Abstract
Researchers have developed various methods and tools for nondestructively testing urban trees for decay and stability. A general review of these methods includes simple visual inspection, acoustic measuring devices, microdrills, pull testing, ground penetrating radar, x-ray scanning, remote sensing, electrical resistivity tomography and infra-red thermography. Along with these testing methods have come support literature to interpret the data.
Highlights
Trees within an urban community provide significant ecological, economic and social benefits, making a city more livable and comfortable for its inhabitants [1]
Nondestructive testing (NDT) methods by locating and quantifying wood decay and defect are used to measure the physical condition of trees within the urban forest to promote public safety and property protection
Nondestructive testing methods used in the urban forest include visual examinations; acoustic methods of sounding, stress wave timers and multi-sensor tomography; microdrill resistance testing; ground penetrating radar; static and dynamic pull testing; computed tomography (CT) X-ray; aerial remote sensing including drones [2,3,4]; electrical resistivity tomography (ERT); and infra-red thermography (IRT)
Summary
Trees within an urban community provide significant ecological, economic and social benefits, making a city more livable and comfortable for its inhabitants [1]. Urban forest managers use biological and engineering principles to determine a tree’s structural soundness and estimate the probability of failure. Nondestructive testing (NDT) methods by locating and quantifying wood decay and defect are used to measure the physical condition of trees within the urban forest to promote public safety and property protection. These methods are of special value to the urban forest managers and arborists responsible for the general safety of city residents, roadway transportation and utility corridors. Nondestructive testing methods used in the urban forest include visual examinations; acoustic methods of sounding, stress wave timers and multi-sensor tomography; microdrill resistance testing; ground penetrating radar; static and dynamic pull testing; CT X-ray; aerial remote sensing including drones [2,3,4]; electrical resistivity tomography (ERT); and infra-red thermography (IRT)
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