Train usage was down 81% Monday, as commuters faced the first workday since a derailment and collision tore apart Metro-North tracks at the Bridgeport-Fairifeld line Friday, May 17.

Gov. Dannel P. Malloy told municipal leaders during a conference call that although there was a dramatic drop in the number of riders, traffic patterns remained the same.

The crash and resulting damage has forced the use of shuttle buses around the damaged track. Up to date commuter information may be found at mta.info.

Malloy said Monday that one track has been restored, and work has been started on the second.

Due to an expected increase in automobile traffic, both tree cutting and construction on the Merritt Parkway have been suspended.

The state Emergency Operations Center (EOC) will be open until 8 p.m. Monday.

Malloy said he does not yet have official cost estimates, although three rail cars have been lost. Those cars will potentially be salvaged for useable parts.

Both trains involved were the new M8 cars that went into service in March 2011.

Trumbull First Selectman Timothy Herbst sent out a citizen alert Sunday night, cautioning residents to expect delays on commute.