Module 4 - Transportation Research Board

Transcript Module 4 - Transportation Research Board

TOOLKIT FOR HAZARDOUS MATERIALS TRANSPORTATION EDUCATION

This work is sponsored by the U. S. Department of Transportation Pipeline and Hazardous Materials Safety Administration (PHMSA). It was conducted through the Hazardous Materials Cooperative Research Program (HMCRP), which is administered by the Transportation Research Board of the National Academies.

Prepared by 3 Sigma Consultants, LLC 909 Edenbridge Way, Nashville, TN 37215

Module 4: Hazmat Mode and Route Selection

Learning Outcomes

At the end of this module students will be able to: 1. Describe the operational considerations associated with selecting preferred modes and routes 2. Summarize relevant hazmat routing regulations 3. Recognize the tradeoffs that may exist in attempting to satisfy efficiency, safety, security and environmental criteria when making mode and route decisions 3

Topics

• • • • • • • Factors affecting mode choice Route selection factors Highway hazmat routing regulations Railroad hazmat routing practices Differences in highway and rail routing of hazmat Different approaches in applying routing criteria Community activism 4

Factors Affecting Hazmat Mode Choice

• • • • • • • • • • Travel time and service reliability Total logistics costs Safety and security Shipment size and weight Hazardous materials properties and composition Container characteristics Availability of infrastructure access/egress Equipment availability Local restrictions (e.g., bridges, tunnels, highway weights) Intermodal considerations 5

Route Selection Factors

• • • Efficiency – Trip length – Travel time – Availability of diversion route – Access to en route storage and repair facilities Safety & Security – Condition of infrastructure – Height, width, weight and traffic conflict considerations – – – Accident likelihood Population exposure Number of transfers – – Proximity to critical infrastructure and iconic targets Emergency response capability – Safe stopping places Environmental – Wildlife and vegetation exposure – Soil composition – Proximity to surface and ground water 6

Sample Critical Infrastructure and Iconic Targets

• • • • • • • • • • • • • • Bridges Tunnels Dams Grade crossings Government offices Military bases Sports facilities Major banks Chemical plants Utilities Religious shrines National landmarks Science laboratories Nuclear reactor sites 7

Highway Hazmat Routing Regulations (49 CFR Part 397)

• Radioactive Materials (RAM) and Highway Route Control Quantities (HRCQ) – Base rule – Follow State-designated route or Interstate system highway to reduce time in transit – Route analysis/designation responsibility – State/tribal/local governments – Coordination – continuity, jurisdictional, public process • Highway Non-RAM Hazmat (NRHM) – Base rule – Follow State-designated route or simply “operate over routes which do not go through heavily populated areas, places where crowds assembled, tunnels or alleys”.

– Route analysis/designation responsibility – State/tribal/local governments – Coordination – continuity, jurisdictional, public process 8 Source: Battelle Memorial Institute

Highway Routing Factors (49 CFR Part 397)

• • • • • • • • • • • • • NRHM Population density Type of highway Types and quantities of HM Emergency response capabilities Results of consultation with affected persons Exposure and other risk factors Terrain considerations Continuity of routes Alternative routes Effects on commerce Delays in transportation Climate Congestion and accident history • • Radioactive Materials Placarded Non-HRCQ RAM – Minimize radiological risk: • Accident rates • Transit time • Population density and activities • Time of day, day of week HRCQ RAM – Preferred route • State-designated or Interstate system highway • Reduce time in transit – Route deviations • • Pickup and deliveries Emergencies – Circuity rule Source: Battelle Memorial Institute 9

Railroad Practices Related to Hazmat Routing

• • Utilize AAR’s Recommended Railroad Operating Practices for Transportation of Hazardous Materials Provisions include: • Key Trains • Key Routes • Yard Operating Practices Source: Association of American Railroads, Battelle Memorial Institute 10

Key Trains

• • Defined as: • One tankcar load of ppoison or toxic inhalation hazard (PIH or TIH), anhydrous ammonia (AA) or ammonia solutions • 20 carloads or intermodal portable tanks of a combination of PIH, TIH, AA, ammonia solutions, flammable gas, Class 1.1 or 1.2 explosives, and environmentally sensitive chemicals • One or more carloads of spent nuclear fuel (SNF) or high level radioactive waste (HLRW) Restrictions: • Maximum speed of 50 MPH • Unless siding is rated as Class 2 or higher, key train holds main track • Car must be equipped with roller bearings • If visual inspection cannot confirm a defect bearing reported by a wayside detector, train will not exceed 30 MPH until passing next detector or inspection • If second wayside detector confirms defect, car must be pulled off of train 11 Source: Association of American Railroads, Battelle Memorial Institute

Key Routes

• • Any track carrying a combination of 10,000 carloads or intermodal portable tank loads of hazmat, or a combination of 4,000 loads of PIH/TIH, AA, flammable gas, Class 1.1 or 1.2 explosives, environmentally sensitive chemicals, SNF or HLRW in one year Requirements: – Wayside bearing detectors or equivalent technology no more than 40 miles apart – Main line track inspected by rail defect detection and track geometry cars or equivalent no less than 2 times/year; sidings no less than once per year – Periodic inspections of main track and sidings for cracks or breaks in joint bars 12 Source: Association of American Railroads, Battelle Memorial Institute

Yard Operating Practices

• • • Coupling speeds of loaded tank cars not to exceed 4 MPH Loaded PIH/TIH, AA or flammable gas cars cut off in motion in no more than 2-car cuts Cars cut off in motion coupled to loaded PIH, TIH, AA or flammable gas cars in no more than 2-car cuts Source: Association of American Railroads, Battelle Memorial Institute 13

