The Most Dangerous Subway in America

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Key takeaways

- Boston abandoned major urban highway expansion after a broad public revolt and redirected investment toward rail. Approximately 2,000 people protested on January 25, 1969, and Governor Francis Sargent subsequently imposed a highway moratorium before freezing construction inside Route 128 in 1972.

- A fatal Red Line accident in 2022 exposed systemic safety failures across Boston's subway. Faulty door wiring allowed a train to depart with a passenger's arm trapped, killing him; a subsequent federal investigation reported that Boston's rail system accounted for 94% of nationwide light-rail injuries between 2017 and 2021.

“MBTA collisions and derailments far outpaced national averages”

- By December 2023, Boston's subway had 179 slow zones covering approximately one-quarter of its rail sections. Some trains were restricted to just 3 mph, while average speeds on the Orange, Red, and Blue lines had declined since 2016 despite prolonged maintenance closures.

- Boston's radial subway design makes many journeys unnecessarily long and leaves entire corridors vulnerable to closures. Traveling from Cambridge to Winter Hill takes approximately 45 minutes by subway versus 10 minutes by car, because passengers must travel through downtown rather than use direct connections between outer neighborhoods.

“A network like this becomes single-point-of-failure”

- Boston's subway recovered to only half its pre-pandemic ridership, compared with approximately 75% across American transit agencies and 90% in London. Remote work eliminated many downtown commutes, while Boston's limited connections between outer neighborhoods made the network poorly suited to attracting passengers making other kinds of journeys.

“Rather, the commuter traffic just disappeared leaving the T with a fraction of its previous ridership.”

- The MBTA's financial crisis worsened as fare revenue fell from covering 43% of expenses before COVID to just 19% afterward. Debt accounted for approximately 20% of annual costs, half of it interest, while deferred maintenance, staffing shortages, and expiring federal pandemic support added further pressure.

- Boston's commuter rail recovered to nearly 95% of pre-pandemic ridership after making its schedules more useful beyond rush hour. The Worcester route retained approximately 20 daily trains but redistributed departures to provide at least hourly service from 4:15 a.m. to 10:25 p.m., attracting a broader mix of passengers.

“this shift towards less commuter-focused scheduling on this and other lines is a major factor behind its rather strong ridership”

- The MBTA's relatively successful commuter rail serves wealthier passengers, while its governance gives substantial representation to commuter-rail communities. Only 22% of commuter-rail riders came from households earning under $56,000, versus 36–43% on subway lines; commuter rail represented 10% of ridership, yet roughly 2½ of four geographically linked board seats favored its communities.

“While it’s hard to prove this board is disproportionately focusing resources and attention on commuter rail”

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- On January 25, 1969, approximately 2,000 protesters gathered at the Massachusetts State House to oppose highway expansion. The demonstration, known as People Before Highways Day, challenged plans that threatened to demolish neighborhoods and reshape Boston around automobiles.

- Boston's highway opposition brought together unusually diverse political and social groups. Working-class Cambridge residents, Black Power activists, women's liberation advocates, Native American rights activists, union workers, and professors from Harvard and MIT united against projects they believed would destroy homes and communities.

- The Interstate Highway Act of 1956 had accelerated the transformation of Boston's transportation network. Interstate 93 had already divided established communities, while planners proposed additional expressways and an inner beltway connecting the region's major highways.

- Highway construction intensified existing urban problems. Boston was already confronting urban decay, destructive redevelopment, discriminatory redlining, and racial tensions. Opponents regarded further expressway construction as another threat to vulnerable neighborhoods.

- Governor Francis Sargent responded to the anti-highway movement by declaring a highway construction moratorium. His decision marked a significant departure from the prevailing American approach of expanding urban expressways.

- In 1972, Sargent announced a construction freeze on highways inside Route 128. Instead of building a major expressway through Boston's Southwest Corridor, Massachusetts approved investments in subway and commuter rail transportation.

