Reliable engineering productivity measurement is a critical element of predictable project performance and continuous improvement. Despite the fact that engineering costs have risen to levels approaching 20 percent of total ...

A series of resonant column and torsional shear (RCTS) and large scale resonant column (LSRC) tests were performed to investigate the dynamic properties (shear modulus and material damping ratio) of municipal solid waste ...

When estimating the impacts of air pollutant control measures on future air quality, it is typically presumed that land covers remain constant. However, changes in land cover can have an impact on air pollutant ...

One of the key elements for managing transportation infrastructure is to accurately capture and predict the performance of the facility through well established deterioration models. A sound deterioration model should ...

Widening of existing highways often results in new mechanically stabilized earth (MSE) walls being placed in front of existing stable walls. The design of these walls is unique because limited right-of-way often forces the ...

Recent research reports have suggested that one of the potential causes of low compressive strengths in air-entrained concrete is the clustering of air voids around the aggregates. The phenomenon of clustering of air voids ...

This research project, funded by the Federal Highway Administration (FHWA Project DTFH61-02-C-0097), focuses mainly on alkali-silica reaction (ASR) studies and ways to mitigate the effects of alkali-silica reaction in fresh ...

Trapezoidal box girders are frequently used in curved bridge interchanges due to advantages in aesthetics, maintenance, and structural performance compared to comparable I-shaped girders. The smooth shape provides an ...

For organizations such as state departments of transportation, other public agencies, or private companies, adopting a new approach to procure services for delivery of construction projects requires significant organizational ...

Researchers have examined the benefits of outsourcing engineering design services from various perspectives. However, the process by which complex engineering design work is outsourced across international boundaries has ...