【单选题】Whatmightd rivingonanautomatedhighwaybelikeTheanswerdependsonwhatkindofsystemisultimatelyadopteD、TwodistincttypesareonthedrawingboarD、Thefirstisaspecialpurposelanesystem,inwhichcertainlanesarereservedforautomatedvehicles.Thesecondisamixedtr afficsystem:fullyautomatedvehicleswouldsharetheroadwithpartiallyautomatedormanuallydrivencars.A、special-purposelanesystemwouldrequiremoreextensivephysicalmodificationstoexistinghighways,butitpromisesthegreatestgainsinfreeway(高速公路)capacity.Undereitherscheme,thedriverwouldspecifythedesireddestination,furnishingthisinformationtoacomputerinthecaratthebeginningofthetr iporperhapsjustbeforereachingtheautomatedhighway.Ifamixedtr afficsystemwasinplace,automateddrivingcouldbeginwheneverthedriverwasonsuitablyequippedroads.Ifspecial-purposelaneswereavailable,thecarcouldenterthemandjoinexistingtr afficintwodifferentways.Onemethodwoulduseaspecialon-ramp(入口引道).Asthedriverapproachedthepointofentr yforthehighway,devicesinstalledontheroadsidewouldelectr onicallycheckthevehicletodetermineitsdestinationandtoascertainthatithadtheproperautomationequipmentingoodworkingorder.Assumingitpassedsuchtests,thedriverwouldthenbeguidedthroughagateandtowardanautomatedlane.Inthiscase,thetr ansitionfrommanualtoautomatedcontr olwouldtakeplaceontheentr anceramp.Analternativetechniquecouldemployconventionallanes,whichwouldbesharedbyautomatedandregularvehicles.Thedriverwouldsteerontothehighwayandmoveinnormalfashiontoa"tr ansition"lane.Thevehiclewouldthenshiftundercomputercontr olontoalanereservedforautomatedtr affiC、(Thelimitationoftheselanestoautomatedtr afficwould,presumably,bewellrespected,becausealltr espassers(非法进入者)couldbeswiftlyidentifiedbyauthorities.)Eitherapproachtojoiningalaneofautomatedtr afficwouldharmonizethemovementofnewlyenteringvehicleswiththosealreadytr aveling.Automaticcontr olhereshouldallowforsmoothmerging,withouttheusualuncertaintiesandpotentialforaccidents.Andonceavehiclehadsettledintoautomatedtr avel,thedriverwouldbefreetoreleasethewheel,openthemorningpaperorjustr elax.Weknowfromthepassagethatacarcanenteraspecial-purposelane______.A、bysmoothlymergingwithcarsontheconventionallaneB、bywayofarampwithelectr oniccontr oldevicesC、throughaspeciallyguardedgateD、afteralltr espassersareidentifiedandremoved
【单选题】Whatmightd rivingonanautomatedhighwaybelikeTheanswerdependsonwhatkindofsystemisultimatelyadopteD、TwodistincttypesareonthedrawingboarD、Thefirstisaspecialpurposelanesystem,inwhichcertainlanesarereservedforautomatedvehicles.Thesecondisamixedtr afficsystem:fullyautomatedvehicleswouldsharetheroadwithpartiallyautomatedormanuallydrivencars.A、special-purposelanesystemwouldrequiremoreextensivephysicalmodificationstoexistinghighways,butitpromisesthegreatestgainsinfreeway(高速公路)capacity.Undereitherscheme,thedriverwouldspecifythedesireddestination,furnishingthisinformationtoacomputerinthecaratthebeginningofthetr iporperhapsjustbeforereachingtheautomatedhighway.Ifamixedtr afficsystemwasinplace,automateddrivingcouldbeginwheneverthedriverwasonsuitablyequippedroads.Ifspecial-purposelaneswereavailable,thecarcouldenterthemandjoinexistingtr afficintwodifferentways.Onemethodwoulduseaspecialon-ramp(入口引道).Asthedriverapproachedthepointofentr yforthehighway,devicesinstalledontheroadsidewouldelectr onicallycheckthevehicletodetermineitsdestinationandtoascertainthatithadtheproperautomationequipmentingoodworkingorder.Assumingitpassedsuchtests,thedriverwouldthenbeguidedthroughagateandtowardanautomatedlane.Inthiscase,thetr ansitionfrommanualtoautomatedcontr olwouldtakeplaceontheentr anceramp.Analternativetechniquecouldemployconventionallanes,whichwouldbesharedbyautomatedandregularvehicles.Thedriverwouldsteerontothehighwayandmoveinnormalfashiontoa"tr ansition"lane.Thevehiclewouldthenshiftundercomputercontr olontoalanereservedforautomatedtr affiC、(Thelimitationoftheselanestoautomatedtr afficwould,presumably,bewellrespected,becausealltr espassers(非法进入者)couldbeswiftlyidentifiedbyauthorities.)Eitherapproachtojoiningalaneofautomatedtr afficwouldharmonizethemovementofnewlyenteringvehicleswiththosealreadytr aveling.Automaticcontr olhereshouldallowforsmoothmerging,withouttheusualuncertaintiesandpotentialforaccidents.Andonceavehiclehadsettledintoautomatedtr avel,thedriverwouldbefreetoreleasethewheel,openthemorningpaperorjustr elax.Weknowfromthepassagethatacarcanenteraspecial-purposelane______.A、bysmoothlymergingwithcarsontheconventionallaneB、bywayofarampwithelectr oniccontr oldevicesC、throughaspeciallyguardedgateD、afteralltr espassersareidentifiedandremoved
