Detailed guidelines for the construction and inspection of dowel bar retrofit (DBR) projects are provided in this Washington State Department of Transportation (WSDOT) report. Essential steps include cutting slots, removing existing concrete, cleaning slots, applying silicone sealant, placing dowel bars, and patching with concrete material. The study emphasizes the importance of proper dowel bar placement tolerances and the use of diamond grinding to restore pavement smoothness. Additionally, managing slurry is highlighted to ensure environmental compliance.

This database provides data regarding dowel bar retrofit (DBR) projects including state, letting date, location, number of bars and project number.

In Buena Vista County, Iowa, a study sponsored by the Iowa Highway Research Board and Iowa Department of Transportation evaluated different dowel bar materials for local road pavements. The project, conducted by Iowa State University, included diamond grinding to improve the international roughness index and reduce faulting. The findings indicated that fiber-reinforced polymer (FRP) dowels performed better in terms of pavement smoothness compared to steel dowels.

The Minnesota Department of Transportation (MnDOT) undertook a significant NGCS project on I-35 through downtown Duluth. This involved diamond grinding existing transverse texture to create the NGCS texture. OBSI testing showed the NGCS surface to be almost 7 dBA quieter than the existing texture, making it the largest NGCS project to date.

Decelerating an aircraft to a stop on a runway becomes significantly more critical in adverse conditions like heavy rain, marginal visibility, and gusting crosswinds. The U.S. National Aeronautics and Space Administration (NASA) and the Federal Aviation Administration (FAA) conducted specialized tests confirming that hydroplaning occurs at substantially lower speeds than previously noted. Despite technological advances like runway grooving, anti-skid braking devices, and high-pressure tires, several major runway overrun accidents still occur annually due to unsuccessful braking.

The California Department of Public Works, Division of Highways, conducted a study on the effect of broom texture on motorcycle rideability on a section of U.S. Highway 50 near Sacramento. The findings indicated that the broom texture did not present a hazardous riding condition, although smaller bikes with semi-knobby tires were more sensitive to the texture. The research highlighted the importance of surface texture in ensuring safe and comfortable travel for motorcyclists.