CONNECTICUT - There were major traffic troubles on the roadways this morning despite crews working around the clock to repair the Metro-North rail line after a train derailment Friday night.

Traffic along I-95 and the Merritt Parkway was crawling at 15 mph at times. Officials say the collision impacts about 30,000 people.

The collision caused seats to rip out of place and windows to smash. Seventy-two people were injured, and nine of them are still hospitalized.

Sixteen train cars were removed from the tracks Sunday on the New Haven line, which stops in the Bronx. Service to and from New York is limited and delays are expected on other lines.

A fleet of 120 buses was on standby this morning in Bridgeport, Conn. to help New York City-bound commuters make their way between New Haven and Bridgeport.

Many riders opted to drive instead, which caused some traffic congestion.

National Transportation Safety Board investigators say they have made significant progress in the last couple of days.