L'Enfant Plaza will be the main way residents and visitors access the improvements to Southwest. The three current entrances, however, are located too far north to be truly useful to access the best of SW and the closest of the three is closed on weekends. Adding a fourth entrance under the south awning of the HUD building would be ideal. A platform over the Yellow/Green line tracks on the south side of the station and connections to the surface from said platform already exist. Adding the additional entrance would therefore be unusually simple and inexpensive and would not even require a weather awning as the HUD building overhang is more than sufficient. An alternative location would be across 7th St. The corner of Constitution Center provides more than enough space for a Metro entrance but would most likely require a weather awning.