The most hazardous liquid products transported by pipelines are highly volatile liquids (HVL), such as liquefied petroleum gas and anhydrous ammonia. Since the Safety Board began investigating HVL pipeline accidents in 1970, it has issued a total of 19 recommendations to the Department of Transportation (DOT) urging adoption of improved safety requirements for these pipelines. In FY 1979 the Safety Board, concerned that needed improvements either have not been implemented or have not been implemented as rapidly as possible, established a safety objective for improved safeguards for HVL pipelines. The objective was twofold, designed to: (1) Demonstrate the need for improvements, and (2) obtain the commitment of DOT's Materials Transportation Bureau (MTB) to implement standards recommended by the Safety Board. As a result of the Safety Board's accident investigation and safety objective activities, MTB has proposed or adopted new HVL pipeline safety standards which will, when fully implemented, substantially reduce the probability of accidents and the risk of casualties and property losses. However, reduction of the remaining risks to the public safety will require further action by MTB to: (1) Expedite implementation of proposed safeguards; (2) establish safety requirements based upon the population which may be exposed to harm; and (3) establish minimum performance requirements for the prompt detection and rapid isolation of failed sections of HVL pipelines.
Safety Report on the Progress of Improvements in Pipeline Transportation of Highly Volatile Liquids
1979
24 pages
Report
No indication
English
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