EntityQ2864· pop 19· linked from 260 articlescat's eyeSign in to saveretroreflective safety device used in road markingConnectionsroundaboutEntityHalifaxEntityroad surface markingEntityretroreflectorEntityroad typeEntityWorld War IIConceptInternational Standard Book NumberEntityWorld Wide WebEntityBBCConceptfogEntityavalancheEntityconcreteEntitytramEntityWayback MachineEntitytunnelEntitycontrolled-access highwayEntitytraffic lightEntityEssexEntityJames CallaghanEntityConcordeEntityCategories20th-century inventionsEnglish inventionsRoad infrastructureRoad surface markingsTraffic signs