Train Driver Couldn't Hear the Radio Warnings | Plainly Difficult

Duration: 11:39 1930 transcript words EN summary

Video summary

The video examines the 2002 Downhill train crash in Northern Ireland, a disaster where a Class 80 diesel-electric multiple unit collided head-on with a large boulder on the single-track line between Derry and Coleraine. The presenter highlights that while the trains appear British, they operate under unique conditions due to Northern Ireland's distinct railway gauge and signaling systems, which differ from those in England but share interoperability goals with the Republic of Ireland at the time. This specific section of track runs along a scenic coastal route through cliffs, making it susceptible to rockfalls, yet lacked modern safety infrastructure like continuous automatic warning systems found on cross-border services into the south. The incident occurred when a boulder dislodged from the nearby cliff face and landed directly in the train's path at approximately 1:08 PM. Although a passerby spotted the obstruction around that time and called emergency services, the Northern Irish Rail Control Room attempted to warn the approaching driver via radio broadcasts but received no response because the train's two-way radio was either switched off or set to such low volume that it could not receive safety-critical messages. Unlike modern GSMR systems which automatically prioritize emergency calls regardless of other settings, these older radios allowed drivers to silence them completely, leaving the operator unable to stop the train despite knowing its location and speed as it approached the danger zone at 60 mph. Upon seeing the boulder just before impact, the driver applied the emergency brakes, but the momentum was too great for the train to avoid derailment; it struck the rock with a loud bang, lifted into the air, and crashed along the embankment until coming to rest roughly 129 meters from the point of collision. Fortunately, all twenty-four passengers were evacuated safely without any fatalities thanks to the quick actions of bystanders who assisted in removing injured people while emergency services arrived shortly after. The investigation concluded that while rockfalls are a natural hazard for cliffside tracks, the primary cause of the crash was inadequate slope management by landowners and the critical failure of communication systems due to antiquated radio technology designed decades prior. Ultimately, the video serves as a cautionary tale about how outdated equipment can override safety protocols in high-risk environments. The presenter notes that while rockfalls were inevitable given the geography, there should have been better mitigation strategies implemented by rail authorities who failed to respond to previous requests for slope maintenance from landowners. This failure was compounded by the design of the Class 80 carriages, which allowed radios to be turned off entirely—a feature deemed unacceptable in modern standards where emergency communication must remain active even if other functions are disabled. The line eventually reopened weeks later after repairs were completed, but the event underscored the urgent need for upgrading signaling and radio systems across Northern Ireland's railways before they could fully integrate with a unified European standard decades down the road.

