Washington DOT allows the use of contractor identification signs on projects and has developed criteria for their use. There are two signs that are used and the criteria can be viewed at the following … [Read more...] about Contractor identification sign in work zones
Traffic Signs
Driver Performance Comparison of Fluorescent Orange to Standard Orange Work Zone Traffic Signs
Some agencies use durable fluorescent orange sign sheeting on warning signs in work zones. The literature shows that such sheeting is more conspicuous than standard nonfluorescent orange sheeting, but … [Read more...] about Driver Performance Comparison of Fluorescent Orange to Standard Orange Work Zone Traffic Signs
Reflectorized Devices for Driver Information. Introduction
This circular presents 8 summaries of areas requiring research in the field of reflectorized devices. The problem areas have been identified as follows: snowplowable raised pavement markers; sign … [Read more...] about Reflectorized Devices for Driver Information. Introduction
Evaluation of Modified Work Zone Traffic Control Devices at Business Accesses
Modified work zone traffic control devices at business accesses were evaluated on two Oregon Department of Transportation (ODOT) projects in 1999 and 2000. In Sweet Home, Oregon, on the Sweet-Home WCL … [Read more...] about Evaluation of Modified Work Zone Traffic Control Devices at Business Accesses
Fluorescent Yellow-Green Background for Vehicle Mounted Work Zone Signs
This presentation shows and explains the typical advance warning sign historically used by Iowa DOT Maintenance and the benefits of adding fluorescent yellow-green backing. … [Read more...] about Fluorescent Yellow-Green Background for Vehicle Mounted Work Zone Signs
Switched from Construction/Engineering Grade sheeting to High-Intensity sheeting for barrels and barricades
Georgia has changed its standard to high-intensity sheeting for barrels and barricades. … [Read more...] about Switched from Construction/Engineering Grade sheeting to High-Intensity sheeting for barrels and barricades