1	Weather Delay Costs to Trucking Road Weather Management Stakeholder Meeting September 9, 2011
2	"Commercial vehicles main mode of..." Commercial vehicles main mode of freight transportation $500 billion freight sector 70% of total value and 60% of weight moves by truck Estimates that adverse weather is responsible for 12% to 25% of all delay Trucking delays due to weather = $3.1 billion/yr for the 50 largest cities Lost commerce due to snow closures = $10 billion/day Other economic impacts of adverse weather More than $2 billion/yr is spent on snow and ice control by State DOTs Weather accounts for 25% of non-recurring congestion
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4	"Quantify the Impact of Adverse..." Quantify the Impact of Adverse Weather on U.S. Roadway Freight Operations Key Questions What is the overall level of delay in the system? What portion of delay is incurred by CVs? What portion of delay is caused by adverse weather? What is the value of commercial shipments? Various data sources available Important to select the realistic level of detail
5	"Weather Delay Costs to Trucking" Weather Delay Costs to Trucking
6	"Review previous related work" Review previous related work Analytical techniques are focus Congestion delays on a national, or broad geographic basis Impacts of weather on roadway delay Impact of delay on freight movements and costs Build on previous lit reviews Weather Data Mining and Gap Analysis Strategic Highway Research Program 2 L08 Reliability New sources – DHS, others
7	"Congestion" Congestion Urban Mobility/Congestion Report Highway Performance Monitoring System (HPMS) and Highway Economic Requirements System (HERS) Statewide Traffic Management Centers State DOT “dashboard” summaries Private sources (Inrix, NavTeq)
8	"Weather" Weather NCDC MADIS Clarus Private Summaries such as Places Rated Almanac
9	"Weather" Weather Event Classification Tradeoff between level of detail and ability to process Classification scheme
10	"Freight" Freight FTR Model Database Total truck tons, loads and ton-miles by 3-digit STCC code and length of haul segment Productivity model translates freight volumes into truck work estimates Models of truck cost data Models of national logistics costs for supply chain implications
11	"Develop weather and congestion parameters" Develop weather and congestion parameters Identify key supply chain locations with weather impact Estimate delays for base year using classification scheme - Weather event, facility type and freight cost impact Convert weather related delay to delay/truckload Use FTR model to estimate $$/truckload Estimate truckloads impacted by weather events Calculate and annualize costs Develop risk profile Develop future year forecasts
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