- Boston possessed an important advantage over cities built around automobiles: its underlying urban design. Developed long before widespread car ownership, Boston had dense neighborhoods and relatively short distances between destinations, making it naturally suitable for walking and public transportation.

- The Massachusetts Bay Transportation Authority was established in 1964 as a unified regional transit organization. It brought Boston and 77 surrounding communities into a common transportation structure, described in the documentary as the first integrated regional transit system of its kind in the United States.

- The MBTA consolidated several transportation modes under one organization. Subway lines, buses, streetcars, and light rail operated within a regional framework supported by a broad tax base.

- Boston's subway network was organized around four color-coded lines. The Orange Line connected northern Boston with Forest Hills, the Blue Line linked Bowdoin Street with East Boston, the Red Line connected Harvard with South Boston, and the Green Line extended from Riverside through downtown.

- The subway underwent substantial modernization during its early expansion period. Portions of the elevated Orange Line were relocated underground, some Green Line streetcar services were replaced with buses, and the Red Line extended farther from downtown in both directions.

- Much of the subway's train fleet had been replaced or recently modernized by the early 1970s. Combined with political support, regional organization, and Boston's dense layout, these improvements appeared to position the network for long-term success.

- Boston's early transportation advantages did not produce the modern, reliable subway system that planners anticipated. By the 2020s, the network was suffering severe safety problems, declining speeds, outdated infrastructure, and financial distress.

- Federal regulators intervened in 2022 as serious safety failures attracted national attention. A subsequent 90-page Federal Transit Administration report documented extensive deficiencies in the MBTA's operations and safety management.

- A fatal Green Line collision in 2008 exposed weaknesses in operational safety and employee screening. On the D branch, a westbound train passed a restrictive signal and struck another train at approximately 38 mph, or 61 km/h, while the leading train was traveling very slowly.

- The 2008 collision killed the train operator and injured 14 other people. Investigators suspected the operator had fallen asleep because of sleep apnea that had not been identified during hiring, but the operator's death prevented investigators from conclusively establishing what happened.

- Another Green Line collision occurred less than a year later, this time involving a distracted operator. Underground congestion between Government Center and Boylston had stopped Train 3808 after it obeyed yellow and red signals.

- Train 3612 struck the stationary Green Line train at approximately 25 mph, injuring 68 people. Federal investigators examined brakes, signals, and sight lines before determining that its operator missed the warnings while attempting to send a text message.

- The two Green Line collisions exposed different forms of operator failure. The first raised concerns about identifying medical conditions that could impair train operators; the second demonstrated the consequences of distraction while operating a train.

- The Orange Line experienced six derailments near Wellington station between 2019 and 2020. One was attributed to weather, while the remaining five resulted from an unexpected incompatibility between newly introduced trains and older tracks.

- The Orange Line derailments demonstrated that purchasing new trains was not enough to modernize the network safely. New rolling stock had to function correctly with aging infrastructure, creating additional engineering and operational challenges.

- A fatal Red Line incident in 2022 involved a passenger whose arm became trapped in a train door. An electrical short circuit allowed the train to depart instead of remaining stationary, dragging the passenger from the platform and causing his death.

- The fatal Red Line incident preceded the federal safety report by approximately four months. The investigation documented wider failures rather than treating individual accidents as isolated events.

- The federal investigation found that MBTA collisions and derailments occurred at rates substantially above national averages. The documentary also cites a finding that Boston's rail system accounted for 94% of reported light-rail injuries nationwide between 2017 and 2021, an extraordinary figure presented as evidence of its safety problems.

- The subway's deterioration extended beyond accidents to increasingly slow service. Worn infrastructure, maintenance work, and the installation of upgrades required numerous restrictions on operating speeds.

- By early December 2023, Boston's subway had 179 designated slow zones. Approximately one-quarter of its rail sections were subject to speed restrictions, with some trains required to travel as slowly as 3 mph, or 5 km/h.

