Traffic
Virginia Using Variable Speed Limits To Reduce Congestion
Experts say reducing speed limits based on traffic volumes can relieve congestion and improve the flow of traffic.
What Is Induced Demand?
“If you build it, they will come.”
When Will We Believe in Induced Demand?
The well-documented concept has yet to catch on in state departments of transportation, but acknowledging it could dramatically transform U.S. transportation policy.
Paris To Ban Most Cars in 'Quiet Zone'
Continuing Mayor Anne Hidalgo's efforts to make Paris more accessible to pedestrians and cyclists, the city plans to implement a 'car-light' zone in the city center that prohibits through traffic.
Manhattan Traffic Spreading to Other Boroughs
New travel patterns and an increased reliance on delivery services and ride-hailing are creating more congestion in New York's outer boroughs.
Bike Lanes Don't Cause Congestion
Research from Europe shows bike infrastructure doesn't add to urban traffic and can shift mode share from cars to bikes and reduce the need for solo car trips.
Opinion: Los Angeles Must Prioritize Bikes and Buses
L.A. has a plan for improving mobility. Why are city leaders ignoring it?
The Impact of Amazon Warehouses on Communities
Often located in low-income communities of color, Amazon's warehouses contribute to public health impacts like poor air quality, noise pollution, and traffic congestion.
Evidence for Tolls as a 'Surefire' Traffic Congestion Fix
Traffic on a Louisville freeway fell by half after a toll was implemented. Could this be the best way to reduce traffic congestion?
To Fight Climate Change, Support Public Transit
Electric cars may garner a lot of attention these days, but significantly reducing carbon emissions and urban congestion means investing in high-quality mass transit.
Cargo Bike Pilot Reduces Emissions by 30%
The program deployed electric cargo bikes in a small Seattle neighborhood to test the effectiveness of replacing delivery trucks with lighter vehicles in the last mile of delivery.
New Tool Calculates Induced Demand Caused by Road Widening Projects
The calculator can help transportation advocates and agencies project how many additional miles and emissions a highway widening project would create.
Boosters Bring Normalcy Back to Tel Aviv
Life in Tel Aviv is bustling again since COVID-19 vaccine boosters became accessible to anyone over 12 years of age. Traffic is now more of a concern than COVID, Mayor Ron Huldai told Bloomberg CityLab during a visit to 'quiet' Manhattan.
Why Don't State DOTs Believe in Induced Demand?
Despite evidence that widening roadways is only a temporary solution to congestion, a decades-long inertia leads states to continue pushing expansion projects against local opposition.
New York Mayor's 'Gridlock Alerts' Go Unheeded
Mobility advocates say the city must do more to make transit and alternative transportation modes more convenient for drivers.
What Is Congestion Pricing?
Congestion pricing raises the cost of driving on certain roadways at certain times, reducing traffic,encouraging alternate transportation modes, and generating revenue from the use of infrastructure.
How to End the Commute Nightmare
The pandemic let many people experience a commute-free lifestyle, but can we reduce rush-hour traffic as we make our return to physical workplaces?
Post-Pandemic Traffic: Easier Morning Commutes, Heading for Afternoon 'Peak Spreading'
The Boston Globe recently published an analysis of Boston-area traffic through the pandemic, finding that congestion is finally recovering to pre-pandemic levels, but in new patterns.
Study: Without Fewer Cars, Cities Will be 'Overrun by Gridlock'
Local leaders must invest in public transit and other incentives to reduce the number of private vehicles and congestion in cities.
A Critical Evaluation of the Urban Mobility Report
The Urban Mobility Report (UMR) evaluates traffic congestion problems and recommends congestion reduction solutions. How well does it reflect travelers' priorities?
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
City of Albany
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
Chaddick Institute at DePaul University
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research
