According to a limited and (admittedly) flawed NHTSA study, hybrid cars seem to hit twice as many pedestrians as non-hybrids in certain low-speed maneuvers. The reason? Hybrids are nearly silent when operating in electric-only mode.
Are hybrid cars REALLY stalking pedestrians? NHTSA says "probably"
Specifically, the study states that:
…[when] a vehicle is slowing or stopping, backing up, or entering or leaving a parking space, a statistically significant effect was found due to engine type. The HEV [hybrid electric vehicle] was two times more likely to be involved in a pedestrian crash in these situations than was an ICE [internal combustion engine] vehicle…the incidence rate of bicyclist crashes involving HEVs [hyrbids] was significantly higher…
The data that this report is based on was only taken from a small number of states (13) and over the course of a relatively short time period (8 years). Therefore, the study is far from conclusive (and NHTSA has said as much).
But do we really need a study to “prove” that hybrids hit more people? Doesn’t it seem sort of self evident? Ask yourself the following questions:
- When walking, do you rely upon your ears to alert you to vehicles outside of your peripheral vision?
- Have you ever honked your horn when backing out of a low visibility parking space, pulling into an alley, or coming around a corner in a parking garage?
- If you’ve driven a hybrid, have you ever accidentally “snuck up” on a pedestrian and scared them?
Chances are good that you can answer yes to 2 or 3 of these questions…here’s why.
You’re a human who uses your EARS. Hearing is one of two really important senses that people use while driving. It’s why our cars have horns. It’s why ambulances have sirens. It’s why it’s illegal in most places to drive your car while wearing headphones. It’s why there are laws against really loud stereos and exhaust systems.
While hybrid advocates are quick to point out that the study results could be explained by poor visibility, and that the study data is significantly flawed, (and they’re right), do we really care? Isn’t it obvious that hybrids don’t make noise and that as a result some pedestrians get hit?
There are three options going forward:
- Mandate that hybrids make noise via some sort of regulation.
- Conduct a better study.
- Do nothing.
Option 3 is probably off the table, but just for grins let’s consider it. While hybrids were 50% more likely to hit pedestrians according to the flawed study, the total incident rate was less than 1% of all vehicle crashes. In other words, as bad as it could be, it pales in comparison to other problems. Animal strikes (cows, deer, elk, etc.) injure FAR more people than hybrids hitting people in parking lots. Maybe our energy is better spent elsewhere.
Option 2 is less likely. Most people aren’t going to critically evaluate the current study, so they’re probably never going to learn that it’s flawed and that a better study is needed. Such is politics in America.
Option 1 seems most likely. It’s very easy for NHTSA and/or Congress to instruct auto manufacturers to add a noise maker to hybrids while operating in electric mode.
What do you think – which option makes the most sense? Is there an option missing?
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I agree that at low speeds under 20 mph the prius should make some kind of noise all the time whether it be a beep, beep, beep at very low levels or an engine roar sound at very low levels so as to still hear it running on electric only and still not be annoying and loud to the driver inside. My neighbor has one of those darn prius’s and he snuck up on me in my driveway one time while I was working on something and he beeped the horn and scared me to death since I did not see or hear him drive up my driveway since absolutely quiet on electric only. Even if it saves 1 life of a pedestrian or bicyclists, the low noise level being heard is worth it. So, toyota – make some noise!!!!!