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
Traffic Signs
Summary of Treatments to Improve Work Zone Speed Limit Compliance
This is the summary report of the Texas Department of Transportation (TxDOT) sponsored Project 0-4707: Development of Measures for Motivating Drivers to Comply with Speed Limits in Work Zones. The … [Read more...] about Summary of Treatments to Improve Work Zone Speed Limit Compliance
Retroreflectivity – The Latest
The AASHTO Board of Directors recently recommended a change in Section 406 of the present law regarding establishment of minimum retroreflectivity values for signs and pavement markings. This would … [Read more...] about Retroreflectivity – The Latest
Maintenance of Signs and Sign Supports: A Guide for Local Highway and Street Maintenance Personnel
Highway signs are the means by which the road agency communicates the rules, warnings, guidance and other highway information that drivers need to navigate their roads and streets. This guide, which … [Read more...] about Maintenance of Signs and Sign Supports: A Guide for Local Highway and Street Maintenance Personnel
Sign Policy
The Oregon Department of Transportation provides and maintains signs on the state highway system including: Directional Regulatory Warning Informational ODOT's Sign Policy … [Read more...] about Sign Policy
Iowa DOT Standard Road Plans
The standard road plans contained in this manual (commonly referred to as the "Red Book") have been developed to show standardized design features, construction methods and approved materials to be … [Read more...] about Iowa DOT Standard Road Plans