Cycling advocates set up ‘ghost bikes,’ like this one in Brooklyn, in memory of bikers killed in traffic.
US cities were designed and engineered around cars. Now some are working to increase walking and biking, but the shift isn't easy.
This narrow street, lined with parked cars but devoid of people, is both unwelcoming and unsafe for cyclists.
Minorities are driving the bicycling boom, but bike infrastructure investments often neglect their needs. A new study explores what riders in low-income and minority neighborhoods want.
Public bikes are meant to complement a city’s existing mass transit network, so the location of docking stations is critical.
Under 10 percent of new Citi Bike and Divvy bike docks are sited where residents suggested using interactive online maps, a new study shows. But that doesn't mean city officials weren't listening.
Unloading packages and arranging them for delivery in New York City.
AP Photo/Mark Lennihan
Rising e-commerce means more delivery trucks and urban gridlock. Lockers at transit centers, where carriers can leave packages for people who live or work nearby, are a potential solution.
Port of Long Beach, California.
Hundreds of US cities have pledged to meet the carbon reduction targets in the Paris climate accord. Now it's time for them to start showing results.
A Townsville City Deal was signed two years ago and the city is now one of Queensland’s ten leaders on smart city performance.
How smart are our cities now? In Queensland, a study of all 78 local government areas reveals major gaps between the ten leading the way in becoming smart cities and the rest of the state.
San Diego Mayor Kevin Faulconer, right, and California Governor Jerry Brown, left, discuss drought and water restrictions on August 11, 2015. Faulconer has championed renewable energy, water recycling and other climate-friendly policies.
AP Photo/Lenny Ignelzi
They may not say 'climate change,' but many Republican US mayors support clean energy, jobs in renewable industries, and other climate-friendly policies. And so do majorities of their constituents.
Citibike station in midtown Manhattan.
Dozens of US cities have launched bike-share programs in the past decade. There have been bumps – critics want wider access, and cities want bikes stored out of the way – but bike sharing is on a roll.
Governments have started to see automation as the key to brighter urban futures. But what will this look like?
Benjamen Gussen’s proposal for a ‘charter city’ in the Pilbara stimulated this imaginary depiction.
Business-as-usual projections assume our four biggest cities must absorb three-quarters of Australia's population growth over the next 30 years. Might new cities be a better way to deal with it?
Where’s my bus?
Even in cities with good public transportation, some areas can be 'transit deserts,' where demand exceeds supply. Living in these zones makes it hard to access good jobs, health care and other services.
The Urban Planning Exhibition Centre in Shanghai – good planning is immensely valuable.
Given the challenges Australian cities face, the need for urban planning based on solid research is greater than ever. Sadly, when it comes to research funding, planning is at the back of the queue.
Cars sit in flood water from Boston Harbor on Long Wharf during a coastal storm on Jan. 4, 2018.
AP Photo/Michael Dwyer
They don't all support the same strategies for coping with it, but US mayors increasingly see climate change as a pressing urban challenge.
Ségou is rich in arts and crafts, and has built its famous festival around the performing arts.
Guillaume Colin & Pauline Penot/Flickr
Ségou in Mali has successfully developed its urban cultural economy in ways that's inclusive, sustainable and context-sensitive.
The Wray Avenue Solar Parklet by Seedesign Studio is in Fremantle.
Many parklets are privately funded, but these projects often allow for more public participation than more traditional public spaces.
The right side of the ‘latte line’ in Sydney, looking across Paddington towards Bondi Junction and the eastern suburbs.
The State of Australian Cities Conference begins in Adelaide today. In major cities across the nation, there's a stark contrast between lofty planning goals and the sprawling reality on the ground.
Canadian Prime Minister Justin Trudeau and Sidewalk Labs CEO Dan Doctoroff launch Sidewalk Toronto, a high-tech urban development project.
Toronto has entered a joint venture with a Google sister company to create a high-tech urban development area. The goal is to 're-imagine cities from the internet up' – Google's internet, of course.
Harpa Concert Hall in Reykjavik, Iceland.
Digital media on building facades are changing the appearance of our cities. This creates a need for new urban policy guidelines to retain architectural quality and promote social engagement.
Under the El tracks, downtown Chicago.
New research shows that noise pollution in US cities is concentrated in poor and minority communities. Beyond regulating airplane noise, the US has done relatively little to curb noise pollution.
The first autonomous vehicles are already upon us, but once their use becomes widespread they will change cities as surely as the original cars did.
It's clear autonomous vehicles will disrupt our cities, their land use and planning. Whether they make urban life better or worse depends on how well we anticipate and adapt to their impacts.