1993 GMC Suburban Owner's Manual - Page 211

AN461005 Mileformile,freeways(also called thruways,parkways,expressways, turnpikes,orsuperhighways)arethesafest of allroads.Buttheyhavetheir ownspecialrules. Themostimportantadvice on freewaydriving is: Keepupwithtraffic and keepto the right.Driveatthesamespeedmost of theotherdriversare driving.Too-fastortoo-slowdrivingbreaksasmoothtrafficflow.Treattheleft laneonafreewayasa passing lane. Entering ifhe Freeway At the entrancethere is usuallyarampthatleads to thefreeway. If youhave aclearview of thefreewayasyoudrivealongtheentranceramp,you to blend should begin to checktraffic. Try todeterminewhereyouexpect with the flow. If trafficislight,youmayhave no problem.But if it is heavy, find agapasyoumovealongtheenteringlane and timeyourapproach. Try to merge into thegap at close to theprevailingspeed.Switchonyour turn signal,checkyourrearviewmirrors as you move along, and glanceoveryour shoulder as often asnecessary. Try to blend smoothlywiththetrafficflow. Driving on the Freeway Once you are on thefreeway,adjustyourspeed to the posted limit or to the you want to pass. If prevailingrate if it'sslower.Stay in therightlaneunless youareonatwo-lanefreeway, treat therightlane as theslowlane and the left lane as the passing lane. If you are on athree-lanefreeway,treatthe rightlaneastheslower-speedthroughlane, the middle lane as the higher-speed through lane, and theleftlaneasthe passing lane. 4-43