Rail Hazmat Routing Regulations (HM-232)*

1. Applicability

Explosives 1.1, 1.2, 1.3 greater than 5,000 lbs Bulk quantity of PIH/TIH materials HRCQ radioactive materials

2. Route Analysis

Use specified routing factors to analyze safety and security risks for current routes

3. Alternative Route Analysis

Identify at least one “commercially practicable” alternative route and analyze safety and security risks

4. Route Selection

Select route posing the “least overall safety and security risk”; annual review required Institute measures to address vulnerabilities and risk identified Restrict distribution and access to data and routing analyses as sensitive security information (SSI) *49 CFR Part 172 contains this requirement 14

Rail Hazmat Routing Regulations (HM-232)

5. Completion of Route Analysis

Comprehensive, system-wide review of operations that could impact safety and security analyses every five years

6. Limitations on Actions by States a.

States, political subdivisions and tribes may not designate, limit or prohibit use of any rail line unless obtain waiver of preemption

7. Storage and Delays in Transit

Minimize time in transit; procedures for notifications; restrict access; etc.

8. Compliance and Enforcement

Not required to submit analyses or route decisions, but must have available for inspection 15

Rail Route Analysis Factors

• • • • • • • • • • • • • • Volume of hazmat Rail traffic density Trip length Railroad facilities Track type and class Track grade and curvature Signals and train control systems Wayside detectors Number and types of grade crossings Single vs. double track Frequency and locations of track turnouts Proximity to iconic targets Environmentally sensitive areas Population density • • • • • • • • • • • • • Venues along route Emergency response capability along route Areas of high consequence Passenger traffic Speed of train operations Proximity to en route storage or repair facilities Known threats (from TSA) Measures in place to address safety and security risks Availability of alternative routes Past incidents Overall time in transit Training and skill level of crews Impact on rail network traffic and operations 16 Source: Battelle Memorial Institute

Differences in Highway and Rail Routing of Hazmat

• • • • • • • Private vs. public right-of-way Fewer routing alternatives between any given origin destination pair for rail Larger quantities per container by rail Train consists vs. individual trucks Carrier interchanges by rail Population proximity to right-of-way along route Avoiding urban areas/center cities more difficult by rail 17 Source: Battelle Memorial Institute

Different Approaches In Applying Routing Criteria

• • • Require a route to pass across a segment that presents a low risk.

Require a route to avoid a segment that presents a high risk (i.e., hot spot).

Allow a route to use a high-risk segment, but impose a penalty (i.e., added cost) to any candidate route that would include that segment.

Critical Infrastructure & Iconic Target Hotspots and Hazmat Restricted Segments on the Highway Network in the Southeast U.S.

Iconic target Critical infrastructure Hazmat restriction 19

Colorado Truck Routes for Hazardous and Nuclear Shipments

Community Activism

• • • • Communities located along major hazardous materials transport routes have long feared the possibility of a hazardous materials release.

There have been historic occurrences of such events with severe consequences (e.g., Graniteville, SC).

Organized opposition has often formed to dissuade carriers from moving particularly dangerous hazardous cargo through a community (NIMBY – not in my backyard).

Hazmat shippers and carriers are actively working with these communities to improve hazmat transport safety and security, through such initiatives as: – TRANSCAER (Transportation Community Awareness and Emergency Response) – Participation in State Emergency Response Commissions (SERCs) and Local Emergency Planning Committees (LEPCs) – Hosting Capability Assessment Programs (CAPs) 21

Key Takeaways

• • • Hazardous materials shippers select preferred modes based on the characteristics of the cargo and the ability of the mode to satisfy the desired transport requirements.

Hazmat route selection is heavily regulated for the truck and rail industry, in terms of designated routes and requiring route risk assessments that consider a variety of economic, safety, security and environmental factors.

Tradeoffs exist among routing options in terms of their ability to satisfy various criteria, leading shippers, carriers and regulators to identify preferred routes based on criteria importance. 22

Student Exercise

The table below presents the results of an analysis that was performed on six hazardous materials highway routing options. 1) Based on the information provided, which route would you select as the preferred option? Explain your method and show how it was applied in determining the preferred route.

2) Report back on your methodology during the next session for comparison with others to identify the most desirable method(s).

Route Option

Trip Length (miles)

10.7

Population Density (per sq. mile)

16,200

Proximity to Iconic Targets

High

Proximity to Enviro.

Sensitive Areas

Low

Accident Likelihood

Low

Emergency Response Capability

Excellent 2 3 4 5 6 33.2

47.0

19.5

24.4

38.2

6,600 3,700 15,900 6,600 3,600 High Low Medium Medium Low Medium Low Medium High Low Low Medium High Medium Low Good Fair Excellent Good Poor 23

Resources for Support and Additional Learning

Code of Federal Regulations, Title 49: Transportation, Part 397 Transportation of Hazardous Materials; Driving and Parking Rules, Subpart C - Routing of Non-Radioactive Hazardous Materials and Subpart D Routing of Class 7 (Radioactive) Materials Hazardous Materials: Enhancing Rail Transportation Safety and Security for Hazardous Materials Shipments, Federal Register, November 26, 2008 http://www.fra.dot.gov/downloads/counsel/EnhancingRailTransportation SafetyAndSacurityForHazardousMaterialsShipments.pdf

Association of American Railroads, Recommended Railroad Operating Practices For Transportation of Hazardous Materials http://boe.aar.com/boe/pdf/CPC-1220_OT-55-L.pdf

American Waterway Operators, Facts About the American Tugboat, Towboat and Barge Industry, http://www.americanwaterways.com/industry_stats/facts_about_ind/fac tsabout.pdf