Schedule changes will currently only be applied to trains traveling away from central Tokyo to the suburbs, with plans to increase the service frequency before the last train on eight lines to prevent congestion. Based on figures from September, around 20,000 passengers are expected to be affected by the schedule changes to last trains on weekdays, the railway operator said. It will also push back first train departures by up to 17 minutes later on five lines. Further details of the plans will be announced in December.