Réseau Montparnasse is the set of lines originating from Gare Montparnasse, Paris. Both suburban and intercity services are provided; all services are operated by the SNCF. Regional services are operated under the Transilien brand name, intercity services by Corail and high speed trains by TGV. There are three lines on this sector.
Chartres Line
This line according to SNCF will get from start to terminus in 1hr15mins, and operates as per this route: