess the existing development level of the EWEC and the NSEC. Analysis of the SEC is not included in this research due to a lack of empirical data. The approach is based on a segmented perspective where each individual leg/section in each country is identified and assessed. The following assessment of the EWEC and the NSEC is presented in Tables 2 and 3. The NSEC assessment is based on the main route that links Bangkok in Thailand to Kunming via Lao PDR or Myanmar. This particular economic corridor is sometimes referred to as Route No. 3. The economic corridor via Myanmar is referred to as Route No. 3W, and the one via Lao PDR is known as Route No. 3E. There also exists a Mekong river connection between Chiengsaen port in Thailand and Jinghong port in China.