Tires

Pollution from tires can be 1,000 times worse car exhaust according to Emissions Analytics

When tires come into contact with the road surface, they release pollutants.

Photo by Getty Images

Emissions Analytics, an independent global testing and data company that studies real-world emissions and fuel efficiency for passenger and commercial vehicles, has found that pollution from tire wear can be 1,000 times worse than what comes out of a vehicle's exhaust pipe.

Unlike exhaust pollution, tire and brake pollution is mostly unregulated. These other types of pollutants from a vehicle are referred to as non-exhaust emissions (NEE). According to Emissions Analytics, NEEs are currently defined as "particles released into the air from brake wear, tyre wear, road surface wear and resuspension of road dust during on-road vehicle usage."

Emissions Analytics says that NEEs are believed to constitute the majority of primary particulate matter from road transport. The 2019 report "Non-Exhaust Emissions from Road Traffic" by the United Kingdom Government's Air Quality Expert Group recommended that NEEs be recognized as a major source of pollution.

To determine what the effect of NEEs are on the environment, Emission Analytics conducted initial tire wear testing. They used a hatchback running on new, properly inflated tires and found that the car emitted 5.8 grams per kilometer of particles.

Current exhaust emission limits in the U.K. are 4.5 milligrams per kilometer. That means that the team found that NEEs pollute the environment 1,000 times more than the maximum allowable exhaust amount.

Emissions Analytics noted, along with the results, that this number could be even higher if the vehicle's tires were under inflated or if the road surfaces were rougher.

Richard Lofthouse, Senior Researcher at Emissions Analytics expressed concern regarding the findings, "It's time to consider not just what comes out of a car's exhaust pipe but particle pollution from tyre and brake wear. Our initial tests reveal that there can be a shocking amount of particle pollution from tires – 1,000 times worse than emissions from a car's exhaust. What is even more frightening is that while exhaust emissions have been tightly regulated for many years, tyre wear is totally unregulated – and with the increasing growth in sales of heavier SUVs and battery-powered electric cars, non-exhaust emissions are a very serious problem."

There are ways to reduce the effect of NEEs coming from your vehicle, including making sure that your tires are properly inflated, and reduce the weight of your vehicle as much as possible (don't carry around excess weight).

Trending News

 
 

The new Maps+ app will allow drivers to use a navigation system who had not previously purchased navigation.

Photo courtesy of General Motors

General Motors is giving its vehicles a new navigation solution. Maps+, an in-vehicle, app-based way-finding program, will begin rolling out to approximately 900,000 model year 2018 and newer Chevrolet, Buick, GMC and Cadillac vehicles by the end of 2021, starting on April 30.

"We know customers want an easy and convenient in-vehicle experience that improves over time," said Santiago Chamorro, GM vice president of Global Connected Services. "We listened to customer feedback and developed a product that works seamlessly with our current infotainment systems and provides a highly personalized experience that will iterate throughout the lifetime of the vehicle."

Maps+ was developed in partnership with Mapbox. The new app replaces navigation functionality in already-purchased vehicles that had purchased a navigation system. It provides navigation functionality to drivers of vehicles that did not opt for navigation at the onset.

The new application features Alexa build-in voice control that allows users to listen to music or podcasts using the system's integrated audio apps. A search box allows users to find points of interest, shops, restaurants, parking, and more. There is also embedded speed alert, low fuel recognition, predictive keyboard entry, day and night modes, category shortcuts, rear-time traffic routing, and dynamic mapping capability.

"Our obsession is the driver," said Peter Sirota, CEO of Mapbox. "The map is the canvas for providing the driver with a delightful, easy-to-use experience. From discovering new places to avoiding traffic on your commute to paying at the pump or the plug, Maps+ lays the foundation for an excellent navigation experience. We are excited to build upon this with GM to continue to drive adoption."

GM and Mapbox are committed to continuing Maps+ post-launch, developing new features and improvements based on feedback and metrics.

Maps+ will be available on select vehicles through Connected Vehicle, Premium and App Access subscription plans. Current eligible Chevrolet, Buick, GMC and Cadillac owners will be notified when their vehicle is eligible for Maps+.

Trending News

 
 

New driver assist technology is coming to the Lexus lineup later this year.

Photo courtesy of Lexus

New Lexus Teammate driver assistance technology will debut on the 2022 Lexus LS 500h later this year. Its availability is constrained to all-wheel drive models.

The technology was developed based on the Mobility Teammate Concept. This automated driving concept is unique to Toyota sough to enhance communication between drivers and cars, "enabling them to reach out to each other for mutual assistance". The concept sees cars and humans interacting and partnering rather than having automation take over for drivers. This approach allows drivers to enjoy the experience of driving but allowing the vehicle to take over some functions of driver's duties at times. In this way, the tech works as both guardian and chauffeur.

2022 Lexus The company's flagship sedan will get the technology first.Photo courtesy of Lexus

2022 Lexus LS 500h

On the 2022 Lexus 500h, Lexus Teammate will offer two functions: Advanced Drive and Advanced Park.

Advanced Drive is design to "accurately detect driving conditions to plan and execute acceleration, braking, and steering commands to maintain the vehicle within the lane, follow other vehicles, change lanes, navigate certain interchanges and traffic jams and overtake slower vehicles." It's a Level 2 functionality that "allows for driving on limited-access highways with partial hands-free, eyes-on-the-road operation".

This description makes it sound a lot like the suite of lane keeping, lane centering, and adaptive cruise control technology that Hyundai offers rather than true Level 3 technology that General Motors's Super Cruise delivers.

Lexus will show operation of the technology on a screen with information displayed like this.Photo courtesy of Lexus

Advanced Park operates similar to how the Genesis GV80's hands-free parking assist technology works. The Lexus tech automatically controls steering, acceleration, braking, and gear changes with parallel parking or backing into a parking space. It uses a combination of 360-degree sensing technologies and a bird's eye view display to perform the task while allowing the driver to monitor progress.

"We are very proud of Lexus Teammate, which is the culmination of five years of close collaboration between our technical centers in Japan and the US. We conducted simultaneous development and rigorous testing in both markets with the goal of achieving industry-leading advanced driver assistance functionality," says Derek Caveney, executive engineer at Toyota Motor North America's Integrated Vehicle Systems team.

Trending News