Review of asphalt pavement evaluation methods and current applications in Norway

Evaluation methods and tools used to assess pavement conditions provide an invaluable service to infrastructure engineers, technicians, budget planners, and decision makers. These tools provide information relevant to the maintenance and rehabilitation of a nation's infrastructure. As the pavement network continues to grow and age, new methods of condition evaluation will need to be implemented to maintain conditions databases so that managers and decision makers may develop accurate ideas with regards to the state of the network. This paper introduces various concepts and technologies used today within the road evaluation sector, these include: sensor technologies, pavement condition surveys, imaging techniques, deflection testing, and ground penetrating radar (GPR). These technologies are then discussed within the Norwegian context and their applicability reviewed. Keywords: condition evaluation methods, sensor technologies, pavement condition survey, deflection testing, ground penetrating radar. Dangu bukles vertinimo metodai ir priemones yra neikainojami keliu inzinieriams, techniniam personalui, biudzeto planuotojams ir sprendimu priemejams. Juos taikant teikiama informacija salies infrastrukturos prieziurai ir atnaujinimui. Kadangi keliu tinklas ir toliau pleciasi bei seneja, butina diegti naujus dangu bukles vertinimo metodus ir palaikyti dangu bukles duomenu bazes, kad valdytojai ir sprendimu priemejai galetu priimti tinkamus sprendimus keliu tinklo buklei gerinti. Straipsnyje pristatomos siuolaikines technologijos ir priemones, naudojamos keliu vertinimo srityje, t. y. jutikliu technologija, dangu bukles tyrimai, vaizdu formavimo metodai, ilinkiu matavimai, georadaras. Aptartas siu technologiju taikymas Norvegijoje. Reiksminiai zodziai: bukles vertinimo metodai, jutikliu technologijos, dangu bukles tyrimas, ilinkiu matavimas, georadaras. Cela segas stavokla novertejuma izmantotas metodes un riki sniedz nenovertejamu pakalpojumu infrastrukturas inzenieriem, tehnikiem, budzeta planotajiem un lemuma pienemejiem. Ar siem rikiem ieguta informacija ir loti nozimiga nacionalas infrastrukturas uzturesanai un rehabilitacijai. Ta ka celu tikls turpina paplasinaties un novecot, tad, ar noluku uzturet cela segas datu bazes, nepieciesamas jaunas cela segas stavokla novertesanas metodes, kas vaditajiem un lemumu pienemejiem lautu adekvati novertet celu tikla stavokli. Dotais raksts iepazistina ar celu novertesanas joma dazadam sobrid izmantotajam tehnologijam u