- The MBTA introduced an interactive tool showing the locations and severity of speed restrictions. This allowed passengers to track slow zones across the network rather than relying solely on general service notices.

- Several major subway lines underwent prolonged shutdowns for repairs. The Orange Line closed for approximately one month in summer 2022, the Red Line underwent a 16-day shutdown in fall 2023, and the Green Line experienced a nine-day closure during winter 2023.

- The documentary argues that extended shutdowns were not producing lasting improvements in operating speeds. Despite maintenance interventions, the overall amount of time lost to speed restrictions had increased, and average speeds on the Orange, Red, and Blue lines had declined since 2016.

- Boston's status as an early adopter of subway transportation created lasting engineering constraints. Older tunnels contain narrow clearances and tight curves, making maintenance access, track alteration, modernization, and network expansion more difficult.

- Outdated rolling stock added to the subway's maintenance burden. Much of the train fleet described in the documentary dated from the 1990s or earlier, with some equipment originating in the 1960s.

- Unreliable subway service imposed consequences beyond longer journeys. Unexpected delays could prevent passengers from arriving at work or collecting children from daycare on time, reducing confidence in public transportation.

- Persistent delays encouraged passengers with access to cars to abandon the subway. This meant service deterioration threatened future ridership as well as the experience of existing passengers.

- Boston's subway follows a predominantly radial network design. Most lines extend outward from the downtown core toward surrounding neighborhoods and suburbs, rather than providing numerous direct connections between outer destinations.

- Radial networks are particularly effective for conventional suburb-to-downtown commuting. The documentary identifies similar arrangements in Washington, DC, and Philadelphia, contrasting them with the more interconnected networks of London, Paris, Copenhagen, and Oslo.

- Boston's subway resembles a smaller version of its commuter rail network. Both concentrate heavily on transporting passengers into and out of central Boston, limiting their usefulness for trips that do not involve downtown.

- A conventional commute from Winter Hill to downtown Boston illustrates where the subway works well. The documentary estimates an 18-minute subway journey that is both faster and cheaper than driving during rush hour.

- Adding a third destination can make the subway dramatically less practical. A Winter Hill resident traveling from downtown work to an activity in Cambridge could reach the activity conveniently, but returning home would require traveling back toward downtown and transferring outward again.

- The Cambridge-to-Winter Hill example illustrates a major competitive disadvantage. The return trip is estimated at 45 minutes by subway, compared with 10 minutes by car or 40 minutes on foot.

- The network's shape discourages wealthier passengers from using transit for complex daily travel. People who can afford cars may use the subway for predictable downtown commutes but switch to driving for activities involving multiple destinations.

- Passengers without access to cars remain more dependent on the subway despite its limitations. The documentary identifies two important groups: commuters making straightforward downtown journeys and lower-income residents who cannot easily choose another transportation mode.

- The documentary argues that American subway design has concentrated too heavily on these two groups. By serving downtown commuters and residents with few alternatives, networks have neglected opportunities to attract passengers making other kinds of journeys.

- Paris demonstrates how a more interconnected network can support travel between destinations outside a single downtown corridor. Multiple intersecting lines create alternative routes and make public transportation more competitive with driving.

- Network redundancy becomes especially important during planned closures or unexpected disruptions. When one route closes in a highly interconnected system, passengers may be able to use neighboring lines instead of losing access to rail transportation altogether.

- Paris Metro Line 4 underwent periodic modernization closures during 2023 without eliminating all practical subway alternatives. The documentary uses this as an example of how overlapping routes can preserve mobility during infrastructure work.

- A Paris journey from Gare du Nord to Saint-Placide normally taking approximately 16 minutes could still be completed in around 21 minutes during a Line 4 closure. The alternative involved using Line 2 from Barbès–Rochechouart and transferring to Line 12 toward Rennes.

- A 2017 weekend Red Line closure between Boston and Cambridge exposed the fragility of Boston's network. Unlike Paris, the subway offered no alternative rail route between those two areas during the closure.

