Rubber tracks:
what’s left on the road after every trip Automatic translate

For decades, the environmental debate around automobiles revolved around the exhaust pipe. Catalytic converters, particulate filters, emission standards — all focused on exhaust. But while engineers perfected exhaust cleaning systems, pollution didn’t disappear — it simply migrated downward, under the wheels. Tire abrasion particulate matter has become one of the most complex and poorly understood forms of urban pollution.

Every wheel revolution leaves an invisible mark on the asphalt. Rubber fragments settle on the shoulders, are washed into sewers by rainstorms, and end up in groundwater. A suspension of rubber dust hangs over busy roads — invisible, yet measurable.

The tire contains a complex mixture of natural rubber, synthetic polymers, carbon black, and silica. Vulcanization binds these components into a strong structure that provides traction on wet asphalt. These components also become toxic pollutants when released into the soil — heavy metals from worn tread, such as zinc and lead, contaminate aquatic ecosystems.

The scale is easy to calculate: a car loses tens of milligrams of rubber for every kilometer driven. In a large city, this translates into tons of microplastics daily. And this figure is directly related to one parameter: the vehicle’s weight.

The weight of modern cars is steadily increasing. Massive batteries make electric cars significantly heavier than their internal combustion engine counterparts, while gasoline SUVs gain weight due to thick sound insulation and an abundance of electronics. When deciding to buy a heavy-duty pickup truck or Newstar in Yekaterinburg , consumers typically prioritize the dynamics and comfort of the interior — the increased axle load is often overlooked. The curb weight easily exceeds two thousand kilograms, and those extra hundreds of kilograms literally press the tires into the road surface.

"The contact patch deforms more than usual. Rolling resistance increases, the rubber heats up faster, and the overheated compound loses structural rigidity during maneuvering. This isn’t a hypothesis — it’s mechanics."

Physics of deformation and torque

An internal combustion engine gradually accelerates as the crankshaft speed increases, and the driver intuitively senses this pause. An electric motor is completely free of this pause — maximum torque arrives within the first millisecond of pressing the accelerator. A sudden jerk causes microscopic slippage of the tread: the force of static friction instantly transforms into sliding friction. Electronics dampen the obvious slippage, but microscopic shifts in the compound blocks continue to continuously wear down the rubber.

Regenerative braking systems add stress. Releasing the accelerator causes powerful deceleration — the electric motor becomes a generator. The wheels experience strong reverse drag, and frequent cycles of hard acceleration and hard braking wear the tires in two opposite directions at once. The cords experience alternating tension, the rubber blocks deform forward and back — material fatigue sets in faster than standard.

The Economy of Rapid Attrition

Conventional tires on a light sedan might last for 60,000 kilometers. A powerful, heavy electric car can wear out a similar set in 25,000. Tires need to be replaced twice as often, and electric vehicle tires themselves are more expensive — their sidewalls are reinforced to support the weight of the batteries, and the compound is optimized to reduce acoustic noise.

Electricity savings are partially offset by regular tire service costs. The lifespan of consumables decreases proportionally with increasing engine power, and this isn’t just an abstraction — it’s a line item in a car owner’s budget.

Engineering compromises in compound creation

Tire manufacturers found themselves caught between conflicting demands. Hard rubber lasts a long time, but offers poor grip on cold, wet asphalt. Soft rubber provides excellent traction during maneuvering, but literally disappears before your eyes under the weight of the vehicle’s body. Between these extremes lies the entire spectrum of modern tire chemistry.

Chemists are experimenting with the molecular structure of synthetic polymers, adding special resins and natural oils that maintain elasticity at low temperatures and resist tearing under peak starting loads. The tread depth is shallower to eliminate excessive movement of the rubber blocks during acceleration. Aramid fibers in the carcass protect the sidewalls from punctures and help the tire maintain its shape under heavy loads.

"Wide tires create air resistance, while narrow tires concentrate weight in a smaller area. Manufacturers are forced to choose between aerodynamics and tread life."

How certification standards are catching up with reality

New environmental regulations for the first time set limits on particulate matter from brake pads and tires — not just from exhaust pipes. Measuring this emission is becoming a mandatory procedure for certifying new vehicles. The car is placed in a closed chamber with rolling drums, high-precision scales record the tire weight before and after test cycles, and air filters capture dust particles of 10 and 2.5 micrometers.

The problem is that you can only collect what remains in the chamber. Billions of microscopic fragments already scattered across city streets cannot be physically collected — water carries them endlessly into sewers.

What a driver can do right now

Driving style directly determines tire life. Smooth accelerator pedal operation reduces microslip, moderate acceleration reduces compound heating, and careful cornering preserves the tire’s shoulder area. Eco modes, found in most modern electric cars, artificially limit peak torque output — resulting in slower tread wear and more efficient battery use.

The most accessible tool is pressure monitoring. A deflated tire wears along the outer edges, while an overinflated tire wears along the center. Correct pressure ensures even contact between the entire tire and the road surface and distributes the vehicle’s weight without concentrating stress in one spot. This simple procedure, which takes two minutes at any gas station, significantly extends tire life more than any special compound.