The Myth That's Making Traffic Worse
Key Takeaways
- Drivers are heavily subsidised by the public, not marginally, but substantially, yet most people believe the opposite.
- Every credible study that has counted the full costs of driving reaches the same conclusion: the public pays more than drivers do.
- Government budgets make road spending visible and driving subsidies invisible, so the official numbers always tell only part of the story.
- The research that proves drivers are subsidised is written for economists, not the public, and rarely gets translated into language anyone else can use.
- Motoring groups cite budget tables while transport reformers cite academic papers, and in any public debate the budget table wins.
- Most people wildly overestimate government spending on things they donβt like and do not register that road subsidies exist at all.
- Driving subsidy research is fragmented across countries, methodologies, and decades, with no single authoritative source that advocates can point to.
- For many drivers, accepting the subsidy argument threatens not just one belief but an entire framework of values around freedom, taxes, and self-reliance.
- An International Body, such as the OECD, should publish an annual cross-country dataset on driving subsidies, designed for general consumption.
- Fixing the data problem is necessary but not sufficient. Communicating the evidence effectively also requires engaging with the values that make people resistant to it.
What Next?
Do you know how much your government is subsidising driving?
Introduction
Drivers pay their way. That is what many people believe, and it shapes many arguments about transport policy.
When cycling infrastructure is proposed, the objection comes quickly: cyclists don't pay road tax. When public transport subsidies are discussed, the same logic applies: why should drivers fund other people's buses and trains? When road user charges are floated, the reaction is anger: drivers are already a cash cow for government, and this is just another grab.
The belief is widespread, politically powerful, and wrong.
Every credible study that has looked at the full picture reaches the same conclusion: the costs of driving that are borne by the public far exceed the taxes drivers pay. Not marginally, substantially.
Yet the myth persists because government budgets make road spending visible and road subsidies invisible; the research stays locked in journals written for economists, not voters; well-funded motoring groups can point to a budget line and look credible, while the counter-argument requires explaining what an implicit subsidy is.
This debate matters. When driving is subsidised, more people drive. More people driving means more congestion, more pollution, and more political pressure to spend on roads. It also means more people off public transport, which increases subsidies for buses and trains. The myth does not just distort the argument; it makes the underlying problem worse.
This blog examines why the myth is so durable, what sustains it, and what it would take to shift it.
Counting the Full Cost of Driving
Study after study reaches the same conclusion: when all the costs are counted, the public pays far more for driving than drivers do.
A recent Australian study found that just over half (50.18%) of the total costs of the vehicle economy fall on the public. That includes direct government spending and indirect costs such as congestion, pollution, crashes, land use, and publicly funded parking. Drivers cover the remaining 49.82% through vehicle purchases, running costs, and parking fees they pay themselves.
This finding is not unusual. A study published in Ecological Economics calculated the lifetime cost of running a small car at roughly $641,000. Society subsidises about 41% of that figure. Globally, fossil fuel subsidies reached $7 trillion in 2022, equivalent to 7.1% of world GDP. Only 18% of that total comes from explicit subsidies such as undercharging for supply costs. The remaining 82% is implicit: the environmental costs and foregone taxes that governments absorb without ever naming them as subsidies.
The costs that feed these figures include road construction and maintenance, traffic management, highway patrols, parking enforcement, accident response, policing of crashes and vehicle theft, air pollution, road deaths, land consumed by roads and parking and fuel subsidies. However, most of these never appear in a column that gets labelled "road subsidy."
Parking alone illustrates the scale. Donald Shoup, the leading researcher on parking economics, calculated that off-street parking subsidies in the United States reached between $127 billion and $374 billion in 2002. In today's dollars, that figure is closer to $700 billion, and it covers only off-street parking. On-street parking in most cities is free or priced well below its market value.
Drivers are heavily subsidised, not at the margins, but at the core of how the vehicle economy works. The question is why so few people know about it.
Problem 1: Government budgets make driving look cheap
The way governments present their finances is one of the biggest reasons the myth survives.
Open any government budget, and you will find road spending listed clearly: capital projects and maintenance. On the revenue side, you will find fuel taxes, vehicle registration fees, and tolls. The arithmetic looks simple. Drivers pay in. Government spends on roads. Anyone can compare the two columns and reach a conclusion.
The problem is that the comparison is incomplete. Government budgets record explicit costs, the money that flows through the Treasury. They do not record implicit costs: the value of land occupied by roads and parking, the health costs of air pollution absorbed by the public health system, the economic cost of congestion and the foregone revenue from underpriced on-street parking. These costs do not appear on a budget line.
