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60 users without concerns of privacy, and the necessary infra- measurement. The performance measures included in the structure needed to support the data and framework is imple- Freight System Report Card are those that are possible given mented and maintained for the life of the measures. existing data sources. As noted in the Summary and in Chap- ter 7, Findings and Recommendations, further research into how to capture additional performance data--particularly Continued Research into Additional Data related to multimodal freight efficiencies--is important. Bal- Sources ancing the acquisition of such data with the cost and privacy A consistent theme throughout this research has been how of the private sector are among the most important of pos- data limitations constrain expansion of freight performance sible future research areas. Endnotes 10GAO. Motor Carrier Safety: A Statistical Approach Will Better Identify Com- mercial Carriers That Pose High Crash Risks Than Does the Current Federal 1 Donnelly, Rick (PB Consult, Inc.). A Framework for Development, prepared Approach (GAO-07-585) Report to Congressional Requesters, June 2007. for the TRB Committee on Freight Transportation, 2003, pp. 6, 7. 11GAO. Truck Safety: Motor Carriers Office Hampered by Limited Information 2 Casavant, Ken, and Eric Jessup. Development of a Washington State Freight on Causes of Crashes and Other Data Problems (GAO/RCED-99-182) Report Data System, prepared for the Washington State DOT Office of Freight Stra- to the Subcommittee on Transportation and Related Agencies, Committee tegy and Policy, 2007. on Appropriations, House of Representatives, June 1999. 3 Harrison, Rob, Mike Schofield, Lisa Loftus-Otway, Dan Middleton, and 12GAO. Highway Safety: Further Opportunities Exist to Improve Data on Jason West. Freight Performance Measures Guide, 2006. Crashes Involving Commercial Motor Vehicles (GAO-06-102) Report to Con 4 Mani, Akshay, and Jolanda Prozzi. State-of-the-Practice in Freight Data: gressional Committees, November 2005. A Review of Available Freight Data in the U.S., Center for Transportation 13 Transportation Research Circular E-C115: Challenges of Data Performance Research, The University of Texas at Austin, 2004. Measures: A Workshop. Transportation Research Board of the National 5, http://searchdatamanagement.techtarget. Academies, Washington, D.C., 2006. com/topics/0,295493,sid91_tax307458,00.html (accessed October 2, 2008). circulars/ec115.pdf. 6 Thomas, Gwen. "What's Right for Your Organization." June 18, 2008, http:// 14 Transportation Research Board Metadata Working Group Report, Transpor- tation Metadata: Role of Data and information Technology Section, July 5, whats-right-for-your-organization/P5 (accessed Feb. 15, 2010). 2005. 7 FHWA Office of Asset Management. Data Integration Primer, 2001. 15FHWA. Freight Information Real-Time System for Transport, http://ops.fhwa. 8 Data Integration Primer, 2001. (accessed May 25, 2010). 9 Spy Pond Partners, Comparative Performance Measurement: Pavement Smoothness, prepared for AASHTO, 2008.