- The absence of alternative connections makes important subway corridors single points of failure. A disruption on one line can remove an entire travel connection rather than merely lengthening the journey.

- A network designed around downtown commuting can lose even its strongest customers when reliability deteriorates. Commuters who previously valued direct subway journeys may switch to cars if maintenance closures make the service unpredictable.

- The documentary identifies orbital or ring transit routes as a structural solution. Connections between radial lines outside downtown would allow passengers to travel between outer neighborhoods without first passing through the city center.

- Ring routes could also reduce pressure on expensive downtown infrastructure. Moving some passenger transfers away from central Boston would reduce dependence on tunnels and stations where construction, operations, and maintenance are particularly complicated.

- Boston already applies the principle of orbital connections to its highways. Two major ring roads support travel between suburbs without requiring drivers to pass through downtown.

- Boston previously considered creating an orbital public transportation network but failed to secure funding. The proposal did not advance to a full rail system, and even the bus routes intended for its first phase lacked sufficient financial support.

- Washington, DC's metropolitan area provides an example of an American region addressing the same design weakness. A light rail project through Maryland suburbs, discussed as under construction at the time, was intended to connect with the Washington Metro at four locations.

- The Maryland light rail project faced years of opposition from some affluent communities along its proposed route. The documentary presents the project's eventual progress as an example of overcoming resistance to cross-suburban public transportation.

- New York City's proposed Interborough Express represents another approach to improving outer-neighborhood connections. The project was envisioned as a Brooklyn-to-Queens rail link with connections to existing subway services at 17 points.

- New York already possessed stronger subway connections outside its downtown core than most American cities. The documentary presents the Interborough Express as a way to extend this advantage into underserved communities.

- Boston's reliance on downtown commuters was visible in its 2019 ridership pattern. Passenger numbers rose sharply during morning and evening rush hours, indicating heavy dependence on conventional office schedules.

- The COVID-19 pandemic exposed the weakness of that reliance. Remote and hybrid work reduced the number of people commuting to downtown offices, sharply reducing demand during the subway's traditional peak periods.

- Boston's peak commuting ridership fell by nearly half, while remaining journeys became more evenly distributed throughout the day. The change reflected both altered working patterns and the continued effects of poor service.

- More evenly distributed passenger demand can improve transit efficiency. Agencies otherwise need enough trains, staff, and infrastructure for rush-hour crowds while carrying the cost of that capacity during quieter periods.

- Boston could not easily replace lost commuters with passengers making other kinds of journeys. Because its network was designed chiefly for downtown commuting, reduced office travel translated into substantially lower overall demand rather than a successful shift toward different users.

- The documentary reports that Boston's subway recovered to only about 50% of its pre-pandemic ridership. At the time of comparison, London's Underground had recovered to around 90%, while American transit agencies generally averaged approximately 75%.

- The ridership collapse sharply weakened the MBTA's fare revenue. Before the pandemic, fares covered approximately 43% of operating expenses; afterward, the proportion had fallen to around 19%.

- The MBTA was already in serious financial difficulty before COVID-19. Reduced passenger revenue deepened an existing imbalance rather than creating the agency's financial problems from nothing.

- Debt represented approximately 20% of the MBTA's total annual costs. About half of that debt-related spending went toward interest payments, meaning interest alone consumed roughly 10% of total costs under the figures presented.

- The agency also faced substantial costs from deferred maintenance and staffing shortages. It relied on expensive overtime to compensate for inadequate staffing while continuing to address aging infrastructure and technical defects in new trains.

- The MBTA's financial pressures were mutually reinforcing. Aging assets required expensive repairs, poor service discouraged ridership, falling fares weakened revenue, and debt obligations reduced the funds available for improvements.

- Temporary federal pandemic assistance had not resolved the agency's underlying finances. At the time of the documentary, the MBTA was approaching a funding shortfall as one-time federal support neared exhaustion.

