Rail still safer than road during Covid-19
Rail safety experts worry that people may be assuming the roads offer a less risky alternative during the pandemic, when in fact trains are safer and greener.
Analysis by the rail safety body has shown the risk of contracting Covid-19 while travelling by train is about 1 in 11,000 journeys. This is equivalent to a chance of less than 0.01%, based on an hour-long train journey in a carriage with no social distancing or face coverings.
The report also shows that the risk more than halves if passengers wear a face covering. These have been mandatory when travelling by train since June, unless exempt.
On safety alone, for an individual traveller per kilometre travelled, the car is 25 times less safe than rail. Cycling is 403 times, walking is 456 times, and travelling by motorcycle is 1,620 times less safe.
When the effect of the virus is taken into account and compared against the average road safety risk, the risks are almost the same (road is 1.14 times the risk of rail). Across all transport modes risks of catching the virus are very low, and certainly tolerable. Experts accept that most people will want to use a combination of different modes of transport to get around.
The infection risk findings have now been published by RSSB and verified by the Chief Scientific Adviser’s team at Department for Transport in collaboration with the Defence Science and Technology Laboratory.*
Public transport had been perceived as an infection hotspot due to the vast number of people being in a close proximity. However, research is challenging this, showing that passengers are not as prone to infection as previously assumed, certainly not given the current underlying national infection rates, and people generally conforming with government Covid-19 guidelines.
To analyse the risk, RSSB’s model took a typical passenger journey focussing on the time spent waiting on platforms, boarding and alighting, and the time spent on the train itself.
Researchers then worked with crowd simulation software by Crowd Dynamics, combining data from train operator LNER and infection risk data from the Office of National Statistics (ONS) to get informed estimates of the risk.
The work forms part of a bigger programme of work led by RSSB to help policy makers understand the relationships between rail’s contribution to economic growth and the risks of infection by encouraging more passengers to use train services.
While some risks identified are obviously higher than if there were no virus at all, RSSB believes they are small enough for people to be able to use trains for both work and leisure with no major concerns. That is provided passengers adhere to government instructions on the use of face coverings.
RSSB’s Director of System Safety and Health, Ali Chegini, said:
“As more people return to schools and offices over the next few weeks, people rightly want to feel confident travelling by train. Our analysis suggests going by road won’t offer increased level of overall safety, so the virus shouldn’t influence whether or not people choose to travel by train.
“In a world with no virus, the risk would be even lower, but our data shows that even with the virus still present in the community, the risk is low enough and tolerable.
“People who rely on trains for their livelihoods, education and leisure can travel safely, following guidance from the train operators, and wearing a face covering unless exempt.”
Experts at RSSB have also emphasised that this evaluation could change as new information becomes available, or if the overall risk of infection across the country were to change. Further work is being undertaken on different scenarios involving different trains and will be released as soon as it’s available. This could lead to these initial figures being revised.
RSSB has recently joined an alliance of partners called Emergent Alliance, formed by organisations from all industries who have pledged to share data and expertise to collaboratively build the economic resilience and innovation of GB industries for a better tomorrow and support recovery from the Covid-19 outbreak.
The analysis described in this story was correct at time of writing. Since then, the infection rate in the community has increased and there has been a substantial increase in cases. This means the assumptions made and the numbers used in the calculation would be different, with an increase in the overall risk. We are in the process of updating the figures and an update will be published on the website shortly.
* This work has been peer reviewed by a team from the Chief Scientific Adviser’s office at DfT and a team from DSTL. While this is not an endorsement or approval of RSSB’s work, it does provide verification. Essentially, it is an independent review to confirm that RSSB’s methodology and assumptions are consistent with the scope and objectives that RSSB set out to address. The conclusion derived from this review confirms that RSSB has followed a correct process and that it was truthful in deriving an answer to the question posed.
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This work has been peer reviewed by a team from the Chief Scientific Adviser’s office at DfT and a team from DSTL. While this is not an endorsement or approval of RSSB’s work, it does provide verification. Essentially, it is an independent review to confirm that RSSB’s methodology and assumptions are consistent with the scope and objectives that RSSB set out to address. The conclusion derived from this review confirms that RSSB has followed a correct process and that it was truthful in deriving an answer to the question posed.
Downloads of the following charts are available:
For an example of the visual presentation of the crowd simulation see:
The full report and summary have been published on the RSSB website:
Analysts calculated the risk of infection per average passenger journey to be:
- Risk of infection without face covering: 1 infection per 11,068 Journeys
- Risk of infection with face covering: 1 infection per 19,765 Journeys
The scenario used in the model was based on a Class 800 carriage and included the following steps:
- Passengers arriving at the station platform and waiting
- Boarding the train
- The train moves for 30 minutes
- 22 people alight and another 22 board at a station
- The train moves again for 30 minutes
- 44 persons alight at the next station
The risk calculation with face coverings took into account research from The Lancet which combined data from 172 observational studies and 44 comparative studies:
Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis
Derek K Chu, Elie A Akl, Stephanie Duda, Karla Solo, Sally Yaacoub, Holger J Schünemann, on behalf of the COVID-19 Systematic Urgent Review, Group Effort (SURGE) study authors, Published Online June 1, 2020, https://doi.org/10.1016/S0140-6736(20)31142-9
The train accident at Carmont, near Stonehaven
We are all still saddened by the train accident near Stonehaven on 12 August which killed three people. The whole rail industry will be focussed on supporting the investigation to establish what went wrong and what needs to improve to ensure railways are even safer. Train accidents are rare, and trains remain one of the safest forms of transport. The data presented and used here is designed to provide a broader context for the comparative safety of road versus rail during the Covid-19 pandemic. But it is not in any way designed to deflect from the accident in Scotland, which has shocked and saddened everybody in rail and beyond. You can read our statement of support on our website here: https://www.rssb.co.uk/Insights-and-News/News/RSSB-statement-following-the-train-accident-at-Stonehaven.
RSSB brings industry together to deliver expertise, solve complex issues and provide the headspace for collaboration, all leading to a better, safer railway.
As a membership-based rail industry body, RSSB includes train and freight operating companies, infrastructure managers, contractors, rolling stock leasing companies and suppliers, and our work involves partnerships and affiliation with academia, government, and many other railways and organisations across the world.
We provide impartial, risk-based analysis and insights to continually improve health, safety and performance. We develop standards, setting engineering and operational requirements for safe interworking and to increase efficiency. We also undertake research and development to enable industry to generate knowledge, technologies and operational solutions that individual players in the rail system could not pursue in isolation.
Together we form an industry support network, so that we all benefit from better safety, sustainability and service, and reduced cost and risk.