Every other country that has ever built a high-speed rail system has, sooner or later, killed people with it. The French TGV network, launched in 1981, has experienced several fatal accidents over its operating history, including a 2015 derailment near Strasbourg that killed 11 people during a test run. The German Intercity-Express network, launched in 1991, experienced the catastrophic Eschede derailment of June 1998, in which a high-speed train travelling at approximately 200 kilometres per hour disintegrated against a bridge support after a fatigued wheel rim failed, killing 101 people in what remains the deadliest high-speed rail accident in modern history. The Spanish high-speed network experienced the 2013 Santiago de Compostela derailment that killed 79. The Chinese high-speed rail system experienced the 2011 Wenzhou collision that killed approximately 40. The Italian network, the South Korean network, and the Taiwan network have each experienced fatal high-speed accidents. The Japanese Shinkansen, across six decades of continuous operation involving substantially more passenger-kilometres than any of the comparable systems, has not had any such accident at all.
According to Nippon.com’s analysis of the safety architecture that has produced the Shinkansen’s operational record across six decades of service, the absence of fatal accidents is not a matter of luck. It is the product of a small set of structural engineering decisions that the Japanese National Railways made before the system opened in 1964, and that have been preserved across every subsequent expansion of the network. The first decision was that the Shinkansen would operate on entirely dedicated standard-gauge tracks (1,435mm), separate from the narrow-gauge (1,067mm) tracks used by conventional Japanese rail services, with no level crossings, no shared infrastructure, no possibility of conflict with slower trains or road traffic. The second decision was the Automatic Train Control (ATC) system, which monitors the position of every train on the network in real time and automatically reduces the speed of any train that approaches another train or that exceeds the safe speed for its track section — making collision between two Shinkansen trains essentially impossible by design rather than by operator vigilance. The third decision was the Electric Multiple Unit (EMU) configuration, in which every car of every train has its own powered bogies underneath, distributing the weight of the train evenly across the track and reducing both the per-axle load on the rails and the catastrophic-failure potential of any single locomotive component.
What earthquakes do not do to the Shinkansen
The most stringent test of the Shinkansen’s safety architecture has been the substantial number of major earthquakes that Japan has experienced during the system’s operational history. Japan sits at the intersection of four tectonic plates and experiences approximately 1,500 perceptible earthquakes per year — including several of magnitude 6 or greater per decade. The Shinkansen has, on multiple occasions, been operating at high speed during major seismic events. As reported by the High Speed Rail Alliance’s analysis of the operational architecture that has produced the Shinkansen’s record, the key engineering response to this problem is the Urgent Earthquake Detection and Alarm System (UrEDAS), which detects the primary P-waves of an earthquake — the faster, lower-amplitude initial waves — and automatically applies emergency braking to all affected trains before the more destructive secondary S-waves arrive at the train’s location. The time difference between P-wave detection and S-wave arrival is typically a matter of seconds, but those seconds are sufficient, at typical operating speeds, to substantially reduce the train’s velocity before the destructive shaking begins.
The system’s most consequential operational test came on 11 March 2011, the day of the magnitude 9.0 Tohoku earthquake — the most powerful earthquake ever recorded in Japan, which produced the tsunami that killed approximately 20,000 people along the Pacific coast and caused the Fukushima Daiichi nuclear disaster. At the moment the earthquake began, 27 Shinkansen trains were operating in the affected region, several at speeds above 270 kilometres per hour. UrEDAS detected the initial P-waves. The system automatically commanded emergency braking on every operating Shinkansen train in the region. Every train stopped safely. No passengers were injured. No trains derailed at operational speed. The only Shinkansen rolling stock damaged in the earthquake consisted of empty trains parked in maintenance facilities, several of which derailed during the most intense ground motion. The contrast between the catastrophic damage the earthquake inflicted on essentially every other category of Japanese infrastructure — coastal cities, nuclear power plants, roads, conventional rail, ports, airports — and the Shinkansen’s operational performance was, in subsequent post-event analysis, among the more striking single demonstrations of safety engineering in 21st-century infrastructure history.
The cumulative arithmetic of six decades
The 60-year accumulation of passenger volumes and operational hours produces statistics that are difficult to grasp at the per-individual level. As detailed in a JR Pass historical summary of the Shinkansen’s development and its operational impact on Japanese society, the network has expanded substantially from its original Tokyo-Osaka corridor — adding the San’yo Line in 1972 (extending to Hakata in 1975), the Tohoku Line in 1982, the Joetsu Line the same year, additional lines through the 1990s and 2000s, and most recently the Hokkaido Line extension in 2016 — and now connects essentially every major city on the Japanese main islands of Honshu, Kyushu, and Hokkaido. The total network has reached approximately 3,000 kilometres of dedicated track. Daily ridership across the network is approximately 1 million passengers system-wide, with the original Tokaido Line alone carrying approximately 400,000 of those each day. During peak commuting hours on the Tokaido Line between Tokyo and Osaka, trains depart Tokyo Station approximately every three minutes. The average annual delay per train, including weather delays, mechanical issues, and the occasional disruption from passenger incidents, is measured in seconds rather than minutes — typically between 24 and 60 seconds depending on the operating year. If a Shinkansen arrives more than five minutes late, its operating company will issue a printed “Delay Certificate” to passengers who require documentation of the delay for their employers.
The cultural and economic effects of six decades of reliable high-speed rail have transformed Japanese society in ways that the 1964 planners did not fully anticipate. Per Japan Today’s analysis of the Shinkansen’s place in Japanese cultural identity and its underutilised export potential, the Shinkansen has made same-day business travel between Tokyo and Osaka — once a multi-day undertaking — a routine part of Japanese commercial life, enabling Japanese corporations to maintain genuinely national operations in ways that the country’s geography (a long, narrow archipelago with mountainous interior) had historically made difficult. It has reshaped Japanese professional baseball scheduling, eliminated the doubleheader as a competitive necessity, accelerated the spread of regional cultural forms (the Osaka-based comedy tradition of owarai became a national phenomenon largely because of the Shinkansen), and standardised Japanese expectations of punctuality across essentially every sector of national life. The Shinkansen has, since 2011, also become Japan’s most successful failed export. Despite repeated attempts to sell Shinkansen technology to the United States, the United Kingdom, India, Brazil, and various other countries over the past three decades, the system has been exported in its full operational form only to Taiwan (which opened its own Shinkansen-based high-speed network in 2007). The other countries that have built high-speed rail since 1964 — France, Germany, Spain, China, South Korea, Italy — have all developed their own independent technical traditions. The Shinkansen’s combination of dedicated infrastructure, automatic train control, electric multiple unit configuration, earthquake-detection emergency braking, and the institutional safety culture that the original Japanese National Railways operators built around the system has, after 62 years and 10 billion passenger journeys, remained unmatched by any comparable rail system anywhere else in the world.