The safety measurement problem revisited

A response from Kjellén to Hopkins’ 2009 article about indicators (link in comments). [See week’s compendium dedicated to Hopkins & Hale] Extracts: ·        “LTI-rate gives the same weight to injuries with dramatically different consequences; that the measure is easily manipulated; and that natural statistical fluctuations make it useless for feedback control of other than the largest… Continue reading The safety measurement problem revisited

Indicating what Indicators Indicate… a follow-on post about safety indicators

Another post spruiking yesterday’s compendium of indicator research – link here. The attached images highlight some further considerations around indicators – no methodology or logics here, just scattered extracts. ·        Image 1 highlights that simple lead / lag denominations may not adequately cover the full performance spectrum of indicators. And there’s more detailed analyses than this… Continue reading Indicating what Indicators Indicate… a follow-on post about safety indicators