|Natural gas distribution||110||154||153||149||158|
|Natural gas transmission||89||80||132||141||129|
Notes: Accident-related excludes human errors, package failures, and unreported cases. Water data are for incidents involving packaged materials only and do not include incidents where the vessel is the container (e.g., a barge or oil tanker). Nonpipeline reporting requirements changed in 2002. Pipeline data contain all incidents reported to PHMSA based on the reporting criteria in effect at the time of the incidents.
Natural gas transmission includes gathering system.
The 2007 data are revised for total highway incidents, accident-related incidents, and fatalities; for rail accident-related incidents; for total air incidents; and total liquid incidents.
The 2008 highway data and natural gas distribution data are revised, as are incidents for rail, air, and hazardous liquid categories. Hazardous liquid incident figures reflect all incidents, which differ from previous editions of Pocket Guide reporting significant incidents only.
Sources: Highway, Rail, Air and WaterUSDOT, Pipeline and Hazardous Materials Safety Administration (PHMSA), Hazardous Materials Information System Database, available at http://www.phmsa.dot.gov/hazmat/library/data-stats as of November 2010 as reported in USDOT, RITA, BTS, National Transportation Statistics, table 2-6, available at http://www.bts.gov/publications/national_transportation_statistics/ as of January 2011. PipelineUSDOT, PHMSA, Office of Pipeline Safety, Accident/Incident and Mileage Summary Stats, available at http://ops.dot.gov/stats/stats.htm as of December 2010.