#aashto-green-book

#aashto-green-book

My family had Slide Show Night when I was growing up. Not every Saturday, but a whole bunch of Saturdays. Either my sister or I would be in charge of setting up the projector, the screen, and loading the carousel. During the show, there'd be a few landscapes or skylines taken during vacations, but almost all the shots were up close. Like most dads, mine wasn't a professional photographer, but he did a good job of capturing memory triggers: faces, gestures, and decorations.

Jane Jacobs was also one of the voices that challenged this predominantly rationalist logic, arguing that truly vibrant streets are those capable of sustaining the diversity of everyday life, its informal exchanges, and the forms of care and natural surveillance that emerge from them. What these authors share is a fundamental insight: streets are not merely infrastructures for circulation, but social ecosystems, shaped by the relationships, uses, and encounters that take place within them.

Hundreds of preventable fatalities and more than 13 million metric tons of climate pollution would be avoided by 2045 if Congress passed legislation that answered advocates' long- time demand to require state DOTs to set declining annual fatality targets - and reallocate highway money to safety projects if they don't meet those goals, according to a new analysis from Evergreen Action.

In the 1950s, the Air Force designed cockpits for the average pilot by measuring thousands of pilots and calculating the average for ten key physical dimensions-height, arm length, torso size, etc. They assumed most pilots would be close to average in most dimensions. When researchers actually checked, they found that out of 4,063 pilots, exactly zero were average on all ten dimensions.

A lot of what we can do at DOT is ... is focusing on designing our streets, designing our infrastructure, to make it easier for delivery workers to make safe choices, to operate safely, to reduce conflicts between them and other users, whether that's basically wider bike lanes that can accommodate a wider range of users,

The new "abundance" agenda can deliver a wealth of equitable transportation options - but only if its proponents recognize how our glut of highways has contributed to the "scarcity" they say they hope to tackle, advocates are saying.Inspired by the Ezra Klein and Derek Thompson's book of the same name, "abundance" became a political buzzword across America in 2025, inspiring a universe of think-pieces and justification for a raft of deregulatory policy proposals.