Speed Bumps Don't Do Environment Any Favors

Speed_bump

Our friends from across the pond have some bad news: Speed bumps are pretty lousy for the environment.

Britain’s Automobile Association recently tested a vehicle that gets 58 miles to the gallon, running it over speed bumps and at a strict 20 miles-per-hour speed limit the rest of the time. The experiment found that the car’s gas mileage fell from 58 mpg (when traveling 30 mph or more) to an astonishing 31 mpg—a drop of nearly 50% when adjusting speed for the speed bumps.

Furthermore, the Automobile Association found that lowering the speed limit to 20 mph on a given road raised both emissions and fuel consumption by 10%. All of this confirmed findings from the UK’s Transport Research Laboratory, which stated that carbon monoxide and nitrous oxide emissions increased by 82% and 37% respectively on roads with speed bumps.

Still, few other options for slowing traffic exist. Speed bumps serve a practical purpose, and it’s difficult to see what might replace them. I guess what we’re saying is: The race for green speed bump is on.

Speed Bumps are Bad for the Planet (Autoblog)

Comments 

Infosaur

Gee I bet nobody will admit to THIS test. Hey here's another idea, Fuel economy/enviromental impact of all the stop signs and stoplights that spring up like weeds all over the suburbs.

I wouldn't mind automatically deploying stop sticks every time someone is going 50 in a residential neighborhood (or blasting their stereo so that the objects inside houses vibrate). Behaviour would improve once they had to replace a couple of sets of tires.

I wrote to senators on many ocasions to stop spread of stop signs and speed bumps. And also lowering speed limit. But speed limit doesn't have big impact. Nobody drives speed limit anyway.
Townships have no limits on their actions.

Mart

Although everybody hates them, if you really want to slow people down, you need to use those "average speed cameras" that have started popping up in Europe. Instead of catching you at a specific place doing a specific speed they measure your speed between 2 preset points up to a couple of miles apart and if your average speed is over the speed limit you get a ticket.

Personally I hate them, but they will reduce the need to slow and accelerate that is causing this drop in economy and rise in emissions.

Regular speed cameras still cause people to slow for them (and accelerate after) but these average speed cameras mean you have to drive at a steady speed, meaning maximum efficiency, i guess...

Kill the planet through increase pollution or save a life with speed bumps. A delicate balance.

Just walk to the corner, take your kids to the park or backyard to play instead of the street and build elevated walkways in congested areas.
Designate a no car zone for schools so parents can bring kids to get dropped off and not worry about being run over.

Just say'en...Do it for the kids.

Infosaur

See here's my problem I don't have kids. But I'm pretty sure my parents didn't let me run in the street.

Actually the best (and cheapest) way to stop speeding is to take an old patrol car (the one with the blown motor for example?) and park it conspicuously in the street. Perhaps you can even stick a manaquin inside.

But then that wouldn't generate any revenue.

J

What's next? Stop signs and red lights make us burn more gas by slowing down a vehicle > making them idle > and accelerate again?

David

Every policeman/city official will tell you speeding ticketes are issued in the name of safety. I don't believe that's true. I believe speeding tickets are simply a huge source of revenue, and here's why: If speeding tickets were simply a matter of safety, then the fine for speeding would cost an offender somewhere in the neighborhood of $5,000 to $10,000 per offense. People speed because the consequences are not great enough to deter them. Would you speed, knowing if you got caught, it would cost you $100 to $150? Judging by the number of speeders on the road, the answer is, "yes." Would you speed, knowing if you got caught, it would cost you $5,000 to $10,000? I think installing the "speed bump" in the wallet would be more effective than installing them in the streets.

Check out www.KeepKidsAliveDrive25.org for information on how to mobilize your neighborhood to address speeding. Keep Kids Alive Drive 25 has worked with over 1000 communities in 47 states in its 10-year history.

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