Intervals between Metro Line 2 trains will be further shortened for the China International Import Expo in November this year, the city's Metro company said on Monday. Currently, the shortest interval between trains on Line 2 is 2 minutes and 40 seconds. This year's import expo will be held again at the National Exhibition and Convention Center, which is near East Xujing Station on Line 2 and Zhuguang Road Station on Line 17.