Single-digit temperatures Thursday morning — the coldest day in almost a year — sparked a slew of transportation delays around the region, leaving riders disgruntled at late arrivals and missed appointments.
As bitter cold swept across Eastern Massachusetts during the morning commute, 10 of the MBTA system’s 129 trains experienced mechanical problems, while a broken rail at the Central Square T stop, also caused by extreme cold, interrupted service for almost two hours.
On the region’s commuter rail system, 27.7 percent of trains had experienced delays before 2:30 p.m., officials said.
Officials said that the effects of the cold — Boston dropped to 7 degrees just before 6 a.m — could have been much worse, and that many of Thursday’s problems were caused by an aging, underfunded train system.
Thursday’s delays were a marked improvement over a similarly cold day two years ago, when the temperature reached a bone-chilling -2 degrees, sparking delays in 63 percent of the morning commuter rail trains and causing 23 rapid-transit trains and trolleys on the MBTA to stall on the tracks.
Last week, Beverly Scott, the MBTA’s new general manager, declared that “no matter what Mother Nature has in store for us this season, we’re committed to delivering dependable and convenient services.”
After forecasts predicted stinging temperatures, Scott said Thursday evening that she anticipated a challenging day and put staff on guard to quickly respond to potential problems.
Train systems, she said, “can take snow up to 3, 4, or even 5 inches without huge problems, but whenever you get extremely cold conditions,” Scott said, “those are the conditions that are always absolutely an extreme challenge.”
Because of the broken rail line, passengers were herded to shuttle buses to take them between Harvard Square and Kendall Square, a process that some passengers called chaotic, even with automated announcements. Other trains stalled after their air hoses froze, impeding their propulsion systems.
Some of the cold weather problems, Scott said, are exacerbated by the aging T system. But, she said, no system would be immune to these types of occurrences.
“Even if you had completely new equipment, you could wind up having these issues,” she said.
Scott said that while she was proud of the performance of MBTA staff on Thursday and their efforts to keep trains running, she recognized that the T must still do better.
“I can appreciate the fact that there were literally folks left out in the cold today,” she said.
Days as cold as Thursday come infrequently in Boston. In 2012, there was only one day when the weather reached single digits: Jan. 15, when the temperature plunged to 6 degrees, according to the National Weather Service. The year before, there were two days in the single digits: Jan. 23, when the low was 5 degrees, and Jan. 24, when the temperature reached -2 degrees.
Further inland, temperatures Thursday dropped considerably lower than in Boston: Orange reached 10 below zero, according to the National Weather Service meteorologist Charlie Foley. And Milton’s Blue Hill Meteorological Observatory recorded its coldest temperatures in two years, registering 2 degrees Thursday.
But the arctic freeze will not be around for long: Temperatures in Boston next week will probably rise to the 40s or even the low 50s, Foley said.
On the region’s commuter rail lines, the mechanical issues caused by Thursday’s frigid temperatures were wide-ranging: a broken rail, a frozen valve, malfunctioning signal systems (many of which date from the 1950s or 1960s), disabled freight and Amtrak trains. But most of those problems were outside of the authority of the Massachusetts Bay Commuter Railroad Company, spokesman Scott Farmelant said.
Ten trains on the Lowell line and three trains on the Haverhill line were delayed for 3 to 38 minutes because of a signal failure on a portion of the line that is maintained by another company, Pan Am Railways, he said.
Two disabled Amtrak trains also prevented commuter rail trains traveling from Providence, Franklin, Middleborough, Stoughton, and Needham from entering South Station, and delays ranged from 7 to 34 minutes. One MBTA train had to push an Amtrak train into the station.
“There is only one way to prevent cold-weather delays: increased capital investment into the infrastructure, in particular signals, switches, and bridges,” Farmelant said.
“With a system that spans halfway across the state on two lines and from Cape Ann to Kingston, R.I, weather is far more likely to take its toll,” he said. “The best way to respond is by continually upgrading the system with new signals and signal lines.”Continued...