West Virginia uses "B-1" delineators every 20' mounted along the face (about 3/4 up). They can mount on top as an alternate, and various sizes are permitted. All delineators are attached by PVC … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Delineators
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Wisconsin has typically not used top-mounted object markers on portable concrete barrier. The normal practice is to use only side-mounted delineator reflectors at 20-foot spacing. On curved alignment … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Illinois Department of Transportation Highway Standards & District Specific Standards
These drawings show the details of various construction items and are used in conjunction with the Standard Specifications. The applicable Standards are referenced on the cover sheet of the plans. … [Read more...] about Illinois Department of Transportation Highway Standards & District Specific Standards
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Alabama requires a small, flexible plastic substrate marker mounted on the top of concrete barrier in construction work zones. These plastic markers are covered with silver Type III reflective … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Washington state has no requirement to put reflectors on permanent barrier. The state does, however, require them on any temp barrier 6" down on the face. A variety of manufactureres are approved. … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Delineation of Temporary Barriers in Work Zones, Volume II
The objective of the present study was to evaluate the effectiveness of various delineation systems for use on construction sites. It was determined that vertical panels and reflective cylinders were … [Read more...] about Delineation of Temporary Barriers in Work Zones, Volume II