The incident caused delays during Tuesday's rush hour.
The company is promising a 15-minute pickup for customers in wheelchairs or motorized scooters at the cost of an UberX ride.
Traffic is picking up as people get an early start on the Thanksgiving holiday.
The closure started about 1:30 p.m. because of a person threatening to commit suicide, authorities said.
NTSB officials defended the more than 2-year-old inquiry, citing staffing issues and saying thorough investigations take time.
With a surge of travelers this year, choke points abound. Traffic snarls will double — or quadruple — travel times on some road trips. The rush to meet Thursday’s dinner deadline is officially on.
The planned train system would take passengers from Washington to Baltimore in 15 minutes.
Beginning the Monday after Thanksgiving, service will shut down for 14 days.
The holidays mark peak travel season, and to accommodate more passengers on planes, airlines are making their bathrooms the smallest they’ve ever been.
The incident affected the Blue, Silver and Orange lines.
Dozens of crashes occurred in the region one day after the season’s first snowfall.
Drivers should slow down and allow extra travel time as roads are slick, experts said.
The winter storm hit the New York area by surprise, creating a traffic and travel nightmare.
Several other cities are taking similar action, alleging that the company is operating in their jurisdictions without permission.