A JR Yamanote Line train is seen in Tokyo's Minato Ward on May 23, 2019.... Including Shibuya Station, the areas to be affected are the Yamanote Line's inner loop route from Ikebukuro Station to Osaki Station, while train services on other parts of the inner loop and those running on the outer loop will also be reduced.... According to JR East, only around 30% of the usual frequency of services will be provided on the inner loop's non-suspended section between Ikebukuro and Osaki stations....