Portable concrete barrier (PCB) systems are often used to redirect errant vehicles through a combination of inertial resistance, lateral friction loads, and tensile loads developed from the mass and … [Read more...] about Length of Need and Minimum System Length for F-Shape Portable Concrete Barrier
Temporary Concrete Barriers
Development of a MASH TL-3 Transition Between Guardrail and Portable Concrete Barriers
Often, road construction causes the need to create a work zone. In these scenarios, portable concrete barriers (PCBs) are typically installed to shield workers and equipment from errant vehicles as … [Read more...] about Development of a MASH TL-3 Transition Between Guardrail and Portable Concrete Barriers
Guidelines on the Use of Low-Profile Portable Concrete Barrier in Low to Moderate Speed Work Zones
This guideline highlights use of a low-profile concrete barrier (LPB) in low to moderate speed work zones. The low profile barrier enhances line of sight for drivers, especially where work zones and … [Read more...] about Guidelines on the Use of Low-Profile Portable Concrete Barrier in Low to Moderate Speed Work Zones
Guidelines on the Use of Low-Profile Portable Concrete Barrier in Low to Moderate Speed Work Zones
September 2015 Introduction Transportation agencies consider or specify the use of positive protection devices on a variety of project types. Some of the most common needs for protection … [Read more...] about Guidelines on the Use of Low-Profile Portable Concrete Barrier in Low to Moderate Speed Work Zones
Work Zone Positive Protection Guidelines for Idaho
The Code of Federal Regulation (CFR) Title 23 Part 630 Subpart K - Temporary Traffic Control (630.1102–630.1110) rule states that positive protection shall be considered where work zone conditions … [Read more...] about Work Zone Positive Protection Guidelines for Idaho
Pinned-Down Temporary Concrete Barrier With Transition Systems for Limited-Space Work Zone Applications
In work zones where space for placing temporary concrete barrier is very limited (such as bridge expansion or repair), the barrier must be restrained to prevent large lateral deflection due to vehicle … [Read more...] about Pinned-Down Temporary Concrete Barrier With Transition Systems for Limited-Space Work Zone Applications