News

Race and class disparities in driver’s license suspension and consequences in California

By Bill Holloway Driver’s license suspension, at least in California, is highly correlated with race and income. Ninety two percent of zip codes with higher than average license suspension rates due to failure to pay (FTP) or failure to appear (FTA) for previous infractions have below average

TDM study suggests we are overestimating vehicle trip generation rates

By Robbie Webber In a recent study done in Melbourne, Australia, researchers compared transportation demand management plans (called “travel plans” in Australia) at four new residential developments with control sites with similar characteristics. The study targeted new developments because

Parking drastically oversupplied across the country

By Chris McCahill On average, the amount of parking provided at mixed-use centers is 65 percent higher than necessary, according to a study just published in the Transportation Research Record. That finding challenges the perceived need for additional parking in many of those places. Meanwhile,

Not so affordable HUD homes

By Bill Holloway A recent study by researchers at Florida Atlantic University found that 44 percent of HUD-subsidized households spend at least 15 percent of their income on transportation. In their Housing + Transportation Index the Center for Neighborhood Technology uses 15 percent of area

Results of an income-based fare policy show potential for wider adoption

By Mary Ebeling Most transit agencies offer some type of discounted fare; typically for seniors or students, and occasionally for low-income customers. In the Seattle region, King County Transit, Sound Transit, and other regional agencies have partnered to launch a first in the nation program

Foxx decries highways’ effects on cities; US DOT can help the cause with rulemaking

By Eric Sundquist In a widely covered March 29 speech and interviews, U.S. Transportation Secretary Anthony Foxx described some of the negative effects that highway building has had on cities— particularly middle- and lower-income neighborhoods. The former Charlotte, N.C., mayor recalled his

Beset by complaints, BART’s Twitter resorts to unvarnished honesty

By Eric Sundquist The Bay Area Rapid Transit system’s Twitter account went viral March 16 when, faced with a larger than usual number of complaints, it began responding like this: CHRISTOPHER CHAPPEL ‎@shakatron .@SFBART we’ve come to expect rush-hour equipment problems and train delays

Data scientists target serious crashes in four U.S. cities

By Chris McCahill Microsoft has teamed with DataKind, a nonprofit organization that connects communities with skilled data scientists, to reduce traffic-related deaths and serious injuries in four U.S. cities. The effort, which first launched in New York City last August, will expand to San Jose,

Does urban sprawl inhibit upward mobility?

By Robbie Webber A study by Reid Ewing, Shima Hamidi, et al. published in the journal Landscape and Urban Planning lends more support to the idea that sprawl can be a deterrent to upward mobility, making it difficult for low-income residents to improve their economic circumstances. Compact metro

New research on the benefits of ignition interlock devices

By Mary Ebeling New research from the University of Pennsylvania finds that states that have passed laws requiring ignition-interlock devices (IIDs) for all drivers convicted of drunk driving have seen a collective 15 percent drop in deaths from drunk-driving crashes compared with rates in states