Engineers at the Virginia Department of Transportation (VDOT) are studying a new type of asphalt mixture, called recycled plastic modified asphalt mixture (RPM), that could replace traditional asphalt mix. While limited research on the technology says it is a win-win for both improving longevity of roads and redirecting plastic waste from landfills, VDOT wants to confirm that the new mixture does not result in microplastic entering the environment through water runoff.
By Chris McCahill Traffic impact assessments (TIAs) are commonly used by local governments to ensure that new developments do not cause excessive delay on nearby roads. There is growing cause for concern, however, that these tools have …
By Saumya Jain A new study found little evidence that new bike infrastructure leads to displacement of low-income households or people of color, despite the two sometimes being linked in public discourse. The data reveal some bias toward mostly white neighborhoods in terms of where new facilities are installed, but sharrows, or markings …
By Benito Perez There is a growing public clamor for better access by people to the places where they live, work, and spend their recreational time. However, a majority of transportation investments are spent on moving people through places, typically by driving. There is a change in …
One out of every five miles of road in the U.S. is in poor condition and less than half are rated as “good,” and their condition is just getting worse. Transportation agencies in some states have committed to turning things around by prioritizing maintenance in their spending plans.
The current COVID-19 pandemic has created unique transportation challenges for cities and states. This includes everything from maintaining transit with plummeting ridership to facing a needed economic recovery with major decreases in the taxes that pay for transportation maintenance and improvements. With the CARES Act passed and more stimulus and recovery funding being considered, the national experience with the ARRA funding from the last recession might hold lessons for how to jump-start the economy and job creation.
Cities across the country are restricting motor vehicle use on some streets and reallocating road space to give residents more space to move by foot and bicycle while still maintaining appropriate distancing during the COVID-19 pandemic. Many cities are finding that residents using active transportation face two problems: drivers speeding on the empty streets and insufficient space to stay six feet apart on sidewalks, paths, and trails.
Polling data collected in November and released in March show voters want better transportation options across geographic and party lines. The results indicate that a majority of voters wish they had alternatives to driving, support improving public transit, and want government to fix existing roads before building new ones. While COVID-19 has upended daily life, the results help paint a picture of the transportation system Americans want to see.
NCHRP has released a new guidebook to help state DOTs systematically integrate a right-sizing approach into their decision-making. The practice of “right-sizing” involves modifying the size, extent, function, and composition of existing or planned infrastructure and services to better reflect current needs, goals, and economic realities. While right-sizing has gained popularity, few agencies are doing right-sizing routinely. NCHRP’s new guidebook may help bridge that gap.
Can the rise of new personal mobility options lure drivers out of their cars for short trips? Several recent reports say, “yes,” but only if cities resolve both infrastructure and legal issues surrounding their use. At the same time, examination of walking and biking rates from 2001 to 2017 show that better infrastructure and policies are needed to help them supplant driving for short trips. However, cities that have invested in infrastructure have seen a dramatic rise in active transportation.