Can I request either the active/current or the next Schedule?

Yes, it’s possible to request the current or next schedule and its even possible to request schedules within a time interval.

Definitions of current, next and time interval are defined below.

• CURRENT: When using this option only active schedules will be displayed, which means that the given origin event has to be in the past i.e. “ACT” and the given destination must be in the future, i.e. “EST”
  
• NEXT: If this option is used both the given origin and destination events has to be in the future, i.e. “EST”. So only schedules which are going to happen will be returned here.
  
• TIMEINTERVAL: for time interval a begin date and end date are needed and then only schedules within that timeframe will be shown.