From Wazeopedia
Real Time Closures (RTCs)

If a road is closed, we can map it using Real Time Closures or Partial Restrictions. A Real Time Closure (RTC) may be used when a segment is completely closed temporarily in one or both directions to all wazers. Examples are closures due to an accident, during an event, or to enable road works. RTCs are visible to the driver and can be removed in real time as well. For roads that have a structural and partial closure, such as during specific times or for specific vehicle types, we use Restrictions. Changes in restrictions need a map update and are not visible to the driver. This page deals with Real Time Closures (RTCs).