If you drive a elevator car , you ’ve undoubtedly had at least a few frustrative or shivery experience with really spoiled driver — you know , the bozo behind you who cross the double - jaundiced line to make a sudden whip - around pass into oncoming dealings . Or the one who blithely taps thebrakeand revolve through a stop mark , instead of come to a full period . Never mind the customary speeders , the tailgater or the absentminded menace who seem to have bury how to use a number signaling .

Indeed , in a 2011 written report conducted by GMAC Insurance , closely one in five drivers were n’t able-bodied to pass a write test of canonic drive noesis , the sort that license applicants take . But even though most hoi polloi excrete , there were some dazzling gaps in critical areas . Eighty - five pct of those tested , for model , could n’t name the right thing to dowhen approaching a yellow traffic light , and only one in four knew how to calculate thesafe distance for following a fomite .

The estimation of requiring experient automobilist to regularly demo their competence is n’t something that ’s ever been conducted on a widespread basis in the U.S. , where some states did n’t even ask tiro drivers to pass a route testuntil the fifties . Only one province , Illinois , has a law mandate road science tests for license renewals , and that ’s only for motorists who ’ve reached age 75 . ( New Hampshire once had a similar old age - relate testing requirement , butrepealed it in 2011 . ) As this2014 Pennlive.comstory details , Pennsylvania randomly choose a small sample of the state ’s 45 - and - older driver and requires them to undergo additional aesculapian andvisionexams ; base on those results , they might have to take a driving examination as well . Additionally , a handful of other state — Iowa , Missouri , Michigan and California — allow functionary to selectively require road tests for license holders whom they have reason to believe might be dangerous . That ’s according to this compendium of driver permit practice of law byClaims JournalandAAA .

Drivers license, retest

In Iowa , for example , " number one wood with valid license may be ask to manifest their ram ability prior to renewal due to change in their wellness , " Andrea Henry , conductor of strategical communications and insurance policy for theIowa Department of Transportation , explain in an electronic mail . " This includes physical and mobility conditions , as well as reduced vision and cognitive issues . " While data point on how many retests are conducted was n’t available , most of those drivers end up get renewal anyway , though many have restricted prerogative such as a lower personal speed point of accumulation or daytime driving only .

So Many Drivers, So Little Time

One obvious trouble with regularly retesting experient drivers — who numberedaround 210 millionin 2009 , the most recent class for which Federal Highway Administration data point was available — is that they ’d have to get in line with all the first - time applicants . That would create even retentive lines at testing station that already have their hands full coping with nervous adolescents struggle to perform manoeuvre such as the dreadedreverse two point turnabout , without make those little lily-livered cones .

A lot of those youthfullicenseapplicants cease up coming back for retests themselves . As this2011 National Highway Traffic Safety Administration studyfound , an frightful lot of those newbies bomb on the first try — in California , for model , 42.7 percent of applicants flunk the knowledge test , while 32 percent bombed out on the skills trial run . ( The high-risk cognition test execution was in Missouri , with a 61.4 pct bankruptcy rate , while Maine ’s would - be motorists did the worst in repulse skills , with 40 pct not make the grade . )

This is all true , even though the U.S. generally has drive tests that are a spate easier than the ones used by the eternal sleep of the human race , NHTSAfound . In the Canadian state of British Columbia , for example , would - be driver have to undergo 45 minute of testing on several different types of route , and also must verbally describe what specific route hazard are now beside , one block ahead , and behind their vehicles , to test their cognisance .

There is n’t a lot of grounds that additional testing over the years necessarily would improve refuge on the roads . As the Insurance Institute for Highway Safetyexplains , bailiwick have yielded conflicting event on the question of whether age restrictions reduced the rate of crashes — in Illinois , they did , but in New Hampshire , they did n’t . And as this2017 AAA research briefshows , the rate of hurt - causing crash per 100 million miles beat back actually is highest among teenage drivers , and then decreases and levels out for decade before start to stand up again slightly among people in their 70s and LXXX . That ’s not the pattern that you would see if many people see their driving skill or cognition degenerate importantly in mediate age .

Retesting Does Not Increase Safety

" Retesting ( if you give out the test you turn a loss the permit ) has been establish to have nil safe wallop on the drivers involved , " Jake Nelson , AAA ’s music director of dealings safety advocacy and inquiry , says via email . " And , it has been show to reduce mobility by path of driver voluntarily giving up their licenses due to fear of getting them taken away rather than any legitimate concerns about their driving . "

" There is no justification through information / enquiry for testing or riddle at a certain years , " Nelson articulate .

Gary Biller , chair of theNational Motorists Association , a countrywide advocacy mathematical group , is likewise sceptical about the value of retesting experienced machine driver . " Safety statistics consistently show that the accident rates of driver 70 years of age and older are not much different than those in the 35 to 69 age group , " he writes in an e-mail .

" By line , equipment driver vernal than 35 are at the gamey hazard of chance event , " Biller continues . " That indicates a couple of things . One is that experience behind the wheel is one of the most of import factors for safe drive . Another is that state requirements for the replacement of driver ’s licenses are reasonable . Those requirements vary state by DoS , but generally let in more frequent relicensing and visual sensation tests once a machine driver reaches 65 , 70 or , in some case , 75 years of eld . "

" The NMA does n’t consider that states involve to increase licensing requirement for older drivers beyond current standards , " Biller excuse . But he does think there could be value in leave officials the choice of re - examine at certain potentially knotty driver . " There should be an objective procedure through which the licensing agency could be petitioned to do an rating of a give license holder establish on first - hired hand knowledge of household members , a law enforcement agency , or the courts . In fairness , there should also be an appeal outgrowth for the person who is in endangerment of losing his or her license or having it restricted . "

That approach might offer some protection against the most clearly spoil , potentially severe drivers out there . But as for the driver who desecrate the ruler because they retrieve they can get away with it , you ’re plausibly just go to have to continue to be wary of them .