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.
The focus of a new publication from the Greenlining Institute is to “offer planners and community advocates a step-by-step guide to a more community-centered transportation planning process that focuses on the mobility needs of communities and puts affected communities at the center of decision-making.” While the work is specific to California, the framework holds value for communities across the country.
The Institute for Transportation and Development Policy recently released Pedestrians First: Tools for a Walkable City. The toolkit, aimed at governments, city planners, NGOs, and developers, notes that “Walkability is the foundation of any type of transportation; all trips require walking at some point.” The toolkit notes factors that influence walkability throughout the city and three scales: citywide, neighborhood, and street level.
A paper published by University of Connecticut Engineering and Geography faculty, titled Relationship between quality of life and transportation sustainability in the United States and selected European countries, offers a look at whether the burdens of transportation systems are resulting in gains for the nation as a whole. And the U.S. does not stack up well in the report.
The agenda and meeting materials from the June 14-15, 2016 meeting of state Sustainability Directors can be found here.
Researchers at University of Colorado and Colorado State University looked at the suitability of 11 transportation sustainability rating tools for use by the Colorado Department of Transportation based on agency use preferences. They found that the INVEST tool from FHWA was the most suitable at this time. However, the field of TSRTs is fairly new, and no one tool will be best for every department.
MassDOT is among a growing number of state agencies tackling sustainability efforts in the transportaiton section and its approach offers valuable lessons for others. number of state agencies tackling this issue and its approach offers valuable lessons for others. This paper traces the evolution of MassDOT’s sustainability efforts, beginning with its revised Project Development and Design Guide, published in 2006, and ultimately encapsulated in its ongoing GreenDOT program, launched in 2010. These efforts represent the combined actions of state legislators, agency leaders, and personnel at all levels of MassDOT.
Urban truck traffic has boomed alongside the rise in e-commerce. As shown in a recent Brookings Institution blog post, while both urban truck and passenger VMT have been growing faster than urban populations since the 1960s, urban truck traffic diverged from urban car travel in the early 1990s and exploded between 2006 and 2008 before a slight dip during the recession. Thanks to this growth, total single unit (box) truck VMT became majority urban in the early 2000s, and combination (tractor-trailer) truck VMT is likely to become majority urban in the coming years.
The nation’s largest state DOT, Caltrans, signaled a strong move toward multimodalism, sustainability, and customer focus in a new strategic management plan released last week. The plan, which comprises a series of performance measures, represents a step away from traditional automobile infrastructure-centric views of DOT work. As Director Malcolm Dougherty notes in his introduction, this shift follows previous work to refocus the department’s mission.
The Presidio Parkway Phase I in San Francisco is the first state highway to be awarded a Greenroads certificate, indicating a high level of environmental sensitivity and sustainability during design and construction of the roadway. The project received a Bronze Rating. Key elements recognized by Greenroads in the project’s certification included an extensive public involvement process with special attention paid to biological, cultural, and natural resources.