Michigan State Police Say Most Speed Limits Are Too Low

Ronnie Schreiber
by Ronnie Schreiber
Michigan State Police photoIn his capacity as the former head of the MSP’s Traffic Services Section it was Lt. Gary Megge’s job to eliminate speed traps set up by local municipalities. A few years ago Megge told the Detroit News, “I’ve spent eight years in traffic services, and I was a crash reconstructionist for five years before that, so I’ve seen my share of fatal wrecks, and I can tell you: Deaths are not caused by speeding. They’re caused by drinking, drugs and inattentiveness. The old adage that speed kills just isn’t realistic. The safest speed is the speed that is correct for that roadway at a given time. A lot of speed limits are set artificially low.”The state police were one of the groups who backed, against the lobbying of municipalities, a change in Michigan law that required speed limits to be set based on actual traffic data and engineering studies. That law, Public Act 85 proposed to set limits based on what is known as the 85th percentile rule, a widely used measure that sets speed limits at how fast 85% of drivers travel safely. “It just doesn’t seem right to me that we would enforce a law where 90-98 percent of the people are in violation of it,” Lieutenant Megge told the DetNews in 2008. “It’s not the way we should do business in this country.”After that law was passed, cities, towns and villages, through the Michigan Municipal League, pointed out that the law didn’t specifically require traffic studies and lobbied against revisions to Public Act 85 that would force them to due such studies. At the time, Megge agreed with them, to a point. “There is nothing in the code that specifically requires a municipality to conduct traffic studies,” said Megge, “but enforcement of any law must match the criteria of the law,” technically making invalid those tickets issued on roads whose speed limits were not compliant with P.A. 85. The cities opposed using such studies because they almost invariably call for higher speed limits, potentially reducing revenue from speeding tickets. The revisions eventually passed in 2010.Since then, Lt. Megge’s job has been overseeing such compliance. Over his career he’s had a hand in the raising of over 400 speed limits across Michigan (though in a small number of cases the studies resulted in lower speed limits). By now there’s more than a decade’s worth of data from those raised speed limits and Megge insists that higher speed limits don’t mean that people drive significantly faster. They drive just as fast as they always did before, and just as safely. They just do so without risking points on their drivers’ licenses. The lieutenant says, “Over the years, I’ve done many follow up studies after we raise or lower a speed limit. Almost every time, the 85th percentile speed doesn’t change, or if it does, it’s by about 2 or 3 mph.”In addition to the fact that they don’t really do anything to promote traffic safety, Lt. Megge says that unreasonably low speed limits actually make roads less safe by diverting resources away from the kind of law enforcement that has measurable effect. Megge recommends, instead of zealous speed enforcement against drivers who are effectively safe, focusing on drunk drivers, red light runners, drivers and passengers who don’t buckle up, and, an important point, enforcing realistic speed limits against the small minority of drivers who unreasonably and excessively speed.Alex Mayyasi, at pricenomics.com, has an extensive look at how speeds limits have been and are being set, including an interview with Lt. Megge. As the good Prof. Reynolds says, read the whole thing, then come back here and share your views.Ronnie Schreiber edits Cars In Depth, a realistic perspective on cars & car culture and the original 3D car site. If you found this post worthwhile, you can get a parallax view at Cars In Depth. If the 3D thing freaks you out, don’t worry, all the photo and video players in use at the site have mono options. Thanks for reading – RJS
Ronnie Schreiber
Ronnie Schreiber

Ronnie Schreiber edits Cars In Depth, the original 3D car site.

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  • Petezeiss Petezeiss on Jul 28, 2014

    Started driving in the '70s and have garnered exactly one speeding ticket. If nefarious revenue conspiracy this be, hasn't much worked with me. Non-issue.

