WASHINGTON — Metro is set to launch a Wi-Fi network for riders in six downtown stations this month.

The pilot program follows installation and testing over the course of the spring and summer. Overall, Metro is installing Wi-Fi at all 91 stations by the end of the year for internal engineering and operational use.

Metro said the pilot program will begin this month “once a new website is launched.”

The pilot includes Metro Center, Gallery Place, L’Enfant Plaza, Union Station, Judiciary Square and Archives stations.

Metro is calling this a “lite” pilot due to the limited number of stations included. If it goes well, Metro says Wi-Fi could be offered to riders at other stations in the future.