Pursuing statewide or agency climate and equity goals isn’t just preferable for state DOTs, it can also be a matter of risk management. Several lawsuits targeting major transportation infrastructure projects, most recently in Wisconsin and Oregon, have taken aim at alleged failures to consider alternatives to capacity expansion that would reduce harm to the environment or inequitable project outcomes.
Minnesota
States must step up efforts to reduce harmful carbon emissions
As of last September, 16 states and Puerto Rico approved legislation requiring reductions in greenhouse emissions. The White House also set ambitious goals of cutting emissions by at least 50% below 2005 levels in 2030. They aim to achieve a net-zero economy by 2050. Contributing to 29% of all greenhouse gas emissions in the U.S., the transportation sector is now the top producer and accounts for a growing portion each year. More than half of these emissions (57%) come from personal vehicles such as cars, SUVs, and light-duty trucks. Progress in cutting those emissions has been slow, let alone efforts to measure and track them.
State DOTs are key players in cutting transportation emissions
Through a combination of carrots and sticks—but mostly carrots—the federal government has encouraged state DOTs to take ambitious steps to lower the environmental impacts of transportation and to invest in more sustainable travel options. Two years into the Bipartisan Infrastructure Law (BIL), notes Adie Tomer at Brookings, it is still hard to know the impacts. Many states are still operating under the status quo. Others, however, including many SSTI partners, are seizing the opportunity to bolster ongoing local sustainability initiatives.
State DOTs are helping locals set lower speed limits
In response to mounting safety issues, more transportation agencies are recognizing the importance of managing traffic speeds—a shift from long-held practices that prioritize vehicle speed. In the long run, this will require widespread changes in road design that reinforce lower travel speeds through physical and visual cues. Until then, however, authorities are turning to more immediate strategies like setting lower speed limits in urbanized areas. As the leading authorities across much of the U.S., state DOTs are stepping up to the task.
Saving lives, money and time—with corn?
Standing corn row windbreaks, used in northern Midwest and Plains states, are part of a larger program supporting living snow fences. These windbreaks benefit DOTs and communities by reducing winter road closures and the associated costs, decreasing crashes, and reducing the use of salt and sand, which also helps budgets and the environment. Many states in the “snow belt” employ this as part of a broader living snow fence technique.