Credit: U.S. Transportation Secretary Anthony Foxx says the Department of Transportation will conduct a separate investigation into the fatal Metro smoke incident. (WTOP/Sarah Beth Hensley)

Transportation secretary: Funding needed to help nation’s run-down bridges

NTSB: Metro fan use sent smoke toward train

Repair work begins after chunk of Md. bridge hits car

Hearing set for Metro fare increases

Expect delays on MARC’s Penn Line

VRE proposes fare hikes, outlines long, long-term expansion