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The weighty debate about electric vehicles

One question always comes to mind when EVs are attacked because of their weightiness. Why are we only hearing this now? Photo by Michael Fousert/Pexels

For the past few weeks, I’ve been focusing on electric vehicles (EVs), examining fallacies being embraced by those who don’t believe we can build a cleaner future. This is a key battleground for fossil fuel interests and people who dismiss the seriousness of the climate emergency. Last month, I focused on the reactionary rhetoric impeding the adoption of EVs. This week, I expose false claims about those heavy EVs.

A friend recently expressed concern about electric vehicles destroying our roads and bridges. She’d read this in a Globe and Mail article and thought it made sense because EVs are so heavy. This wasn’t the first time I’d heard EVs were going to ruin our roads, so I was quick to point out that the top-selling vehicles in Canada are, in fact, much heavier than the top-selling EV, the Tesla Model Y.

Depending on the options, the Model Y’s curb weight is between 1,900 and 2,000 kilograms. The three most popular vehicles in Canada are the Ford F-Series, Chevy Silverado and Dodge Ram pickups. The curb weight of these trucks is between 1,800 kilograms for the six-cylinder F-150 and 3,400 kilograms for the Silverado 3500 HD. The Nissan Leaf is one of the lightest EVs on the Canadian market, weighing in at just under 1,600 kilograms.

One question always comes to mind when EVs are attacked because of their weightiness. Why are we only hearing this now? The Globe and Mail’s Eric Reguly is suddenly calling for a weight-based tax on all heavy vehicles, but his end game is to discourage EV buyers. The timing has more to do with a widespread media campaign aimed at resisting the inevitable transition to cleaner and more efficient transportation technology.

There’s no denying an EV is going to weigh more than an equivalent model of gas-powered car. For example, the Volvo XC40 weighs 2,280 kilograms while the electric version, XC40 Recharge, weighs 2,520 kilograms. Will that extra 240 kilos have a big impact on our roads? If so, perhaps we should have a weight tax on the occupants of vehicles as well.

If you buy a new gas-powered car because you’ve fallen for the false narrative that #EVs are destroying our roads, then you’re simply making a bad decision, writes Rob Miller @winexus #ClimateChange #renewables #cdnpoli #StopFossilFuels

In the 1950s, the American Association of State Highway Officials (AASHO) performed testing to determine how much road damage was being caused by trucks. The report produced the generalized fourth power law to compare road damage caused by vehicles of different weights.

Based on the formula derived from AASHO’s results, an electric XC40 is roughly 1.5 times more damaging to the road than a gas-powered XC40. The heaviest Silverado is five times harder on our roads than the XC40.

Inside Science concludes heavy trucks are far more damaging to roads than any passenger vehicle. In general, a 40-tonne semi with eight axles is over 600 times more damaging to roads than an average two-tonne passenger vehicle.

Imagine a day when everyone owns an EV except for a few antique collectors. Our roads will be free of those 30,000-kilogram tanker trucks that bring gasoline on a daily or weekly basis to the nearly 12,000 service stations across Canada. That will certainly take a load off our pavement, but action movie directors will have to find something else to jackknife and explode in the midst of a car chase.

Perhaps Reguly is onto something. Lost revenue from dwindling gasoline taxes could be replaced with a weight tax on vehicles. The cost impact on EVs would be minimal if the tax is calculated according to each vehicle’s potential to cause road damage and it might create some motivation for people to purchase smaller vehicles. EV subsidies could also be used to incentivize lighter vehicles by scaling them to favour smaller, lighter and lower-cost EVs.

The misguided concerns over EV weight don’t end with the road damage con job. Apparently, extra tire wear is going to fill our skies with nanoparticles. A report by Euan McTurk commissioned by the Royal Automobile Club (RAC) in the U.K. points out errors in the research that spawned this misinformation campaign.

McTurk explains the EV tire wear suggested in Emissions Analytics’ research would result in EV owners having to replace their tires every couple thousand kilometres. Emissions Analytics’ results were possibly skewed by existing particles on the test track being stirred up during the experiment.

The RAC report also debunks the myth of heavy EVs contributing to more air pollution from brake pad particulate. Regenerative braking in EVs actually reduces brake pad wear.

What about those heavy EVs causing more injuries and fatalities? According to the International Transport Forum profile of road safety in Canada, the leading factors contributing to crash fatalities in 2023 were speeding, drinking and driving, drug use, cellphones and fatigue. Perhaps it would be more effective to address the factors leading to accidents rather than conclude we mustn’t drive EVs.

There are numerous studies that demonstrate large SUVs and pickups account for increases in severity of vehicle-crash outcomes. However, a study of EV crashes in Norway between 2011 and 2018 showed no statistically significant increase in the severity of EV crashes versus internal combustion engine vehicles.

Research does confirm cyclists and pedestrians are more likely to be killed or severely injured when hit by a large vehicle and the Norway study revealed that EVs increase the risk of these types of accidents occurring. This is likely due to the quietness of EVs. But as an avid cyclist and small car owner, I’m far more concerned about being crushed under the grill of an F-150 than being hit by a battery-laden Chevy Bolt.

In spite of all these weighty issues, selecting a means of transportation ultimately comes down to personal choice. If you decide not to own a car and get by with cycling, transit and the occasional Uber, then you’re definitely making our world a better place.

Maybe you believe that SUVs are harmful regardless of the fuel they run on and elect to own a small EV like the Nissan Leaf. That’s also a thoughtful and forward-looking decision. Even if you love your SUV and decide to go electric, it’s still a step in the right direction and a commitment to help reduce harmful tailpipe emissions.

But if you buy a new gas-powered car because you’ve fallen for the false narrative that EVs are destroying our roads, then you’re simply making a bad decision. That vehicle will be pumping out CO2 and other pollutants for another 20 years.

Going electric is just one of many decisions each of us can make to help bring a cleaner future into the present. It’s OK to focus on other solutions or actions first, but 20 years from now, young people are going to look at you with disdain if you’re driving around in a noisy SUV with smoke trailing behind it. They’re the ones who have the most to lose when millions of people continue to make poor choices.

Rob Miller is a retired systems engineer, formerly with General Dynamics Canada, who now volunteers with the Calgary Climate Hub and writes on behalf of Eco-Elders for Climate Action, but any opinions expressed in his work are his own.

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