This is not simply a communication failure. In my experience working in transport policy, many senior officials within Treasury departments do not fully understand the subsidy picture. Because the implicit costs are invisible to them, they have no reason to factor them into their advice. The result is that Treasury, the part of government most people assume has the complete financial picture, often acts as one of the strongest internal advocates for road spending, without recognising the full bill it creates.
Motoring groups take the budget numbers, run the comparison, and conclude that drivers are net contributors who are being shortchanged by congestion and underinvestment. The argument looks credible because it uses official figures. It just uses an incomplete set of them.
Until governments change how they account for the costs of driving, making implicit subsidies as visible as explicit spending, the budget itself will keep telling the wrong story.
Problem 2: The research is written for economists, not everyday people
The evidence that drivers are subsidised exists. It is consistent, and spans multiple countries and decades. It is also almost entirely unreadable to anyone who did not study economics.
The studies that calculate driving subsidies are produced by economists, published in academic journals, and written for technical audiences. They use terms like welfare economics, efficient pricing, consumer surplus, and externalities. They distinguish between explicit and implicit subsidies in ways that assume the reader already knows what both mean. They present findings in ways that are precise but impenetrable.
This is not a criticism of the researchers. Technical rigour matters, and academic journals are the right place for it. But the findings are not translated into plain language, so they do not reach the people who form opinions, write columns, brief ministers, or vote.
The public has no framework for these concepts. Most people have never encountered the idea that a subsidy can be implicit, that when a government provides free parking, or fails to charge for road congestion, it is subsidising driving just as surely as if it wrote a cheque. Without that concept, the whole argument is impossible to follow.
Making the evidence matter requires making it accessible. That means explaining what the research finds and why it matters, in language that does not require an economics degree to understand.
Problem 3: The advocacy fight is not a fair one
The public debate about driving costs is a contest between organisations with very different resources, audiences, and relationships with the media.
On one side are motoring groups. In most countries, these are well-funded membership organisations with professional communications teams, established relationships with journalists, and a clear brief: represent drivers and push back against anything that looks like an additional cost or restriction. They are good at their job. They speak in plain language, they respond quickly to news, and they know how to make a budget comparison sound like common sense.
On the other side are public transport peak bodies, cycling advocates, and transport reform groups. Public transport bodies are typically government-funded, which constrains what they can say and who they can say it to. Their communications are aimed at professionals and policymakers, not the general public or the press. Cycling groups tend to operate on tight budgets with limited capacity for sustained public campaigns. Transport reform organisations are often small and specialist.
Motoring groups can cite government budget figures, official, simple, and available to anyone. Their opponents need to cite academic studies filled with economic terminology that requires explanation before it can even be understood.
Put yourself in the position of a journalist on deadline, or a driver who has just heard that a new charge is being proposed. One side offers a clear number from a government document. The other offers a concept from a journal article.
This is why, without organisations that can translate the research, sustain a public presence, and compete in the same media environment as motoring groups, the better argument will keep losing to the simpler one.
Problem 4: People have little idea what government actually spends
The driving subsidy debate does not happen in a vacuum. It happens against a backdrop of widespread public confusion about government spending in general, and that confusion makes the myth much harder to correct.
Earlier in my career, I saw research on public attitudes to public transport fares and subsidies. The majority of people surveyed believed that public transport made a profit. In reality, cost recovery was running at around 25%.
This is not unusual. Surveys consistently show that people overestimate government spending on things they distrust or resent, and underestimate it on things they use and value. Road subsidies get underestimated or not considered at all. The result is a distorted baseline against which any new argument about transport costs has to be made.
Problem 5: There is no single place to find the numbers
Even for people who want to engage seriously with the evidence, finding it is harder than it should be.
The research on driving subsidies is fragmented. Studies are produced by different researchers, in different countries, using different methodologies, at different points in time. Some focus on congestion costs. Some focus on fossil fuel subsidies. Some focus on parking. Some attempt a comprehensive calculation across all cost categories. Each is valuable. None of them adds up to a resource that a journalist or an advocate can point to and say: here is the current figure, for this country, covering all the costs.
This fragmentation creates several problems at once. Studies date quickly. When the most accessible numbers are decades old, it is easy for critics to dismiss them. Methodology varies, creating inconsistencies and doubt on the overall picture, even when every individual study points in the same direction. And because no single authoritative source exists, advocates have to assemble the case from multiple papers, which takes time, requires expertise, and produces arguments that are harder to communicate than a single clear figure.
