From Illinois Department of Transportation Standard Specifications for Road and Bridge Construction: "701.13 Flaggers. All flaggers shall be certified by an agency approved by the Department. ... … [Read more...] about Flagger training and certification requirements
Illinois
Vehicle warning lights
The Illinois DOT past research regarding vehicle warning lights has not been formally documented. Since the early 1990s, I-DOT has used strobe lights. Prior to that, rotating lights were used. In … [Read more...] about Vehicle warning lights
Traffic control for volunteer litter pickup crews
Illinois DOT has an agreement with all of its Adopt-A-Highway groups. Workers are not to be on roadway pavement at anytime. Vehicles are to be parked in a predetermined parking area, which is … [Read more...] about Traffic control for volunteer litter pickup crews
Removing temporary traffic control devices with the flow of traffic vs. backing the work vehicle behind to remove the devices
Illinois allows removal of channelizing devices with the flow of traffic if the process is done using truck-mounted attenuators on vehicles in front of the removal process (very similar to TA-35 in … [Read more...] about Removing temporary traffic control devices with the flow of traffic vs. backing the work vehicle behind to remove the devices
Measuring work zone performance
Illinois DOT is looking at measurements for work zone performance based on the following: 1. Delays caused by work zones shall not exceed more than 5 minutes per mile with a maximum of 30 minutes … [Read more...] about Measuring work zone performance
Center lane closure
Illinois typically uses Design Standards 701400 and 701446 to divert three lanes of traffic into one. If there is not a time of day when traffic volumes would allow a single lane open, the shoulder … [Read more...] about Center lane closure