Sökning: "LTPP"

Hittade 2 avhandlingar innehållade ordet LTPP.

  1. 1. Modeling pavement performance based on data from the Swedish LTPP database predicting cracking and rutting

    Detta är en avhandling från Stockholm : Kungliga tekniska högskolan. Institutionen för transportvetenskap

    Författare :Markus Svensson; KTH.; Statens väg- och transportforskningsinstitut.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; performance predictions; LTPP; rut; crack; statistical modeling; 32 Road: Pavement design; 32 Road: Pavement design; Cracking; Rutting wheel ; Prediction; Calculation; Mathematical model; Flexible pavement; Performance; Sprickbildning; Spårbildning; Förutsägelser; Beräkning; Matematiska modeller; Flexibla överbyggnader; Prestanda;

    Sammanfattning : The roads in our society are in a state of constant degradation. The reasons for this are many, and therefore constructed to have a certain lifetime before being reconstructed. To minimize the cost of maintaining the important transport road network high quality prediction models are needed. LÄS MER

  2. 2. Methods for measurements and analyses of cracks in flexible pavements

    Detta är en avhandling från Stockholm : Byggvetenskap

    Författare :Petra Offrell; KTH.; [2003]
    Nyckelord :Cracking; Crack propagation; Data collection methods; Image analysis; Image processing; LTPP; Automatic identification systems; Flexible pavement; PAVUE; Laser RST; measures; characterisation; x-ray computerised tomography; asphalt; 3D analysis; top-;

    Sammanfattning : When cracking has propagated through the entire asphaltbound layers, water may ingress into the unbound layers andaccelerate the deterioration of the road structure. Knowledgeon where cracks initiate and how they propagate vertically istherefore of great practical importance. LÄS MER