Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies (2011) / Chapter Skim
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Appendix K - Existing and New HMCFS Data Analysis Examples
Appendix K - Existing and New HMCFS Data Analysis Examples
Pages 161-174
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From page 161... ...
Supported Objectives Increasing awareness about hazmat transport and minimum scenarios definition.
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Application Example A local entity is interested in information about transportation of all hazardous materials and Hazard Class 3 materials. First, they need to access the 2007 Commodity Flow Survey information.
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4. Apply the overall percentages of hazmat truck traffic from the bottom row of the 2002 VIUS data table to the estimated truck traffic levels, or apply percentages of hazardous materials by truck versus all commodities by truck from the 2007 CFS, for a crude estimate of numbers of hazmat trucks on applicable segments 5.
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According to the 2007 CFS, Hazard Class 3, Flammable or Combustible Liquids, corresponds to 4.2 percent of all truck ton-miles shipped for all commodities. Using these estimates and assuming that all trucks on the roadway section are driven the same distance through the jurisdiction, the local entity might expect to have K-4 Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies
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Application Example A local entity is interested in estimating the number of trucks per day transporting Hazard Class 3 materials over a particular Interstate highway segment. They have information that shows that the 2009 truck traffic on the Interstate segment was 500 tank trucks per day, 2,500 flatbed trucks per day, 3,000 refrigerated van trucks per day, and 3,500 standard van trucks per day (the LEPC only counted trucks by type, not configuration)
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Application Example A local entity is interested in estimating the number of trucks per day transporting Hazard Class 3 materials over a particular Interstate highway segment. They conduct a 24-hour placard count during a weekday on the Interstate segment.
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Application Example A local entity is interested in estimating the percentage of placarded trucks transporting Hazard Class 3 materials over a particular Interstate highway segment during the daytime. They Existing and New HMCFS Data Analysis Examples K-7
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K-8 Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies
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Application Example A local entity is interested in estimating the percentage of all trucks transporting Hazard Class 3 materials over a particular Interstate highway segment during the daytime. The entity collects the following information for a daytime, weekday 8-hour placard count on the Interstate segment: • 50 placards with UN/NA placard ID 1203 (Gasoline)
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Application Example A local entity is interested in estimating the percentage of all trucks transporting Hazard Class 3 materials over a particular Interstate highway segment during the daytime, as well as variations in traffic levels. The local entity collects information for truck type, configuration and UN/NA placards for a daytime, weekday 8-hour count on an Interstate segment.
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to 4:00 P.M. % Placarded Trucks with % All Trucks with Truck Type TruckConfiguration Class 3 Placard Other Placard Class 3 Placard Any Placard Straight 50% 50% 20% 40% Tractor-Trailer 57% 43% 30% 52.0% Tank Subtotal 56% 44% 28% 50% Straight 0% 100% 0.0% 0.3% Tractor-Trailer 24% 76% 0.4% 1.8% Box Van Subtotal 23% 77% 0.4% 1.5% Straight -- -- 0% 0% Tractor-Trailer 0% 100% 0.0% 0.1% Refrigerated Van Subtotal 0% 100% 0.0% 0.1% Straight 11% 89% 0.5% 4.5% Tractor-Trailer 0% 100% 0.0% 1.2% Flatbed Subtotal 7% 93% 0.1% 2.1% Straight 0% 100% 0.0% 0.5% Tractor-Trailer 0% 100% 0.0% 0.5% Other Subtotal 0% 100% 0.0% 0.5% Total 46.0% 54.0% 1.8% 4.0% Table K.2.
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An examination of shipping manifests can be used to confirm hazmat presence, help define priority sampling locations and frameworks, and provide information about the percentage of non-placarded shipments that are carrying hazmat. K-12 Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies
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The last time mutual aid agreements or emergency response service incident command procedures were reviewed for any department in the county was in 2003, and the county population has grown by 50 percent since then. Although the Center County LEPC is interested in hazmat transport throughout the county, they are particularly interested in a stretch of Interstate highway east of Sometown that has the industrial facility on one side and subdivisions on the other side, including a large elementary school.
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The community and school may also wish to review building air infiltration rates and shelterin-place, evacuation, and emergency notification systems to ensure that protocols and procedures reflect potential hazards. K-14 Guidebook for Conducting Local Hazardous Materials Commodity Flow Studies
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