If the U.S. Air Force has its wish, America's next subway system won't be built in a city and won't carry passengers (not human ones anyway). Robert Beckhusen reports on plans for a "mobile doomsday train."

"The Air Force wants to upgrade its aging nuclear missiles and the hundreds of underground silos that hold them," says Beckhusen. "One idea it’s exploring: the construction of a sprawling network of underground subway tunnels to shuttle the missiles around like a mobile doomsday train. As one does."
"As first reported by Inside Defense, the Air Force Nuclear Weapons Center will award several study contracts next month worth up to $3 million each to research the idea. A broad agency announcement from the Air Force describes the hair-raising concept, intended to keep the weapons secure through 2075, as a system of tunnels where nuclear missiles are shuttled around on rails or some undefined 'trackless' system."
"The project would likely be gigantic, expensive and take decades to build — all things that cut against cut against these relatively lean times at the Pentagon," cautions Beckhusen. But other options for replacing the U.S.’ silo-launched nuclear arsenal of 420 Minuteman III ballistic missiles seem equally costly and complex.
FULL STORY: That’s No Train! Air Force Eyes Subway for Nuclear Missiles

Maui's Vacation Rental Debate Turns Ugly
Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

San Francisco Suspends Traffic Calming Amidst Record Deaths
Citing “a challenging fiscal landscape,” the city will cease the program on the heels of 42 traffic deaths, including 24 pedestrians.

Opinion: What San Francisco’s Proposed ‘Family Zoning’ Could Really Mean
Mayor Lurie is using ‘family zoning’ to encourage denser development and upzoning — but could the concept actually foster community and more human-scale public spaces?

Jacksonville Launches First Autonomous Transit Shuttle in US
A fleet of 14 fully autonomous vehicles will serve a 3.5-mile downtown Jacksonville route with 12 stops.

‘Big, Beautiful Bill’ Guts EV Tax Credits
The bill eliminates federal subsidies for electric vehicle buyers and charging stations.
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