The Journal News | LoHud.com | Oil trains: Feds call for urgent upgrades after fires The Journal News | LoHud.com Most of those freight rail shipments use "unit" trains containing at least 100 tank cars filled with crude oil or ethanol, which has raised safety concerns in communities adjacent to the rail lines being used, including those near the CSX tracks in ... More than 1 million Philadelphia-area residents said to be at risk. NTSB issues recommendations to boost oil train safety Safety Board Urges Aggressive Timetable to Replace Oil Tank Cars |