814068PDFTech ReportTraffic controlTraffic control devicesRoad markingsManualsDevelopmentSurveysTraffic signsLiterature reviewsState of the practiceCitiesCountiesMaintenanceIowaIowa State University. Center for Transportation Research and EducationAndrle, Stephen J.Knapp, KeithMcDonald, TomSchechinger, Raen J.Smith, DuaneAnderson-Wilk, MarkIowa State University. Center for Transportation Research and EducationIowa. Dept. of TransportationIowa. Highway Research BoardNTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLSNTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control DevicesNTL-REFERENCES AND DIRECTORIES-REFERENCES AND DIRECTORIESUS Transportation CollectionThe purpose of this project was to develop and distribute a manual th...