Online Data Repository for Statewide Freight Planning and Analysis
Freight transportation has a multifaceted impact on the economy, and the importance of understanding freight demand is increasing. There is a significant need to access a wide array of data sources for freight modeling and analysis. However, current data sources are not always easily accessible even with the availability of the Internet. Among the reasons are differing user interfaces, unavailability of data type definition, data format incompatibility, and inability to assess the scope of data conveniently. The repository developed in this study, the California Freight Data Repository, is a user-centered online tool designed from a systems perspective with several objectives. First, it facilitates convenient access, standardized interface, and a centralized location for obtaining freight data. Data dictionaries and lookup tables are provided for each data source to allow users to understand the scope of the data source and to give a clear definition of terms found in the data. A quality assessment summary is also provided to inform users of the strengths and limitations associated with each data source. Second, the repository is equipped with several geographic information system–based visualization tools intended to allow users to perform preliminary evaluation of data to determine their suitability for specific modeling or analysis needs. Third, the repository is designed with a customized search engine to retrieve web resources specifically associated with freight modeling and analysis. This paper presents the metadata architecture used for identifying data sources, the assessment framework used to evaluate selected data sources, and the system and interface design of the California Freight Data Repository. Several use cases are presented to demonstrate the applicability of this resource.
- Record URL:
- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://www.trb.org/Main/Blurbs/166469.aspx
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Authors:
- Tok, Andre Y C
- Zhao, Miyuan
- Chow, Joseph Y J
- Ritchie, Stephen
- Arkhipov, Dmitri I
- Publication Date: 2011
Language
- English
Media Info
- Media Type: Print
- Features: Figures; Photos; References; Tables;
- Pagination: pp 121-129
- Monograph Title: Travel Survey Methods, Freight Data Systems, and Asset Management 2011
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: 2246
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Data quality; Data warehouses; Freight traffic; Freight transportation; Internet; Metadata; System architecture; System design; User interfaces (Computer science)
- Uncontrolled Terms: Freight data
- Geographic Terms: California
- Subject Areas: Data and Information Technology; Freight Transportation; Planning and Forecasting; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01337731
- Record Type: Publication
- ISBN: 9780309167666
- Report/Paper Numbers: 11-3718
- Files: TRIS, TRB, ATRI
- Created Date: Apr 25 2011 2:44PM