Ice and snow is a dangerous combination out on the roads, sidewalks
and parking lots. Local emergency rooms say they're seeing more patients
coming in after falling on the ice.
"It's been iciest on the sidewalks for me I walked down 3rd Ave and that was pretty bad," said Jeremy Sutton.
The emergency room at Mayo Clinic Health System-Eau Claire has been busy this week.
“People
just slipping on the ice falling on their butts hitting their heads its
very common this time of year,” said Dr. Sue Cullinan with Mayo Clinic
Health System.
Cullinan says most patients she sees after a fall
come in with a broken ankle, hip or a nasty bump on the head. She says
falls can be life-threatening for people on blood thinners. Cullinan
says two of the most dangerous places to slip and fall are on the stairs
or stepping out of your car.
“Usually people aren't looking and
aren’t careful stepping on to a curb or getting out of their car so
they slip before they know it’s icy; so thinking ahead, looking down,
taking short shuffling steps and expecting ice where ever you go is the
best thing you can do,” said Cullinan.
There was a time when
manual transmissions always outperformed automatics on the track, but
you won’t find a clutch on today’s F1 supercars anymore. Those have been
replaced by semi-automatic paddle shifters mounted to the steering
column. Even on the street-legal consumer side, acceleration is a
shifting landscape. While six-speed manuals such as the Lingenfelter
Chevy Corvette and Dodge Viper Hennessey Venom still hold the top 0 to
60 mph times, today’s automatics are increasingly accelerating faster
and getting better fuel economy than their manual counterparts in what
amounts to a significant changing of the guard.
In the automotive world – as in computing, Jeopardy!, and sometimes even chess – technology is outperforming humans.
With
much talk about driverless car technology lately, that begs a number of
questions. One example: Vehicle fuel efficiency, hybrids, and electric
vehicles are central to a transforming, cleaner, greener transportation
system; What will driverless cars mean for fossil fuel consumption in
the transportation sector? At RMI, we’re very interested in the answers
to this question.
Individual driverless cars come with important
opportunities for increased efficiency. Groups of driverless cars
likewise have the potential for even greater collective efficiencies,
for example through shared reduced drag. And driverless vehicles
seamlessly connected to smart infrastructure offer even greater promise
still.
In the context of driverless cars, drafting becomes platooning, a grouped “train” of autonomous,Online shopping for luggage tag
from a great selection of Clothing. connected cars following a lead
car. The SARTRE project—fully operational today and potentially ready
for consumer deployment within 10 years—is the latest iteration of a
concept that first gained popularity in the 1990s.The USB flash drives wholesale is our flagship product. By traveling within 13 feet of one another,They manufacture custom rubber and silicone bracelet
and bracelets. the platooned vehicles reap great efficiency gains. A
1995 PATH (Partners for Advanced Transportation TecHnology) study showed
fuel use reductions up to 20 percent at this distance; even greater
reductions are possible with larger platoons and/or tighter spacing
between vehicles.
Now here’s where driverless cars, hypermiling,
and speed all potentially intersect. The National Highway Maximum Speed
Law of 1974, motivated by the 1970s oil crisis, gave us the 55 mph
speed limit, targeted at keeping U.S. drivers at peak fuel efficiency.
In 1995, the law was abolished and speed limits now vary widely state by
state, though 55 mph remains common on many of the nation’s highways.
But what if driverless cars—by being able to safely maintain much closer
following distances in platoons than human drivers—could actually
increase the speed of peak efficiency? We’d get places faster while
still using less fuel.
The opportunities bound up in driverless
cars are many. They’re highly compatible with car-sharing programs (more
on that in a future post). They have implications for public
transportation systems (ditto). If you’re feeling drowsy on a long-haul
drive or at the end of a tough day at work, a driverless car could let
you sit back and relax, or even take the wheel if it senses you’re
driving erratically; ditto if you find you’ve unexpectedly had too much
to drink—rather than call a taxi, a driverless car could take you home.
By feeding information into (and obtaining info from) a shared database
akin to the smartphone app Pothole Alert, they could avoid road hazards
or even notify the local highway department or department of public
works to road repair and maintenance needs.
But let’s return to
the fuel consumption issue. Driverless cars connected to the traffic
light system could communicate with an upcoming light and have it stay
green or change to green, so that you could maintain cruising speed and
optimal fuel efficiency (not to mention avoiding an unnecessary delay at
the light). And of course there’s the familiar issue of parking,
especially in urban environments where it accounts for 30 percent of all
traffic. Autonomous cars and a smart parking system could allocate
parking spaces to the nearest vehicles in need of a spot,You must not
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without being trained. and vehicles could navigate to those spots
directly and quickly, reducing the fuel consumption, emissions, and time
associated with searching for a spot.
There are pitfalls to be
wary of, however. One giant elephant in the driverless car room is
vehicle miles traveled (VMT). It’s tempting to believe that driverless
cars will reduce VMTs through various efficiencies,Where you can create a
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from our wide selection of styles and materials. but the opposite could
also happen. In a highly autonomous vehicle future, we may do far more
with our cars than we currently can—think of Pierce Brosnan’s James Bond
calling his BMW 750 via cell phone in Tomorrow Never Dies, or David
Hasselhoff’s Michael Knight and his autonomous car, KITT, each chasing
down different suspects in Knight Rider.
What if our driverless
cars of the future have a valet mode that allows them to park
themselves, becoming not just driverless but also passengerless? What if
they run errands for us, such as picking up lunch or dry cleaning or
the kids at soccer practice? What if driverless cars—and the
efficiencies and flexibility they offer—actually incentivize us to drive
more? This “rebound effect” could increase VMT and fuel consumption,
eating into the potential energy savings we’d otherwise expect from
highly efficient autonomous vehicles. We must be prepared to address
these undesirable yet entirely possible outcomes.
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