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As more private vehicles than ever hit crowded freeways and spend more time on the road, more of them get stuck in traffic. Over 90% of American households have access to at least one car, so chances are you’ve been caught in a gridlock a few times before. What causes congested traffic — especially the jams that seem to come from nowhere? Is traffic getting worse? How much time do we spend in traffic, anyway? These seven facts about traffic will give you something to think about when the freeway slows down to a crawl.

Aerial view of a traffic jam during rush hours.
Credit: Jens Herrndorff/ Unsplash

The Average American Lost 51 Hours in Traffic in 2022

According to the traffic analytics firm INRIX, Americans spent, on average, 51 hours stuck in traffic in 2022. That may seem like a lot, but the United Kingdom had it worse: Brits lost 80 hours on average. Americans’ traffic delays also cost an average $546 in fuel costs, INRIX says. All of those numbers are a huge jump from the year before, but that doesn’t mean much, because …

A view of a empty street with no cars during Covid-19 lockdown.
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Traffic Dropped During the COVID-19 Pandemic

With many workers required to stay home at the beginning of the COVID-19 pandemic, fewer cars were on the road, and congestion dropped. The Texas A&M Transportation Institute noted that in 2020, January and February were pretty normal — but in March, after COVID lockdowns started to take effect in much of the country, traffic looked more like it did in the early 1990s. By the fall, traffic had started to creep back up to around 2005 levels.

Even after congestion started to ramp back up, however, the effects of the pandemic lingered. According to INRIX, some major American cities, including New York, Boston, and Philadelphia, still saw decreases in 2022 compared to 2019.

Traffic in downtown Chicago with people, train, car and bus.
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Chicago May Have the Worst Traffic in the U.S.

Unlike some cities, Chicago’s traffic is slightly worse than it was before 2020 — and according to INRIX’s annual global rankings, it’s the most congested city in the United States by a significant margin, with the average commuter spending 155 hours in traffic delays in 2022. On a global scale, it’s nearly tied with London, which INRIX analyzed to be the highest-traffic city in the world.

A woman with a stressed look, sitting in traffic.
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Traffic Really Does Come Out of Nowhere Sometimes

If you drive, chances are you’ve ended up in traffic with no clear cause — there are no accidents or construction, and yet somehow you’re at a total standstill. These are called phantom traffic jams or jamitons, and experts say you can help avoid them by not riding anyone’s bumper.

These jams happen when one driver abruptly slows or brakes, and the next driver slows or stops to avoid a collision. This travels like a wave, usually 100 to 1,000 yards long, even as the drivers at the front of the line return to normal speeds.

The easiest way to prevent phantom traffic jams, according to multiple studies, is to keep about an even distance between the car in front of you and the car behind you — so avoid tailgating, but also keep an eye on your rearview mirror. Giving cars more space to gradually adjust speed won’t completely eliminate phantom jams, but it will make them less likely to occur.

Traffic street light at a city intersection.
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Traffic Lights Used To Be Manually Operated

The first traffic light was gas-powered and installed in London on December 9, 1868, just outside the Houses of Parliament. Automated lights were still several decades away, so the signal had to be manually operated by a police officer 24 hours a day. This first light lasted only a month. While London wouldn’t attempt to have traffic lights again until the city installed automatic ones, other cities adopted manual traffic lights and spent decades staffing them. The first electric light was installed in Cleveland, Ohio, in 1914.

A man on the phone while looking at a scratch on his car door from a fender bender.
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Car Accidents Are More Likely Right After the Daylight Saving Switch

If you’re not a morning person, the days immediately following the switch to daylight saving time — or “spring forward” — might be a struggle, especially that first Monday morning. With so many sleepy drivers on the road, accidents are more likely. The average American’s risk of getting in a car accident rises by around 6% that day, along with an increase in other potentially fatal events such as heart attacks and strokes.

Cars line up at a road during a traffic jam in China.
Credit: China Photos/ Getty Images News via Getty Images

A Traffic Jam in China Lasted More Than a Week

In August 2010, motorists outside Beijing got stuck in a real doozy of a traffic jam, caused by a harrowing conjunction of a construction project and too many cars on an already overburdened freeway. The jam stretched for 60 miles and lasted around 11 days. Some individual cars were stuck on the road for more than five days. Local villagers took advantage of the situation by selling food and water to drivers at a premium, including water bottles marked up to around 10 times their original price. Officials estimated the jam could have lasted a couple of weeks longer, which thankfully did not come to fruition — although major traffic jams continued to be a problem.

Sarah Anne Lloyd
Writer

Sarah Anne Lloyd is a freelance writer whose work covers a bit of everything, including politics, design, the environment, and yoga. Her work has appeared in Curbed, the Seattle Times, the Stranger, the Verge, and others.