STARTINGANDDRIVING
•Thelanelineistoothin,damagedorfuzzy;oldand
newmarkingsoverlap;roadsectionswithoutlanelines,
suchasnon-standardizedroadsandconstructionareas;
speciallanelines,suchasdecelerationcuelines,guide
lines,etc.;
•Rain,snow,fogandotherlowvisibilityweather;
lowlightintensityatnight,directsunlight,orbacklit
environment;dusty/crosswindconditions;roadways
whereobjectscastlargeshadowsonthelane;
•Congestedtrafc;poorroadconditionssuchasbumpy,
slippery,crackedoricyroadsurfaces;
•Thevehicleisdrivingonthecurvewithasmall
curvatureradiusorontoonarrowortoowideroad;
uphillanddownhillroadwayscenarios;specialroads,
suchastunnels;thepresenceofedgesorother
high-contrastlinesontheroadsurfaceotherthanlane
lines,suchaspavementseams,kerbs,etc.;
•Insufcientlengthofon-andoff-rampapproaches;
complexterrainatroadwayforks;speciallanechanges
suchaslanemerges,reroutes,anddiversions;
•Thevehiclehasjustenteredtheroadsectionwithlanes
orhaspassedtheroadsectionwithoutlanelines;
•Fastcut-invehiclesincloseproximity;fastcut-out
vehicles;rapidlyapproachingsideandrearvehicles;
vehiclespartiallyencroachingonthelanetargetedfor
lanechange;
•Thevehiclemakesrapidlanechangeorlateralsway;
duringalanechange,avehicleintheadjacentlaneand
thisvehiclechangelanestothecentreatthesame
time,oravehiclefrombehindacceleratesuddenlyto
overtakeavehicle;
•Guardrails,crashpiers,etc.atoff-rampsorbifurcations;
•Stationaryorslow-movingvehiclesandlateralvehicles
ahead;staticobstacles,suchasencounteringwithroad
constructionfacilitiesintheroad(trafccones,trafc
barrels,trafcbollards,warningtriangles,orother
roadblocks);
•Animals,wallsandotherunidentiedobstacles;
•Specialvehicles,suchasdamagedvehicles,irregularly
shapedvehicles;
•Crossingpedestrians,vehicles,bicycles,motorcycles,
tricycles,andoncomingtrafcintheoppositedirection;
•Obscuredwindscreen(bywaterspray,dustorsticker,
etc.);cameraunabletofocus,cameraunableto
calibrate,andcamerafailureduetoweatherdamage
177
5