News

GPS data informs transportation projects in Northern Virginia: SSTI study

By Chris McCahill Transportation agencies, dependent for decades on traffic counts and travel demand models, are turning to new sources of data to understand the movement of vehicles and people. These include aerial photography, Bluetooth sensors, and cellular location data. Adding to that list,

AllTransit: Transit connectivity, accessibility, and frequency

By Mary Ebeling The Center for Neighborhood Technology and TransitCenter has released its AllTransit tool that assists in analysis, planning, and visualization of transit systems. AllTransit stands out through its ability to analyze a variety of metrics quickly, producing outputs in the form of

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,