- The agency's financial problems threatened both routine operations and long-term improvements. Without additional resources or structural changes, the documentary questioned how the MBTA would pay existing bills, let alone complete the work necessary to restore reliable service.

- The MBTA's subway struggles were not equally reflected across its entire transportation portfolio. The agency also managed regional buses, ferries, and commuter rail, with commuter rail performing comparatively well.

- Commuter rail proved more reliable than the subway despite experiencing its own operational difficulties. The documentary identifies it as one of the few relatively successful components of the MBTA network.

- The commuter rail system had previously concentrated service around traditional work commutes. Its schedules provided high frequency in the morning and evening but often left long gaps during the middle of the day.

- In summer 2018, the Worcester-to-Boston commuter rail service operated approximately 20 trains daily. Eight departed before 9 a.m., while midday passengers often faced gaps of roughly two hours between services.

- The MBTA subsequently redistributed Worcester commuter rail services more evenly across the day. The route continued operating approximately 20 trains daily but provided at least hourly service between approximately 4:15 a.m. and 10:25 p.m.

- The revised Worcester timetable made commuter rail more useful for passengers beyond conventional office workers. People traveling for other purposes could make midday journeys without facing lengthy gaps or becoming stranded far from Boston.

- The timetable changes effectively moved commuter rail closer to a regional rail model. Instead of primarily serving peak-hour commuters, the service became more practical for a wider range of trips throughout the day.

- MBTA commuter rail ridership recovered to approximately 95% of pre-pandemic levels. This significantly exceeded the roughly 50% recovery reported for Boston's subway and the approximately 75% average for American transit systems.

- The MBTA attributed part of commuter rail's strong recovery to its revised scheduling. More evenly distributed services improved convenience for people whose travel needs did not fit traditional morning and evening commuting patterns.

- The contrast between subway and commuter rail suggests that service design can affect ridership independently of broader travel trends. Both networks experienced the pandemic, but the commuter rail's expanded usefulness coincided with substantially stronger passenger recovery.

- Commuter rail and subway passengers came from noticeably different income groups. Commuter rail primarily served suburban communities with relatively high household incomes, while subway passengers were more likely to come from lower-income households.

- Only 22% of commuter rail riders came from households earning less than $56,000 annually. On the subway, the corresponding proportion ranged from 36% to 43%, depending on the line.

- The income disparity influenced passengers' ability to respond to deteriorating service. Higher-income riders were more likely to have alternative transportation, whereas lower-income passengers could remain dependent on the subway despite worsening conditions.

- The documentary argues that American transit policy gives disproportionate attention to attracting people who already own cars. Politicians and transit agencies frequently measure success by reduced traffic congestion, making motorists who can choose public transportation politically important.

- Framing transit mainly as an alternative to driving overlooks its role in creating economic opportunities. The documentary argues that transport should also be judged by how effectively it connects people to work, education, services, and other destinations.

- Better transportation can reduce economic inequality by expanding access to employment. A reliable network allows people to reach jobs beyond their immediate neighborhoods regardless of whether they can afford a car.

- Boston's current transit arrangement can produce the opposite effect. A wealthier person living farther from downtown may have an easier rail commute to a desirable job than an equally qualified lower-income person living closer to the city center.

- Reliable commuter rail serving affluent suburbs alongside unreliable subway service in poorer neighborhoods can reinforce existing income divisions. The documentary presents this as a contradiction of public transportation's potential to equalize access to opportunity.

- The MBTA is overseen by a seven-member board appointed by the Massachusetts governor. The documentary examines the board's geographical connections as a possible influence on the agency's priorities.

- Four of the seven board members discussed in the documentary had direct professional relationships with communities served by the MBTA. Their connections provided a basis for comparing representation of subway-dependent areas with commuter rail communities.

- Mary Roberts was identified as the board member representing Boston itself. Because commuter rail primarily brings passengers into Boston from outside the city, the documentary treats her position as more closely associated with subway interests.

