ISO 9920 (1992) provides information concerning the thermal properties of clothing. Higher activity levels have higher values. 1 Met is defined as the heat produced by a sedentary person and is given the value of 58 Watts produced for every square metre of the body surface area (i.e.1.0 Met = 58 Wm − 2. ISO 8996 (1990) provides methods for the estimation of heat production by a person for different activities. ISO 7726 (1985) provides information concerning specification of instruments for the measurement of the environmental factors. An important point is that any and all of the six factors can influence thermal comfort and that it is the integrated influence of all of the six factors that determines thermal comfort response.
the four environmental factors) and the clothing insulation and heat produced by the activity of a person (i.e. These are air temperature, radiant temperature, humidity, air velocity (i.e. It is generally agreed that any specification of thermal comfort conditions must consider the six basic parameters (variables). Parsons, in Materials for Energy Efficiency and Thermal Comfort in Buildings, 2010 5.5.1 The six basic ‘parameters’ Internal horizontal crack, hollow sound, fracture planes/open spaces, corrosion change Moisture in cracks, fracture planes/ open spaces, surface depression, depression with parallel fracture, corrosion change, chloride content through the depth Ground-penetrating radar (GPR) ( Daniels, 2004) Moisture in cracks, internal horizontal crack, surface depression, depression with parallel fractureįracture planes/open spaces, corrosion change, chloride content through the depth Missing seal, cracks and spalls within 2 feet, surface depression Missing seal, cracks, and spalls within 2 feet, surface depression, surface roughness, vertical and transverse movement of bridge Missing seal, spalls and surface cracks, surface depression, surface roughness Missing seal, cracks, and spalls within 2 feet, chemical leaching, surface depressionĮlectro-optical (EO) airborne and satellite imagery ( Vaghefi et al., 2012) Spectral analysis ( Vaghefi et al., 2012) Vertical and transverse movement of bridge, vibration Missing seal, cracks, and spalls within 2 feet, surface depression, surface roughness, vibrationĭigital image correlation (DIC) ( Vaghefi et al., 2012) Optical interferometry ( Vaghefi et al., 2012) Missing seal, cracks, and spalls within 2 feet, surface depression, surface roughness Streetview-style photography ( Vaghefi et al., 2012) Missing seal, cracks, and spalls within 2 feet, surface depression, surface roughness, vertical movement of bridge 3D Photogrammetry ( Vaghefi et al., 2012)