This is the root element for configuration of the traffic light system. This type specifies a plan for a signal system. The time of day at which the plan should be activated, set start and stop to 00:00:00 if the plan shall be always active or simply remove start and stop element completely At which time of day to stop using this plan, set start and stop to 00:00:00 if the plan shall be always active or simply remove start and stop element completely The time in seconds needed to process this plan. The second of the circulation time which is used for synchronization. This element contains information when to switch on or off a signal group. The second of circulation when the signal switches to green. The second of circulation when the signal switches to red.