- Board vice-chair Thomas Koch was also mayor of Quincy, a community served by both subway and commuter rail. The documentary argues that commuter rail may hold particular importance for Quincy because its trains can reach downtown Boston approximately twice as quickly as the subway.

- Thomas McGee and Charlie Sisitsky were identified as mayors of Lynn and Framingham, respectively. Both communities were described as relying on commuter rail rather than direct subway service.

- The documentary estimates that approximately two and a half of the four geographically connected board positions leaned toward commuter rail interests. This assessment counts Quincy's representation as partly commuter rail-oriented while assigning Lynn and Framingham more directly to commuter rail.

- Commuter rail represented only about 10% of total MBTA ridership, compared with roughly 50% for the subway. The contrast raises questions about whether the governing board's geographical representation reflects the relative number of passengers served.

- The documentary does not establish that board membership caused preferential treatment of commuter rail. It presents the composition of the board and the differing performance of the two systems as grounds for concern, while acknowledging that disproportionate allocation of resources has not been demonstrated.

- The documentary also raises the possibility that wealthier suburban communities possess greater political influence. Its suggestion that political fundraising may favor commuter rail communities is presented as a possible incentive rather than evidence of a specific improper arrangement.

- The 90-page federal safety report is presented as evidence that the MBTA's problems extend beyond individual accidents. The documentary identifies operational management, maintenance, staffing, and institutional shortcomings as contributing factors.

- The documentary rejects the idea that effective subway operation requires extraordinary technological breakthroughs. It points to cities around the world operating successful rapid transit systems under different economic, geographical, and climatic conditions.

- The central criticism is that many American transit systems were designed and managed without fully committing to their usefulness. Rather than building networks capable of serving a broad range of daily trips, agencies concentrated on narrower commuting functions.

- The documentary describes this approach as a culture of incomplete transportation investment. Cities build rapid transit infrastructure but do not always provide the network connections, schedules, reliability, and maintenance needed to make it a practical first choice.

- New York City is presented as a significant American exception. Its subway accommodates downtown commuters alongside students, recreational travelers, tourists, and people making journeys unrelated to traditional office work.

- New York's broad range of subway users helps make public transportation part of the city's everyday identity. The documentary argues that this creates stronger incentives to maintain and improve service because transit is useful to many different groups.

- New York's subway still faces substantial problems and compares unfavorably with some European systems. Nevertheless, the documentary considers its overall position considerably stronger than Boston's because it serves a wider variety of travel patterns.

- The documentary distinguishes between repairing physical infrastructure and changing the underlying purpose of a transit network. Tracks, tunnels, trains, and stations can theoretically be repaired with sufficient investment, but fundamentally redesigning American cities' transportation systems presents a larger challenge.

- Transforming predominantly radial American subway networks into highly interconnected systems would require major investments and political changes. The documentary acknowledges that wholesale redesign is unlikely under the prevailing circumstances.

- The proposed long-term strategy begins with treating transit improvements as investments that create demand. Better service can attract passengers who previously found public transportation inconvenient or unreliable.

- Higher ridership can create a positive cycle of stronger service and further demand. Increased use can support additional investment, allowing transit networks to become progressively more useful.

- The reverse cycle can be equally powerful. Poor reliability drives passengers away, declining ridership reduces revenue and political support, and limited resources make it harder to restore service.

- Boston's subway illustrates how operational failures and network design can reinforce one another. Its limited travel patterns made it vulnerable to changing commuter habits, while safety problems, slow zones, and closures accelerated the loss of passengers.

- The difference between Boston's subway and commuter rail suggests that expansion of practical usefulness matters as much as physical infrastructure. Commuter rail recovered strongly after making its timetable more useful throughout the day, while the subway continued struggling to attract passengers outside its traditional commuting market.

- The documentary's final policy argument is that effective public transportation should help produce economic and urban success rather than merely follow it. Investing in reliable, interconnected service can expand opportunities and generate future demand, whereas allowing deteriorating systems to continue declining risks making their problems progressively harder to reverse.