Highways

Summer 2024’s record heat is creating problems for transportation infrastructure, from roads to rails. New York’s Third Avenue Bridge, which swings open for ship traffic on the Harlem River, was stuck for hours after its metal expanded in the heat and it couldn’t close. Roads have buckled on hot days in several states, including Washington and Wisconsin. Amtrak warned passengers to prepare for heat-related problems hours before a daylong outage between New York and New Jersey; the risks to power lines and rails during high temperatures are a growing source of delays for the train system. It doesn’t help that the worsening heat is hitting a U.S. infrastructure system that’s already in trouble. The American Society of Civil Engineers gave U.S. infrastructure an overall grade of C- in its latest national Infrastructure Report Card, released in 2021. While there has been some improvement – about 7.5% of U.S. bridges were in poor condition, compar...

Winter storms can easily become billion-dollar disasters as the snow piles up on interstates and collapses roofs and power lines. Yet, while canceled flights and business interruptions can’t be avoided, what turns a snowstorm into a disaster often can be. I have worked on engineering strategies to enhance disaster resilience for over three decades and recently wrote a book, “The Blessings of Disaster,” about the gambles humans take with disaster risk. Snowstorms stand out for how preventable much of the damage really is. Stay off the roads The easiest storm costs to avoid involve human behavior, including driving during snowstorms. Successfully plowing the snow off a highway requires repeated passes to prevent snow from accumulating to the point where it piles up faster than it can be removed. However, that simple concept breaks down when an accident blocks the lanes, and traffic – including commerce and emergency vehicles – grinds to a halt. W...

Public transit systems face daunting challenges across the U.S., from pandemic ridership losses to traffic congestion, fare evasion and pressure to keep rides affordable. In some cities, including Boston, Kansas City and Washington, many elected officials and advocates see fare-free public transit as the solution. Federal COVID-19 relief funds, which have subsidized transit operations across the nation at an unprecedented level since 2020, offered a natural experiment in free-fare transit. Advocates applauded these changes and are now pushing to make fare-free bus lines permanent. But although these experiments aided low-income families and modestly boosted ridership, they also created new political and economic challenges for beleaguered transit agencies. With ridership still dramatically below pre-pandemic levels and temporary federal support expiring, transportation agencies face an economic and managerial “doom spiral.” Free public transit that doesn’t b...

Spring is planting time for home gardeners, landscapers and public works agencies across the U.S. And there’s rising demand for native plants – species that are genetically adapted to the specific regions where they are used. Native plants have evolved with local climates and soil conditions. As a result, they generally require less maintenance, such as watering and fertilizing, after they become established, and they are hardier than non-native species. Many federal, state and city agencies rank native plants as a first choice for restoring areas that have been disturbed by natural disasters or human activities like mining and development. Repairing damaged landscapes is a critical strategy for slowing climate change and species loss. But there’s one big problem: There aren’t enough native seeds. This issue is so serious that it was the subject of a recent report from the National Academies of Sciences, Engineering and Medicine. The study found an u...

Public transit in the U.S. is in a sorry state – aging, underfunded and losing riders, especially since the COVID-19 pandemic. Many proposed solutions focus on new technologies, like self-driving cars and flying taxis. But as a researcher in urban policy and planning, I see more near-term promise in a mode that’s been around for a century: the city bus. Today, buses in many parts of the U.S. are old and don’t run often enough or serve all the places where people need to go. But this doesn’t reflect the bus’s true capability. Instead, as I see it, it’s the result of cities, states and federal leaders failing to subsidize a quality public service. As I show in my new book, “The Great American Transit Disaster: A Century of Austerity, Auto-Centric Planning, and White Flight,” few U.S. politicians have focused on bus riders’ experiences over the past half-century. And many executives have lavished precious federal capital doll...