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
Temporary Barriers
End Treatment for Concrete Barriers Used in Work Zones
An end treatment was developed and crash tested to shield the ends of the concrete safety shape barrier (CSSB) and other narrow rigid objects. It was designed as a temporary treatment for use … [Read more...] about End Treatment for Concrete Barriers Used in Work Zones
Development of a Plan for Compliance with NCHRP 350 for Temporary Concrete Barriers
The Federal Highway Administration (FHWA) has mandated that TCBs used on federally funded projects on the National Highway System (NHS) advertised after October 1, 2002 shall meet the requirements of … [Read more...] about Development of a Plan for Compliance with NCHRP 350 for Temporary Concrete Barriers
Lighted Guidance Tube Evaluation
This report summarizes the evaluation of the Lighted Guidance Tube (LGT), a 3M product used to delineate a temporary detour curve section on the Eddyville-Cline Hill Section construction project. The … [Read more...] about Lighted Guidance Tube Evaluation
Development of an NCHRP Report 350 TL-3 New Jersey Shape 50-Inch Portable Concrete Barrier
For roadside work-zones in areas that have opposing traffic flow, safety is enhanced if the temporary barriers incorporate a glare-shield that blocks headlight glare from oncoming traffic. … [Read more...] about Development of an NCHRP Report 350 TL-3 New Jersey Shape 50-Inch Portable Concrete Barrier
Placement Guidance for Temporary Concrete Barriers in Construction Work Zones: Developed with Roadside Safety Analysis
An important design decision in construction work zones concerns the use and placement of temporary barriers. The temporary concrete safety shaped barrier is the option preferred by most state … [Read more...] about Placement Guidance for Temporary Concrete Barriers in Construction Work Zones: Developed with Roadside Safety Analysis