Petra Offrell

发表

Utvärdering av Clegg Impact Soil Tester som alternativ till bärighetsmätning med statisk plattbelastning

Petra Offrell, Richard Nilsson, 1996 .

Methods for measurements and analyses of cracks in flexible pavements

Petra Offrell, 2003 .

Repeatability in crack data collection on flexible pavements : Comparison between surveys using video cameras, laser cameras, and a simplified manual survey

Petra Offrell, Leif Sjögren, Rolf Magnusson, 2005 .

In Situ Photographic Survey of Crack Propagation in Flexible Pavements

Petra Offrell, Rolf Magnusson, 2004 .

A new mobile system for safe performance control of the road markings

Petra Offrell, Peter Ekdahl, 2011 .

Computerised Tomography as a Tool for Crack Analysis in Asphalt Layers

Petra Offrell, Rolf Magnusson, 2002 .

AUTOMATIC CRACK MEASUREMENT IN SWEDEN

Leif Sjögren, Petra Offrell, L. Sjögren, 2000 .