  • Tankinbeans Tankinbeans on Jul 28, 2014

    Increased speed limits on freeways would be nice, but I'd be afraid of merging. Not because I can't get up to the required speed within the confines of a typical Minnesota entrance ramp, but because I always get stuck behind the people who don't understand that getting to freeway speed is the who point of an acceleration lane - and usually hit the freeway at 40 mph. There's nothing more exciting, in an explosive diarrhea kind of way, than getting onto a 70 mph freeway going 40 mph merging in front of a 70 mph semi with nowhere to go. There have been times that I have hoped for a red light getting onto the freeway (as long as I'm first in line) so that I could get to speed and safely merge. When I have my druthers I usually hit any freeway at 75 mph.

    • Sgeffe Sgeffe on Jul 28, 2014

      See my post above!! Right down to having my day -- no matter how bad things may have gone at work -- being made a little brighter by being the first person out of the blocks. (Well..as long as nobody pulls into the lane prior to the break-off. Haven't had to ABS behind one of these fools yet, but it's a buzz-kill for sure!) It's one reason of many that I WILL have a V6 (or above) on the other end of my (lead) right-foot as long as I am able!

  • Dartdude Having the queen of nothing as the head of Dodge is a recipe for disaster. She hasn't done anything with Chrysler for 4 years, May as well fold up Chrysler and Dodge.
  • Pau65792686 I think there is a need for more sedans. Some people would rather drive a car over SUV’s or CUV’s. If Honda and Toyota can do it why not American brands. We need more affordable sedans.
  • Tassos Obsolete relic is NOT a used car.It might have attracted some buyers in ITS DAY, 1985, 40 years ago, but NOT today, unless you are a damned fool.
  • Stan Reither Jr. Part throttle efficiency was mentioned earlier in a postThis type of reciprocating engine opens the door to achieve(slightly) variable stroke which would provide variable mechanical compression ratio adjustments for high vacuum (light load) or boost(power) conditions IMO
  • Joe65688619 Keep in mind some of these suppliers are not just supplying parts, but assembled components (easy example is transmissions). But there are far more, and the more they are electronically connected and integrated with rest of the platform the more complex to design, engineer, and manufacture. Most contract manufacturers don't make a lot of money in the design and engineering space because their customers to that. Commodity components can be sourced anywhere, but there are only a handful of contract manufacturers (usually diversified companies that build all kinds of stuff for other brands) can engineer and build the more complex components, especially with electronics. Every single new car I've purchased in the last few years has had some sort of electronic component issue: Infinti (battery drain caused by software bug and poorly grounded wires), Acura (radio hiss, pops, burps, dash and infotainment screens occasionally throw errors and the ignition must be killed to reboot them, voice nav, whether using the car's system or CarPlay can't seem to make up its mind as to which speakers to use and how loud, even using the same app on the same trip - I almost jumped in my seat once), GMC drivetrain EMF causing a whine in the speakers that even when "off" that phased with engine RPM), Nissan (didn't have issues until 120K miles, but occassionally blew fuses for interior components - likely not a manufacturing defect other than a short developed somewhere, but on a high-mileage car that was mechanically sound was too expensive to fix (a lot of trial and error and tracing connections = labor costs). What I suspect will happen is that only the largest commodity suppliers that can really leverage their supply chain will remain, and for the more complex components (think bumper assemblies or the electronics for them supporting all kinds of sensors) will likley consolidate to a handful of manufacturers who may eventually specialize in what they produce. This is part of the reason why seemingly minor crashes cost so much - an auto brand does nst have the parts on hand to replace an integrated sensor , nor the expertice as they never built them, but bought them). And their suppliers, in attempt to cut costs, build them in way that is cheap to manufacture (not necessarily poorly bulit) but difficult to replace without swapping entire assemblies or units).I've love to see an article on repair costs and how those are impacting insurance rates. You almost need gap insurance now because of how quickly cars depreciate yet remain expensive to fix (orders more to originally build, in some cases). No way I would buy a CyberTruck - don't want one, but if I did, this would stop me. And it's not just EVs.