CARBON & COSTS
EDGING
AHEAD

Rail travel’s lesser carbon footprint gives it an edge versus air, but a lack of competition on key routes has meant fares are often higher

By Andy Hoskins (Published 27 July 2023)

Not so long ago the decisions as to whether a business trip was made by air or by rail hinged, more or less, on three elements: cost, time and productivity. But now, in a world in which sustainability concerns are the focus of many corporate travel programmes, carbon footprint has entered the equation.

In fact, rail’s significantly lesser impact on the environment compared to air travel is its greatest appeal for many corporates right now. Companies such as EY and Salesforce are among the many influential organisations introducing policies and procedures designed to shift travellers from planes to trains – where appropriate – in order to reduce their carbon footprint.

In its Ground Monitor 2023-2024 report, American Express Global Business Travel said that where rail offers a viable alternative to air, its clients, together with those of its Egencia division, have achieved 90 per cent reductions in emissions by making the modal shift from plane to train.

But for all the talk of corporate adoption, there remain several barriers in place, chief among them its ‘bookability’ – something that travel associations hope the EU’s Multimodal Digital Mobility Services (MDMS) regulation will address – and rail travel’s cost.

It is far from uncommon to see train fares compare unfavourably with air fares on the same route, giving weight to the argument touted by some that being green sometimes means spending more. However, with more competition arriving on Europe’s rail network and airfares rising sharply in the last year, there is evidence of a discernible shift in how costs measure up.

“Beyond issues caused by fragmentation, cost may be a significant barrier to adoption as client conversations in Europe and North America confirm,” reports Amex GBT's consulting division. “Even where the benefits of taking the train are clear, rail can be expensive versus air, particularly on routes where the rail operator does not face competition.”

Fares are high…

In July this year, Greenpeace revealed findings of a study of rail and air fares on 112 European routes. On 71 per cent of the city pairs rail emerged as the more expensive option and, on average, rail trips were twice as expensive as flying. The UK, Spain, Belgium, France and Italy were identified as the nations with the most expensive train fares relative to air travel.

The report noted that: “In Central and Eastern Europe, trains are more often cheaper in relation to flights than in Western Europe. However, train frequency, speed, connections and services are usually worse than in western countries.”

On some of what the report called the “most effective” train routes in Europe – including Amsterdam-London, London-Edinburgh and Paris-Toulouse – its research found flights remain much cheaper.

The Greenpeace report concluded: “Thanks to the outrageous subsidies that airlines benefit from, they can offer unreasonably low prices – low-cost airlines are at the forefront with their aggressive pricing strategies,” the report concluded. “But these cheap tickets come at a high cost to the planet and its inhabitants, including their employees, airport neighbours, customers, people affected by extreme weather events or biodiversity in general.”

Among a long list of demands from Greenpeace were calls for a ban on short-haul flights where there is a reasonable train alternative – as has been tested in France – and the introduction of an integrated EU-wide ticketing and payment system.

Meanwhile, research conducted by consumer right groups Which? found that eight of the ten UK routes it looked at were cheaper by air than by rail, with train fares on average 49 per cent more expensive. At the same time, carbon emissions per air passenger were six times higher than those of rail passengers on average.

Average air and train fares were at the closest in the study for travel between London and Edinburgh, where new operator Lumo added to the competition with the launch of new services between the capitals in September 2021.

…but competition brings fares down

As Amex GBT points out, in 2019 rail accounted for one-third of all trips between London and Edinburgh. By 2022, rail's share was up to more than half, at 54 per cent, which was attributed more competitive fares but also rail’s increasingly important carbon credentials. The TMC declared that “competition is working”.

In the decade since competition arrived on the Rome-Milan rail route, the number of rail passengers quadrupled, notes Amex GBT, and more than two-thirds of people travelling between the cities now take the rain. And in France, train fares have fallen by seven per cent on average since the arrival of competing operators between Paris and Lyon.

In Spain, meanwhile, a study conducted earlier this year by Phocuswright and data intelligence provider Mabrian also showed how new rail entrants helped level things up on one of the country’s top business routes, Barcelona to Madrid.

“Train operators have been expanding their offerings and attracting more passengers, posing a threat to the sustainability and future viability of the air shuttle between Barcelona and Madrid,” reported Mabrian.

Its report notes that three airlines – Iberia, Vueling and Air Europa – together provide 16 daily flights between the cities on average. Meanwhile, four train companies – Renfe’s AVE and AVLO, SNCF’s Ouigo and Trenitalia’s Iryo – provide, on average, 21 daily services.

France’s Ouigo entered the fray in May 2021 and was followed in November by Trenitalia’s Iryo. Since then, average train fares between the cities have dropped 43 per cent and ticket sales have quadrupled. Both operators are planning to expand to other high-speed routes in Spain, such as Madrid-Valencia and Madrid-Seville-Malaga.

Levelling up
How air and rail compare on a key route in Spain

(*includes additional 30 mins at each end for journey to/from the airport plus time spent at airport)

Mabrian’s data shows that total journey time between city centres is less by rail and that average fares are broadly similar. The key difference is that flying between the cities emits considerably more carbon emissions per passenger than travelling by rail.

The company’s sales and marketing director, Carlos Cendra, says the ban on short-haul flights on a handful of particular routes imposed by the French government earlier this year on environmental grounds “is a very significant precedent in Europe for reconsidering the efficiency of short-haul air travel”.

Cendra continues: “In the short term, Spain's extensive high-speed rail infrastructure can help simulate such restrictions. Now we must determine whether rail capacity could expand sufficiently to meet the total demand for these trips."

EMISSIONS INCONSISTENCIES

Train travel is kinder on the environment than air travel, but just how much kinder is up for debate and there are often significant discrepancies when it comes to calculating carbon emissions per passenger.

The data provided above by Mabrian suggests carbon emissions per passenger for flights between Barcelona and Madrid are only twice those of a passenger travelling by train between the cities.

Lumo, meanwhile, which operates train services between London and Edinburgh, claims flying between the cities emits 22 times more emissions than a rail journey (149kg CO2e per passenger for a flight versus 6.8kg CO2e by rail). It also states that, on average, travelling by air emits 17 times more emissions per passenger than travelling by rail.

A study conducted earlier this year, meanwhile, found that a rail journey between London and Edinburgh creates 13 times less emissions than flying.

In the UK, the Rail Delivery Group (RDG) has appointed sustainable travel specialist Thrust Carbon and rail data firm Fabrik to create a rail carbon calculator offering “detailed, accurate and reliable data” on the CO2 emissions of UK rail journeys at the point of sale.

To mark the announcement, Thrust Carbon released data on rail travel between the English and Scottish capitals. By analysing how trains are powered, journey distance, carriage layout and occupancy, it found that that a rail journey from London King’s Cross station to Edinburgh Waverley station produced 12.5kg CO2e of emissions per passenger. This figure for the train journey compared to 165kg CO2e per passenger for an equivalent flight (13 times higher) and 136.4kg CO2e if the journey was completed by car (more than 10 times higher).

Kit Brennan, head of product at Thrust Carbon, added: “Businesses always knew that rail was the greenest way to travel, but for the first time we now know just how much greener it is. This is the first time we’ve combined such granular data on occupancy, journey distance, carriage layout and a number of other factors to provide an accurate and reliable figure for greenhouse gas emissions.”