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Anomalies
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Outliers, aberrations, fat tails, trouble at the mill and maybe something good once in awhile
Curated by
Ellie Kesselman Wells
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Scoop.it!
Every year the nations oil and natural gas pipelines suffer hundreds of ruptures and spills. We map major pipeline accidents from 1986 to the present.
Ellie Kesselman Wells's insight:
Pipeline technology at scale was developed 50+ years ago. Ruptures due to material weld equipment failure decreased since 1986, ranging from 16% to an all-time historical low of 8% in 2001. However, incidents due to material weld failures tripled the next year, and continued rising, to 30% in 2010 and 2011. Absolute counts of pipeline incidents per year have been stable since 1986. What's going on with these material weld equipment failures??? A few possibilities to consider are: 1. normal wear and tear, given the weld materials' expected lifetimes; 2. poor maintenance; 3. higher corrosiveness of the pipeline contents than expected or than in the past. 
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Based on current spending and revenue trends, the U.S. Department of Transportation estimates that the Highway Trust Fund will run out of money to maintain and repair surface roadways before the end of the fiscal year (in mid October 2014). Anticipation of a deficit scenario is already impacting transportation planning at the state level, including Arkansas and Georgia.