Two sections in the Frankfurt area are equipped with a special kind of facility to allow a temporary release of the emergency lanes during the rush hour. The section between "Hanau" and "Offenbacher Kreuz" and also the section between "Kelsterbach" and "Mönchhof-Dreieck" have this facility, so that a further lane for each direction can be opened. These sections are monitored by cameras, so that the additional lane can be closed in critical situations, for example in case of a vehicle breakdown.