Most personal vehicles can travel at speeds of over 100 miles per hour, far above any U.S. speed limit. Why?

Writing in Fast Company, David Zipper presents an argument for mandating speed-limiting technology on personal vehicles—an argument now being made by federal regulators.
Using an example from Las Vegas where a driver going more than three times the speed limit killed nine people, Zipper notes that an investigation summary from the National Transportation Safety Board (NTSB) of the crash “recommended that automakers install technology on all new cars that can prevent reckless speeding—and, for the first time, called on the National Highway Traffic Safety Administration to mandate it.”
For Zipper, “That is an excellent, overdue idea.” Speed governors are already mandated on much less deadly vehicles like e-scooters (and some company vehicles), and many modern cars do have speed limiters that cap speeds at 155 miles per hour. Why not set them at a more reasonable, less deadly limit?
The NTSB recommends that the National Highway Traffic Safety Administration (NHTSA) require the adoption of Intelligent Speed Assist (ISA) technology. As Zipper explains, “‘Passive’ ISAs issue audible or haptic alerts to drivers who exceed the top programmed speed, hopefully compelling them to slow down. ‘Active’ ISAs intervene in the car’s mechanics, often by requiring the driver to apply extra force on the accelerator.” The technology will be mandated on cars in Europe starting next year.
FULL STORY: You shouldn’t be driving over 100 mph—and your car shouldn’t let you

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.

National Parks Layoffs Will Cause Communities to Lose Billions
Thousands of essential park workers were laid off this week, just before the busy spring break season.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50
A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

Test News Post 1
This is a summary

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.

Test News Headline 46
Test for the image on the front page.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
EMC Planning Group, Inc.
Planetizen
Planetizen
Mpact (formerly Rail~Volution)
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research
NYU Wagner Graduate School of Public Service