Not every card is pristine or mint. When flaws are inevitable, collectors are left to decide which imperfections matter most. Centering, corners, edges, and surface are the four areas grading ...

Permafrost degradation on the Qinghai-Tibet Plateau is accelerating under climate warming, causing roadbed settlement, waterlogging, thawing interlayers, and long-term instability in high-altitude ...

Potholes are one of the most common and frustrating problems on roads. Even after repairs, many potholes seem to reappear at the same locations, sometimes within a single rainy season. To the ...

Regardless of how much experience an equipment operator has, it is difficult to achieve uniform compaction over a sizable area without the help of technology. Without technology, equipment operators ...

Mansour Solaimanian receives funding from Pennsylvania Department of Transportation. In the past has received research funding from Federal Highway Administration and Wisconsin Department of ...

Road infrastructure is an essential component of any society, connecting people and facilitating the movement of goods and services. However, constructing a road requires much more than laying asphalt ...