December 27, 2013, 9am PST
By expanding its transit and cycling infrastructure and creating pedestrian-friendly streets, L.A. is improving access to alternative forms of transportation. But in the city's most walkable area, police are out to prove the car is still king.
December 24, 2013, 5am PST
As a Billionaires' Row of sky-high residences rises along 57th Street, towering above Central Park, Michael Kimmelman wonders if it's time to tame the "leggy, cloud-piercing, sliver-thin residential towers".
December 22, 2013, 7am PST
While much attention has been paid to the stunning views that NYC's new skyscrapers offer their affluent tenants, the effects on those left in their shadow are rarely discussed.
December 20, 2013, 10am PST
Is it a giant rock? What about a sunken ship? Beneath Seattle's waterfront, a mysterious object has halted Bertha, the world's largest tunnel-boring machine. Stumped engineers are unclear on how long a highway tunneling project will be suspended.
December 18, 2013, 2pm PST
Designer Deborah Sussman was drawn to Los Angeles in 1953 by an opportunity to work in the studio of Charles and Ray Eames. Over the next sixty years, she helped to define how residents and others see the city. A new exhibit chronicles her work.
December 17, 2013, 5am PST
With only two weeks left in office, Mayor Michael Bloomberg is still adding to one of the most visible legacies of his administration - the city's evolving built environment. Approvals are being sought for more than $12 billion worth of projects.
December 16, 2013, 11am PST
Technology companies are increasing their presence in cities, adopting the language of planners, and seeking to create communities. Yet, according to Allison Arieff, the sector does a uniformly poor job of contributing to urban vitality.
December 16, 2013, 5am PST
The mystery of what outgoing mayor Michael Bloomberg and his top lieutenants will do for their next act has been solved. Many will continue to work together at a new consultancy exporting the ideas they've championed in New York to other cities.
December 15, 2013, 7am PST
Las Vegas Sands and its billionaire owner Sheldon G. Adelson have cancelled outlandish plans to build a $30 billion megacasino near Madrid.
December 13, 2013, 11am PST
In the aftermath of a derailment that killed four passengers and other recent safety lapses, the U.S. Secretary of Transportation has ordered an unprecedented in-depth review of the "operations and 'safety culture'” of Metro-North Railroad.
December 10, 2013, 2pm PST
Since it became available online three years ago, 250,000 riders have taken advantage of a New York MTA program that offers vouchers to substantiate tardiness caused by unexpected subway delays.
December 9, 2013, 2pm PST
Did anyone think the final month of Mayor Michael Bloomberg's third, and final, term was going to wind down quietly? After taking on cigarettes, sodas, and trans fats, Bloomberg is going after plastic-foam food containers.
December 9, 2013, 12pm PST
Concerned that a controversial "good neighbor rule" doesn't go far enough in keeping dirty air from wafting over the East Coast, governors of eight states are petitioning the EPA to enforce stricter pollution standards on their Midwestern neighbors.
December 6, 2013, 11am PST
Embracing the inevitability of some sort of carbon pricing scheme being adopted by the U.S. Government, many of the nation's biggest corporations are incorporating such costs into their financial planning. One major player isn't giving up the fight.
December 6, 2013, 6am PST
The EPA has seriously underestimated the emissions of the powerful greenhouse gas, methane, particularly from oil and gas activity (five times) and from cattle and livestock operations (two times), according to a new report published in the PNAS.
December 5, 2013, 1pm PST
In a major economic speech delivered yesterday, President Obama called America's growing inequality and lack of upward mobility “the defining challenge of our time”. Though he may have diagnosed the disease, did he prescribe an effective cure?
December 5, 2013, 11am PST
Developers at Google and Amazon are among those working diligently to produce a near future full of autonomous cars and delivery devices. Economics professor Casey B. Mulligan suggests such advances will increase the value of urban land.
December 3, 2013, 5am PST
An innovative alliance of urban school districts is working to lower the cost of eco-friendly supplies and source more sustainable food. Their efforts could provide a template for other schools and large institutions.
November 30, 2013, 5am PST
Across the United States, brick-and-mortar stores are engaged in an existential war with online retailers. The newest weapons in the battle for customers are technologies that make the search for a parking spot a cinch.
November 28, 2013, 1pm PST
Now that pesky Thanksgiving Day is nearly over, we can merrily move on to the true focus of the holiday season: Christmas. And what better way to kick off the march to December 25th than to visit the world's largest gingerbread village.