Measuring step geometry using the Nose-to-Nose method: validity and repeatability.
Precise measurement of stairway geometry is important in order to establish whether a stairway meets design goals, standards and codes. The Traditional method of measuring risers and runs (goings) does not measure the stairs in the way that codes define risers and runs, and does not measure the stairs in the way users experience them. The Nose-to-Nose method does. This study was conducted to determine the validity and repeatability of this method. Two researchers used this method to study the risers and runs on two separate stairways, one carpeted and the other not. Results demonstrated a high degree of validity and repeatability.
Daniel A Johnson, Inc, 6221 Swayne Dr NE, Olympia, WA 98516, USA.
Daniel
D
Johnson
Gary
G
Sloan
D000058:Accidental Falls; D061827:Dimensional Measurement Accuracy; D005430:Floors and Floorcoverings; D006801:Humans; D055641:Mathematical Concepts; D015588:Observer Variation; D014894:Weights and Measures