Latest News

Florida is leading the nation in lowering speeds to reduce crashes; will other states follow?

By Rayla Bellis The Florida Department of Transportation plans to lower speed limits and design speeds in some areas from their current 40-45 mph limit to a 25 mph limit to improve roadway safety. They will start with a pilot program in the Tampa Bay region. This makes FDOT one of the first

New SSTI Resource: Understanding Trip-Making with Big Data

By Chris McCahill SSTI has released a new resource for decision-makers interested in using big data to understand travel patterns, but who are not sure how to get started. This new brief provides an overview of trip-making data from cellphones, mobile apps, and in-vehicle GPS devices. It shows

New life for GHG tracking rule?

By Eric Sundquist In the waning days of the Obama administration, FHWA finalized the last set of performance measures for states and MPOs. That seemed to end a 4.5-year rulemaking effort that had kicked off in mid-2012 with the signing of the MAP-21 transportation bill. However, the incoming

700,000 carless renters pay extra 13 percent for unused garage parking

By Chris McCahill A new study finds that garage parking costs the average renter an additional $1,700 per year (17 percent) nationwide. For the average carless renter, the extra cost of unused parking is $621 per year (13 percent). That amounts to $440 million in losses across more than 700,000

Transit futures in an Uber world

By Sam Sklar Bus ridership in Philadelphia is down an average of 2.7 percent from 2014 to 2016 and down even further from a ridership high in 2012, according to a recent article on Philly.com. This decline is correlated with the rise of Uber and other ridesharing apps in the city that provide

Work remains: Reducing bus travel times to increase ridership

By Logan Dredske Fixed-route buses are the most common form of public transit in the United States; however, bus ridership has been falling in recent years after enjoying a surge in the early- to mid-2000s. Efficiency in all aspects of the transit network is important if transportation agencies

Yes, BRT can contribute to TOD in smaller cities

This article was originally posted on TOD Technical Assistance Initiative blog Investments in high-capacity public transit such as light rail and subways continue to demonstrate their ability to substantially increase property values along transit alignments. But can we say the same about

SSTI releases Connecting Sacramento: A trip-making and accessibility study

By Chris McCahill For several years, SSTI has worked to advance best practices in the use of two emerging technologies: accessibility metrics and trip-making data from mobile devices. Our recently completed study, Connecting Sacramento, was an essential part of that effort. This study brings

Who pays for roads? Users, but only partly

By Eric Sundquist Most readers of this blog are well aware that subsidies are common across transportation modes. But it’s useful to have the numbers, and so periodic reports by the Tax Foundations, which supports “simplicity, neutrality, transparency, and stability” in the tax code, are

How much does parking really cost (in time, fuel, and frustration)?

By Robbie Webber INRIX, a company that provides both software and data services in the realm of transportation and mobility, has issued a report on the cost of “parking pain.” Instead of focusing on the cost of a parking spot, the report looks at the time, wasted fuel, and congestion caused

Real-time travel information: Better for businesses, better for travelers

By Logan Dredske Real-time travel information on digital screens placed in popular gathering areas allows for more efficient time management by transportation users of all modes. Tysons Corner Center, a shopping center in northern Virginia, uses Traveler Information Displays (TIDs) that provide

What HOV requirements in Jakarta can teach us about congestion

By Sam Sklar According to a new paper from three researchers at Harvard and MIT, removal of a strict High-Occupancy Vehicle (HOV) policy had negative effects on traffic in Jakarta, Indonesia, the world’s second largest metropolitan area. Congestion increased even on streets with no

Cleaning up the commercial diesel truck industry

By Logan Dredske In 2011, U.S. EPA and NHTSA established a national program to reduce greenhouse gas emissions and set new fuel efficiency standards for commercial vehicles starting in 2014. The requirements of this program are a driving force that is causing manufacturers to advance diesel

A toolkit to measure and value “community severance” due to traffic

By Erin Evenhouse A high-traffic road can divide a community in more ways than one. Researchers haven’t always been able to show to what extent such roads can harm a community’s access, health, or quality of life. A new study outlined in the latest volume of the Journal of Transport and

Does legalized marijuana lead to more car crashes?

By Rayla Bellis As more states legalize recreational use of marijuana, decision makers are seeking to understand the implications for safety and public policy. A number of recent studies have examined whether states that have legalized marijuana are seeing higher incidence of car crashes and road