The Quantico VRE shuttle services uses both buses and vans to transport employees aboard Quantico to and from the train station. The Quantico VRE shuttle service starts running at 5:20 a.m. and the last ride to the train depot is at 6:17 p.m. - The Quantico VRE shuttle services uses both buses and vans to transport employees aboard Quantico to and from the train station. The Quantico VRE shuttle service starts running at 5:20 a.m. and the last ride to the train depot is at 6:17 p.m.