D.C. Suspends Most Of Its Metro Trains Over Safety Issue

The National Transportation Safety Board (NTSB) has identified compliance issues with the axles of subway cars, including the latest models, following a derailment investigation. These issues affect about 60% of the Washington Metro's 1200-car fleet. As a result, the Washington Metro Transit Authority plans to operate only 40 trains today.

What issue did the NTSB find with the subway cars?

• The doors were malfunctioning.

• The axles were out of compliance.

• The seats were uncomfortable.

• The windows were not shatterproof.

What event prompted the investigation into the subway cars?

• A passenger complaint

• A derailment

• A routine maintenance check

• A power outage

What percentage of the subway fleet is made up of the new series cars?

• 30%

• 70%

• 50%

• 60%

How many trains does the Washington Metro Transit Authority plan to run?

• 20 trains

• 30 trains

• 40 trains

• 50 trains

What is the main reason for the limited operation of trains?

• Track maintenance

• Weather conditions

• Staff shortages

• Axle compliance issues