Drift index | Article about drift index by The Free Dictionary
1. The ratio of the lateral deflection of a building to its height.
2. The ratio of the lateral deflection of a story of a building to the height per story.
References in periodicals archive
Overall, different illusion strength measures within the same illusion were significantly correlated, except for the rubber hand illusion where the proprioceptive drift index
did not correlate with either onset latency or subjective rating.
Structural engineers in Miami generally use a drift index
of 1/400 for tall buildings.