trip per cartrip per householdtrip per vehicletrip productiontrip purposetrip tabletriple alternate signal systemtripodtrollytropictropic tidetropical climatetropical revolving stormtrough form profiletrough sectiontrough spillwaytroweltrowel finishtrowelingtrucktruck agitatortruck climbing lanetruck cranetruck dimensiontruck drivertruck escape ramptruck loadingtruck loading areatruck loading docktruck mixed concretetruck mixertruck registrationtruck routetruck sizetruck stoptruck terminaltruck terminal facilitiestruck traffictruck trailertruck typetrue diptrue factor safetytrue stresstrue stress strain diagramtrue velocity of groundwatertrumpettrumpet interchangetrumpet junctiontrunktrunk road