byavarietyofreasons, suchasdrivers'drinkingtoomuch, tirednessandspeeding,
53.____________(especial)onarainyday.54.____________isreportedthatthetwopeaksofaccidentsoccurinspringandsummer,
thetwoseasons55.____________(have)mostoftheyear'srain.Itisbecausetheycan'tconcentrateondriving.
As56.____________resultoftrafficaccidents,
somedriversorpassengershavebecomedisabled, andsomeevenhavetheirlivesclaimed(¶áÈ¥
),
whichnotonlycauseagreat57.____________(lose)
ofproperty,
butalsobringendlesshurttotheirfamiliesandabigburdentothewholesociety.
Therefore,
bynomeanscanwedriveafterdrinking.Whenwefeelverytired,
weshouldstopdrivingaswell.What'smore,
becautious58.____________youdriveacaronrainydays.
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Inthepopularimagination, theriseofself-drivingcarswillmeangreenercities, saferroads, andreaccelerating
andhappierworkers.Withtechnology,
¡ª
speeding,
braking,
whichareresponsibleformuchofthegasburnedonroads,
todayandtheresultingairpollution¡ªwouldbeamemory.Butdespitetheseopportunities, therearecertainreasonswhydriverlessvehiclesmayfailtoliveuptosomeoftheseexpectations, oratleasttakealittlewhilelongertoachievethem.
First,
trulyautomatedtechnology
¡ª
atleastthekindthatrequiresnohumaninvolvement¡ªisrareineverysectoroftheeconomy, andthere'slittlereasontothinkdrivingwillbeanydifferent.Thereisapermanentneedforahumanbackupincaseiving(
ºó
Ô®
),
thatmeanshumandriverswillstillbearthefinalresponsibilityforthecarsthey'reridingin.
Arelatedchallenge
¡ª
particularlyfordriverlesscars
¡ª
isthecomplexityofthesystemsinvolved.Forexample, somecarstodayrequireover100millionlinesofsoftwarecode(tokeepthemrunning.Morecodemeansmorefunctions,
which,
´ú
Âë
)
tosomedegree,
alsomeansmoreopportunitiesforsoftwareerrors.Driverlesscarsraiseachallengeinthisregardandpossiblycausemoreopportunitiesforerrors¡ªerrorsthatcanleadtoaccidents.
Yetthegreatestchallengefacingdriverlesscarsisn'ttechnological,
butpsychological.Surveysconsistentlyrevealglobalskepticismaboutthetechnology.Americans,
forexample,
remainmoreworriedthanexcitedbydriverlesscars.OverhalfoftheAmericanpublicsaysitwouldnotrideonegiventheopportunity.Thisshowsadeep-seatedlackoftrustinthetechnology.Similarideashavebeenexpressedworldwide.
What'smorelikelyisthathumandriverswillcontinueapplyingsomecontrolovertheircars,
regardlessofhowautomatedthosecarsare.Somemayquarrelwiththisidea.Butautomakershavelongbeenpreparingforit.JustaskNissan,
Waymo,
andZoo,
allofwhichareexploringwaysforhumandriverstoretakecontrolofacarshouldautomationfail.Inotherwords, driverlessdoesnot¡ªandwillnot¡ªmeanhumanless.
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ [²Î¿¼·¶ÎÄ]
Contrarytopeople'svisionofabettercitylife,
self
-
drivingcarsareontheroadtonowhere.(񻵋1) First, likeauto-machinesinotherfields, driverlesscarsareliterallynotcompletelyindependentofhumans.(񻵋2) Besides, demandingcomplicatedtechnology, suchcarscanbeathreatifapossibleerroroccurs.(񻵋
3)
Trustissuesforhumanlesscars,
however,
remainsamajorconcern.That'swhyautomakersareseekingwaystoallowdriversmorecontrolontheirvehicles.(񻵋4)
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