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What we are looking at here is a massive train crash. Clearly something has gone wrong. Carriages are strewn all around, almost like someone had picked them up and just thrown them around. Now, looking at these pictures you might be confused as to where this has taken place. The trains look British, but they do look a little bit odd. The track gauge also looks a bit too big for a British train. Well, technically it is a British train, but it's not from England, Wales, or Scotland. It's from the bizarro land of railways of Northern Ireland. I mean this in a sense that they are clearly heavily influenced from mainline UK railways, but everything is slightly different. A different rail gauge, but same signaling principles. Mark II derived rolling stock, but very un-mainline-like cabins. Rail lines, which also connects up to another country with cross-border services. It makes for an interesting research project for a train geek like me. But regardless, we're here to talk about a train crash. Today we're looking at the 2002 Downhill crash, where a train went head-on into a boulder of all things. My name is John, and welcome to Plainly Difficult. This video wouldn't have been possible if it wasn't for my YouTube patron and coffee members. If you want early access to the channel's videos, then you can from just £1 per month. And as always, links will be in the pinned comment below. Disclaimer. So, I have to say before starting that doing a video on a subject in Northern Ireland will likely upset some or all of you. I'm not going into politics, even though today we will do a little bit of history. Some background on me. Part of my family actually come from the Republic of Ireland, not far from the border in sunny Sligo. And most of my family on that side are Catholic. I was bizarrely christened Protestant due to my English dad, even though my mom and nan are Catholic. Personally, I'm a convinced Quaker. And to make things even more confusing in terms of my family history, my great uncle actually fought during the Easter Rising in Na Fianna Éireann. His brother, basically my great granddad at the time, was serving, like many Irishmen at the time, in the British Army. On my father's side, I am English. But as far as I've been able to go back, my ancestry is rather uninteresting in that everyone on that side was poor and grew up and died around the Elephant & Castle, all the way back as far as I've been able to trace to the 1680s. I will mention a city whose name is controversial. That is of Derry/Londonderry. Whichever name I choose will offend someone, so maybe I should just call it Derry/Londonderry just to piss everyone off. I'll probably just use Derry for ease of use. Anyway, that awfully written disclaimer out of the way, TLDR, please don't hate me for any faux pas with the Troubles and the political situation in Northern Ireland. I'm just here to tizz them out over the trains. The scene. So, this is the Derry to Belfast line. It's a main line between Northern Ireland's two biggest cities. The route runs on Irish gauge tracks. The gauge is shared with the Republic, thus interoperability is possible. Albeit units used for cross-border services have to have two different types of signaling systems installed as the Northern Ireland trains use British standard of AWS and TPWS, and the Republic uses a pretty cool enhancement of AWS called continuous automatic warning system, which uses codes in the track to update the driver of any signal stepping up. This is quite similar to what's used in some parts of America. However, all these differences will be washed away when the whole of island of Ireland is united under the railway god of ETCS, which apparently it rolling out in the 2030s and will mean that all the trains will be running on basically the same signaling system. So, the line runs as a double-track for parts and as a single line for others with passing loops. Our story today looks at a single-line section in a place called Downhill. It lurks between Derry and Coleraine. Running along the coast, it looks absolutely beautiful and I'd really like to go there one day. I've only been to Northern Ireland once and that was on a drive from Sligo to Dublin and we thought we'd take a bit of a detour. The area is outlined by cliffs along the sea line interspaced with beaches. The train line actually runs through the cliffs in a 500-m long tunnel after leaving Castlerock Station. The track has a PSR of 70 mph with lower restrictions for some sections and is signaled using the token system with network communications done via two-way high-frequency radio. This was in 2002. It wasn't intended for safety-critical information outside of potential troubles-related incidents. The trains that ply the route are the Class 80s. These are diesel-electric multiple units. They are powered by diesel engine which generates electricity for the traction motors. They are derived from the Mark II British Rail carriages used on the mainland and had slam doors where passengers manually open and close the doors. So, I think I've covered most of the background which leads us onto the train crash. The disaster. It is 10:25 on the morning of the 4th of June, 2002 and a three-car Class 80 service has set up from Belfast to Derry. It travels along the Derry-Londonderry line stopping at its book stops with no real issues. Upon reaching Derry, the train was readied for its return working under the head code of B Bravo 411. Side note, any Northern Irish rail workers out there, do you call it a headcode or is it just a train running number? Anyway, it was to be worked as the 12:50 service back to Belfast. It departed and proceeded along the line as normal. It was scheduled to stop at Bellerena at 13:15. Meanwhile, at around 10 past 1:00, a passerby along the Bishop's Road near Downhill noticed some rubble on the ground that had apparently fallen from the nearby cliffs. They continued to look around at the rubble and discovered some related fallen onto the railway, including a large boulder which was in the 5-ft permanent way. The member of public called the PSNI, which is the Police Service of Northern Ireland, Limavady Police Control Room. This was at around 13:13. The boulder was estimated to be around 1 m wide and 1 m deep. Information was passed on to the Northern Irish Rail Control Room, which who concluded that the obstruction must have been on the line around Downhill. The control room connected to the local signal who confirmed that the train in the area had departed past signal Charlie Kilo 336 and was on the single line heading towards the obstruction. Thus, meaning there was no signaling protection that could have been put in place to stop the train. The controller at NIR attempted to make two general broadcasts in the hopes of reaching the train, but they did not get a response. There was no emergency broadcast feature of the two-way radio, like what we have today of GSMR. Thus, there was no real way to stop the train. Around this time, train Bravo 411 was approaching the curve near Downhill running at a speed of 60 mph. Quickly, the boulder came into view and the driver applied the emergency brake. A moment later, after emergency brakes were applied, the driver heard a loud bang quickly followed by it rising up into the air. The train became derailed and crashed along the cess of the railway until the rear end of the unit came to a rest 129 m from the point of impact leaving this as the crash site. The train's guard called the Northern Irish Rail controller on their personal phone and reported the derailment and subsequent crash. This was at around 24 minutes past 1:00 in the afternoon after which they helped with assisting passengers off the stricken train. The passerby who called the boulder in to 999 then went in to assist passengers on the crashed train. They helped remove the driver and administer first aid to them. This guy was the real hero of the day. All 24 people aboard the train were evacuated and not a single life was lost which means police, ambulance, and fire services would arrive on the scene shortly after to assist and triage the injured. Initially the crash would be classed as a major incident and PSNI had control over the crash site. The classification would be lowered to a local incident and the police would release the site to NIR. Evidence from the scene was collected and the train was inspected in situ for any obvious mechanical causes. The train was removed later on and the line was reopened a few weeks later on the 24th of June 2002. Which leads us on to the investigation. Clearly the main cause of the crash was the dislodged rocks. But how did it happen in the first place? Well, it was just cliffs doing what cliffs do in that they are gradually falling apart. The investigators did note that the slopes weren't properly managed. The land's owner had allowed road service to maintain the slopes on his behalf to prevent road related accidents and he had contacted NIR prior to the accident for a similar arrangement but they never responded. The journey out seemed uneventful, even the part traveling through the tunnel near Downhill. So clearly the rock failure had occurred between 12:07 and when the train passed the first time to the impact at 13:15. The rock fall was an inevitable incident, which means there should have been proper mitigation for this. So, those initial looks at the train post-crash would pick up on a pretty important issue. The train radio was switched off. Testing found that the radio calls should and would have been picked up, even though reception along the line was known to be a bit problematic. Leaving investigators to decide the radio was either off completely or on a low volume. The ultimate cause of the crash was issues with communications. The radio shouldn't have been able to be turned off or turned down. Modern GSMR radios in British trains only go off when the cab is switched off or when the cab is live, the MCB related to it is tripped. Because as long as it can receive signal, the GSMR units can still receive an emergency call even if a headcode isn't registered. The designer of the carriages were also concerned, but it's hardly surprising as by 2002 they were a rather antiquated design based on trains built in the 1970s. The Class 80s replacements, the Class 3000, are much better apparently. So, it's scale time. It's going to be a two on my scale. This is what I've got for my root cause analysis card. Do you agree? Let me know in the comments below. This is a Plainly Full Production. All videos on the channel Creative Commons Attribution ShareAlike License. Plainly Full videos produced by me, John, in the currently mild corner of Sevenoaks, UK. As always, I have to say is thank you very much for watching. And Mr. Music, play us out, please. >> [music] [music] >> Mhm.