Compare this to the resources available to motoring advocates. They do not need to assemble a case. The government budget is published every year, in every country, and it always shows the same simple comparison between road spending and driver tax revenues. It is current, official, and easy to use.
The absence of a reliable, regularly updated, cross-country dataset on driving subsidies is a structural disadvantage for everyone trying to make the evidence count in public debate.
Problem 6: The facts threaten more than just an opinion
For many people who argue that drivers pay their way, the belief is not just a view about transport economics. It is bound up with a broader set of values about individual freedom, personal responsibility, and the proper limits of taxation.
If you believe that government taxes too much and spends badly, and you also believe that drivers are net contributors who are being shortchanged, then your actions, your beliefs, and your values all point in the same direction. Driving is an expression of freedom. Fuel tax is evidence of government overreach. Congestion is proof that road spending is too low, not that driving is underpriced. Everything fits.
Telling someone in that position that driving is heavily subsidised does not just correct a factual error. It threatens the entire framework. If driving is subsidised, then the taxes that fund it are not an overreach; they are insufficient. If the public is bearing more than half the cost of the vehicle economy, then driving is not an expression of individual self-sufficiency; it is a large welfare program. If road spending is subsidised, then building more roads is the opposite of smaller government and lower taxes.
This is cognitive dissonance in its most resistant form. The discomfort is not about being wrong on a single point. It is about what being wrong on that point implies for everything else. The natural response is not to update the belief but to find reasons to reject the evidence, to question the methodology, dispute the concept of an implicit subsidy, or simply conclude that the economists have got it wrong and the budget figures have got it right.
This means that presenting evidence alone is rarely sufficient. People who hold these views are motivated to interpret the facts in a particular way. Reaching them requires engaging with the values underneath the argument.
The Way Forward
The six problems identified in this blog are not independent. They reinforce each other. Fragmented research stays fragmented partly because no institution has taken responsibility for consolidating it. Cognitive dissonance is harder to shift when the evidence is inaccessible. The advocacy imbalance persists because motoring groups have a clear, current, official source to point to and their opponents do not.
What is needed is a coordinated response that addresses the structural weaknesses all at once.
The most important single step would be for an international body, the OECD is one obvious candidate, to take ownership of the data problem. This means two things in practice.
First, the OECD should develop guidance for national governments on accounting for driving subsidies in public budgets so that implicit subsidies become as visible in official documents as explicit road spending. When the budget itself tells a more complete story, the argument that the budget proves drivers pay their way loses a key foundation.
Second, the OECD should publish an annual dataset on driving subsidies, broken down by country and covering all major cost categories, updated each year. A standing publication, released with a communications strategy behind it, press releases, accessible summaries, social media, designed to reach journalists, policymakers and the public, not just researchers.
Motoring groups win arguments partly because they cite current official figures. Transport reformers lose them partly because they cite ageing studies from different countries using different methods. An annual OECD dataset would change that balance. It would give advocates a single, credible, up-to-date source that could be cited alongside a government budget.
The values dimension cannot be ignored. The audiences most resistant to the evidence are holding a set of values that the evidence appears to contradict. Communicating effectively with those audiences means engaging with the values argument and making the case that reducing driving subsidies is consistent with lower taxes, better use of public money, and greater individual choice.
What has been missing is the institutional infrastructure to make those facts matter in public life. Building that infrastructure is a policy priority.
Conclusion
The driver delusion persists because the systems that should correct it, government budgets, public discourse, and advocacy, all point in the wrong direction at once.
Government budgets make road spending visible and road subsidies invisible. Economic research stays locked inside journals that the public never reads. Well-funded motoring groups cite the budget numbers and look credible. Under-resourced cycling and public transport advocates are left to cite the economics papers.
The result is a myth that is easy to believe, and that does real damage. It poisons the case for road user charging. It generates hostility to cycling infrastructure. It sustains demand for more road spending. And it hides the truth that the public is already footing a very large bill for driving, whether they know it or not.
The good news is that the facts are well established. Study after study across multiple countries reaches the same conclusion: the costs of driving borne by the public far exceed the taxes drivers pay.
What is missing is an institution willing to make that finding visible, year after year, in a form that journalists, policymakers, and the public can actually use. An organisation like the OECD is well-placed to fill that gap. Consistent annual data, presented plainly and backed by a communications strategy, would change what is possible in the public debate.
Until that happens, advocates for better transport will keep fighting with one hand tied behind their backs, arguing against a myth that the machinery of public finance helps to reproduce.