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The latest news and information on analog/digital control, components/hardware, embedded systems, power/thermal management, and sensors for design engineers.

Historic Drop in Highway Fatalities

Charles Murray
Posted by Charles Murray on August 20, 2008

Electronic safety systems may be showing their value. According to new statistics from the U.S. Department of Transportation, the number of people who died on the nation’s roads last year reached historically low levels. Overall traffic fatalities fell to 41,059, the lowest level since 1994. Also, the fatality rate per 100 million vehicle miles dropped to 1.37, the lowest fatality rate on record.

            An electronic stability control mandate, set to start on September 1st, is expected to reduce annual fatalities by an additional 6,000 to 9,000 per year. Smart highways, which are farther out in the future, are expected to reduce annual fatalities to as few as 10,000 per year.    

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Big Engineering Schools Get Poor Marks

Charles Murray
Posted by Charles Murray on July 31, 2008

Engineering colleges fared poorly again in an annual survey released this week by The Princeton Review.

Top technical schools ranging from Cal Tech to Georgia Tech to Illinois Institute of Technology popped up on lists involving least happy students and worst professors. While the big-name schools dominated those areas, however, the news was good for two small engineering colleges that appeared on lists of happiest students and best professors.

            Most notable for the engineering community, however, were the lists titled “Least Happy Students” and “Professors Get the Worst Marks.” The rankings, which are based on interviews with 120,000 students at 368 schools, placed five engineering schools on the least happy list. The U.S. Merchant Marine Academy was the worst, with the New Jersey Institute of Technology, the U.S. Coast Guard Academy, New Mexico Institute of Mining and Technology and Illinois Institute of Technology (IIT) all landing in the worst ten. Under “Professors Get the Worst Marks,” engineering schools owned the four worst spots: Stevens Institute of Technology landed at the bottom, followed, in order, by the U.S. Merchant Marine Academy, Cal Tech, and the New Jersey Institute of Technology. IIT, Georgia Tech, and Rensselaer Polytechnic also landed in the bottom ten.

            On the flip side, Franklin Olin College of Engineering and Harvey Mudd landed in the top ten in the category called “Professors Get High Marks.” Franklin Olin also finished fifth in the happiest students category.

            Engineering experts have argued in the past that engineering colleges will always do poorly on such lists because of the intensity and number of study hours required by engineering curriculums. This year’s list supported that argument: In a category titled “Students Study the Most,” engineering schools grabbed four of the top five spots (MIT, Franklin Olin, Cal Tech, Harvey Mudd).

No engineering schools appeared on a list titled, “Students Study the Least.” 

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The Economics Of Buying A Hybrid

Charles Murray
Posted by Charles Murray on July 27, 2008

If you’re wondering whether it’s finally time to buy a hybrid vehicle, then you’re not alone. J.D. Power & Associates, the market research company, recently published results of a survey showing that 72% of consumers say they are “definitely/probably” interested in having hybrid-electric technology in their next new vehicle. Understandably, that figure was up from 58% in 2005, when a similar study was last conducted.

            Given the rising price of gasoline, that’s a natural response. Most consumers figure they can save a lot of money by buying a vehicle that gets better gas mileage.

            The problem is, though, it’s still not clear that you’ll come out ahead by buying a hybrid. By most accounts, the majority of hybrids are good vehicles: strong acceleration; quiet ride; dependable, too. But if your sole reason for looking at a hybrid is lower cost, then you better sharpen your pencil and prepare to do battle with the numbers.

            Two years ago, Consumer Reports published its own study, titled “The Dollars and Cents of Hybrid Cars,” which compared costs for seven hybrid models. The study showed amazing foresight by basing its findings on a mathematical model that assumed the price of gasoline would gradually rise over five years to almost $6 a gallon. Using the model, gasoline averaged out to about $3.66 a gallon for the entire five-year period.

            And the results? Four of the seven hybrids did better than their all-gasoline-burning counterparts when it came to cost of ownership. The Ford Escape Hybrid beat the conventional Ford Escape XLT; the Toyota Camry Hybrid beat the conventional Camry LE; the Toyota Prius knocked off the Corolla; and the Honda Civic Hybrid nipped (a difference of $101) the Civic EX.   

            If the story ended there, the picture would be clear and simple. Once again, though, the outlook cloudied in 2007 as federal subsidies began to go away. You see, all of the cost of ownership comparisons quoted above were based on the existence of a generous tax credit for people who bought hybrids. Take the tax credit away, and suddenly six of the seven hybrid vehicles mentioned above had worse costs of ownership then their conventional counterparts.    

            While all of this may be confusing to prospective car buyers, there’s a strong message amid its murkiness: Now, you need to look at the vehicles on a case-by-case basis, considering such matters as vehicle features, federal tax subsidies, and the price of gasoline. No longer can we make the blanket statement that you buy a hybrid for the good of the environment, not for the good of your pocketbook.

            What’s more, if you’re an engineer (as are all of our 180,000 readers), there’s another factor to consider. Although there are no surveys to back this statement, I’m willing to bet that a majority of engineers take good care of their cars and keep them well past the 100,000-mile mark. And that’s important when considering hybrid vehicle economics because surveys such as Consumer Reports’ are based on 75,000 miles of operating costs. Keep your vehicle a little longer than that and you may be able to whittle away at the $5,000 initial premium that you pay for hybrid technology.

            The bottom line is that the dollars and cents of hybrids are no longer simple. The scales are tipping. Finally, people who are considering hybrids may have good economic reasons for doing so.  

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