Details of the ongoing testing and experimentation of an autonomous shuttle bus called Minnie at a facility north of the Twin Cities.

"Winter driving in Minnesota presents some challenges for the technology underpinning autonomous vehicles, much of it being developed by companies in temperate Silicon Valley, and tested in sunnier climes," reports Greta Kaul.
There's a test to prove it too. As Kaul reports, the Minnesota Department of Transportation is testing an autonomous shuttle bus affectionately nicknamed "Minnie," at a facility near Albertville. Conditions in Minnesota and other northern states will determine the future feasibility of autonomous vehicles. "It’s important, [Minnesota Department of Transportation officials] say, that conditions like snow, salt-caked cars and black ice are considered by both manufacturers and policymakers as cars start to drive themselves."
So far, Minnie has encountered difficulties with snowbound conditions. For instance, road salt blocks sensors. 3M "is working with MnDOT on the shuttle project, is helping to develop films that protects the sensors," according to Kaul. There's also falling snow: "LIDAR is a very sophisticated form of technology, but it can be foiled by precipitation," explains Kaul. Snow is a particularly good reflector of infrared laser light, too.
FULL STORY: Driving in Minnesota winters is hard — even for driverless vehicles

Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?

Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?

Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.

Updating LA’s Tree Rules Could Bring More Shade to Underserved Neighborhoods
A new USC study finds that relaxing Los Angeles’ outdated tree planting guidelines could significantly expand urban tree canopy and reduce shade disparities in lower-income neighborhoods, though infrastructure investments are also needed.

California's Canal Solar Projects Aim to Conserve Resources and Expand Clean Energy
California’s Project Nexus has begun generating electricity from solar panels installed over irrigation canals, with researchers and state agencies exploring statewide expansion to conserve water and boost clean energy production.

HHS Staff Cuts Gut Energy Assistance Program
The full staff of a federal program that distributes heating and cooling assistance for low-income families was laid off, jeopardizing the program’s operations.
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