Illinois requires that work zone lane closures be set up in the direction of traffic flow. Vehicles used in this process may work out of the closed lane. Work zone take-down is done in the reverse … [Read more...] about Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Illinois
Lane lines in work zones
For standard applications, Illinois DOT's typical lane line width is 4 inches. ILDOT implements lane lines wider than the typical width in some cases. It is left to district preference to use wider … [Read more...] about Lane lines in work zones
Signing for the end of work zone
Illinois uses "END CONSTRUCTION" signs at the ends of work zones. If the location is also the end of a special work zone speed limit, then the "END CONSTRUCTION" sign is replaced with an "END WORK … [Read more...] about Signing for the end of work zone
Use of drone radar and automated flaggers in work zones
Illinois DOT has used drone radar in both urban and rural work zones, and it was perceived to be somewhat effective. One problem was that drivers soon realized that no police were present and they … [Read more...] about Use of drone radar and automated flaggers in work zones
Application of types of temporary/removable pavement marking material and special linestriping material
Illinois uses Type I or Type II nonremovable marking tape or paint at the option of the contractor, except paint is not allowed for final wearing surfaces unless authorized by the engineer for … [Read more...] about Application of types of temporary/removable pavement marking material and special linestriping material
Permit requirements to install/erect temporary traffic control warning signs and other temporary traffic control devices along roadways
Illinois requires a permit to install utilities on state right of way. These permits require utility companies or their contractors to use traffic control standards when doing work on or near a … [Read more...] about Permit requirements to install/erect temporary traffic control warning signs and other temporary traffic control devices along roadways