one proposal consists of expanding line 10 from "boulogne – pont de saint-cloud" to the train station "gare de saint-cloud", via an intermediate station at "parc de saint-cloud". such an expansion would total about in total. line 10 would then have a connection with the tramway t2 at "parc de saint-cloud" and with the transilien network of "paris-st-lazare" at the train station "gare de saint-cloud".