Longer trips, faster speeds, fewer options: What’s really valued in the “value of time”?
Whose time are we saving? T4America photo by Steve Davis.Despite its name, the federal “value of time” guidance doesn’t actually value travelers’ time at...
More highways, more driving, more emissions: Explaining “induced demand”
Even if we hit the most ambitious targets for changing our cars and trucks over to electric vehicles, we will fail to meaningfully reduce...
New calculator shows how highway expansions increase traffic
The SHIFT Calculator provides transparency about new traffic created by highway widening and expansion so transportation agencies can make smarter, more sustainable transportation investments.
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The Partnership That Sparked a Global Movement for E-Buses
As cities worldwide grapple with the impacts of air pollution, traffic congestion, the escalating effects of climate change, and extreme weather, the need for...
ITDP at 40: A Conversation on Four Decades of Sustainable Transport
2025 marks the 40th anniversary of ITDP. It’s a time to reflect on our journey from grassroots activism to global influence, and to look...
A Marathon, Not a Sprint: Lessons from India’s Walking & Cycling Challenges
As we close the chapter on two of India’s landmark mobility initiatives, the India Cycles4Change (C4C) and Streets4People Challenges (S4P), there is much to...
This US Company Just Successfully Tested a Reusable Hypersonic Rocket Plane
Stratolaunch has finally found a use for the world’s largest airplane.Twice in the past five months, the company launched a hypersonic vehicle over the...
