Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies (2011) / Chapter Skim
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Appendix C - HMCFS Case Studies
Appendix C - HMCFS Case Studies
Pages 84-92
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From page 84... ...
Hazmat trucks were counted by consultant staff at 11 sites on major highways in the county, one of which was at a weigh station because high traffic volume inhibited clear view and reading of placards from the roadside. Data collection was conducted by one person, in two periods of 2-hour shifts over 2 days and in both traffic directions, except at the weigh station where two 8-hour shifts took place, one at the northbound and one at the southbound scale.
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From page 85... ...
The results are displayed in tables and bar graphs showing the total number of trucks and placarded trucks by site, the percentage of placarded trucks, and numbers and percentages of hazmat placards observed by class and UN/NA placard IDs. The Tulsa HMCFS is included in the HMCFS report, apparently in its entirety, to the point that trends are likely to be similar between the two.
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From page 86... ...
Pertinent information recorded included rail car or trailer body type and placard number. Data collectors were trained beforehand to use the Emergency Response Guidebook for identifying hazmat placards, rail car types, and truck body types, and to note the corresponding placard IDs on the data collection forms.
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From page 87... ...
The HMCFS report included several relevant appendices (i.e., the BTS 2002 CFS data for Vermont, typed data sheets, ERG figures showing hazmat placards, railcar and truck body types and codes, and an area map with rail and highway routes)
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From page 88... ...
. They included updating the study on a regular basis, comparing it to studies conducted by neighboring counties, expanding the number of data collection sites, including rail and pipeline modes, conducting in-depth vulnerability and risk assessment, enhancing emergency response, developing a database of fixed facilities, standardizing data collection methods, and expanding the number of industries surveyed.
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From page 89... ...
It consists of 703 square miles and 63 municipalities and is of semi-mountainous terrain. Major highway routes include C-6 Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies
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From page 90... ...
. Resources consisted of an HMEP grant and community volunteers, whose labor and other related expenses constituted the local match value.
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From page 91... ...
The project results were validated by comparison with hazardous material and truck traffic observations from an adjacent LEPC's HMCFS, and with TxDOT truck traffic survey estimates. Because of different sampling locations and procedures, information that could be compared directly with the LEPC's 1996 study and the TxDOT data were limited (the 1996 study counted only placarded trucks, not all trucks, and at different locations; the TxDOT study classified vehicles by weight and number of axles, not truck configuration C-8 Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies
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From page 92... ...
Truck incidents locations resulting in hazmat releases were identified and mapped based on information contained in a Texas Commission on Environmental Quality incident database and PHMSA's HMIS database. Data for transport of hazardous materials by rail were provided by the Class I rail carriers operating over UP trackage in the county and rail summarized by hazmat class and division for major trackage segments, by annual number of carloads.
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