As Bikers Throng the Streets, ‘It’s Like Paris Is in Anarchy’

An ecologically minded experiment to make Paris a cycling capital of Europe has led to a million people now pedaling daily — and to rising tensions with pedestrians.

How to Escape Your Car in a Flood

Only a foot or two of water can sweep away everything from sedans to trucks. Experts urge drivers to avoid flooded crossings, and to remember a few steps in a crisis.

De Blasio Vowed to Make City Streets Safer. They’ve Turned More Deadly.

Traffic deaths have surged this year to their highest level in nearly a decade. Officials blame an excess of reckless driving, but critics say the city has failed to make streets safer.

Congestion Pricing Is Coming to New York. Everyone Has an Opinion.

At a series of hearings, New Yorkers argued over who should be exempt, who is bearing most of the burden and who should get a seat at the decision-making table.

Ferries in Alaska. Rail in Oregon. States Dream Big on Infrastructure Funds.

The infrastructure bill could reshape priorities across the country, jump-starting critical projects that stalled over funding. These are some of the possibilities.

Three Weeks After Hurricane Ida, Parts of Southeast Louisiana Are Still Dark

As businesses and schools have reopened in New Orleans, ongoing power outages in communities just beyond the city put recovery out of reach.

Books That Cover Two Human Constants: Time and Motion

A review of Tom Standage’s “A Brief History of Motion” and David Rooney’s “About Time” delves into our concern with moving faster and checking our clocks.

‘It Happened So Fast’: Inside a Fatal Tesla Autopilot Accident

A 2019 crash in Florida highlights how gaps in Tesla’s driver-assistance system and distractions can have tragic consequences.

Heavy Rains Pound New York City, Flooding Subway Stations and Roads

More than a dozen people were rescued from a flooded highway in the Bronx, and flash flood watches remained in place thanks to Tropical Storm Elsa.

Tesla Says Autopilot Makes Its Cars Safer. Crash Victims Say It Kills.

A California family that lost a 15-year-old boy when a Tesla hit its pickup truck is suing the company, claiming its Autopilot system was partly responsible.

Michigan Flooding: 50 Drivers Rescued and 350 Vehicles Damaged

Parts of Detroit got up to seven inches of rain. “This isn’t normal here,” an official said.

Five Things to Know if You’re Road-Tripping This Summer

Plan for more traffic and fewer rental cars, and please buy a USB car charger for your phone.

A Little More Remote Work Could Change Rush Hour a Lot

Peak commute time has long ruled our lives, our cities, our tax dollars. But it doesn’t have to.

2 Arrested in California Road-Rage Shooting That Killed a 6-Year-Old

Marcus Anthony Eriz , 24, and Wynne Lee , 23, are expected to be charged with murder in the May 21 killing of Aiden Leos.

Why A.I. Should Be Afraid of Us

Because benevolent bots are suckers. Plus, racism in medical journals, the sperm-count “crisis” and more in the Friday edition of the Science Times newsletter.

N.Y.C. Roads Are Busy Again, and So Are Traffic Reporters

In New York City, traffic has roared back to nearly prepandemic levels; perhaps no one has a better front-row seat than traffic reporters.

Goodbye to a Yankee Farmer, the Ghost of Exit 8

In 1964, a Vermont farmer burned himself and his farm, rather than surrender his land. His neighbors can’t let him go.