Online CaliforniaFreight Data Repository

for Freight Modeling and Analysis

Andre Tok, Miyuan Zhao, Joseph Y.J. Chow, Stephen G. Ritchie, and Dimitri Arkhipov,

University of California at Irvine

2010 Innovations in Freight-Demand Modeling and Data Symposium

Issues with Freight Data Multiple freight data sources

Different user-interface designs and architecture Availability of data definitions

Data dictionaries not always explicitly provided Inconsistent data formats

Creates potential incompatibilities for modeling and analysis

Text-based data Inability to assess scope and relevance of datasets

Online California Freight Data Repository (Cal-Fred) Features

User-centered online tool Convenient access through web-based architecture

(http://moon.its.uci.edu/calfred/) Standardized interface, centralized location for obtaining

freight data from a variety of public sources Data definitions

Downloadable data dictionaries and lookups associated with each data source

Data formats Data tables associated with each data source can be

downloaded in a variety of formats (tab-delimited, csv, html) to accommodate user needs

Data evaluation and assessment Time-series and spatial analysis tools provide

convenient evaluation and visual assessment of data

Conceptual Data SchemaTime

ResolutionsZones

Facility Networks

Commodities ModesSocio-

economicLogistics

Annual

Quarterly

Monthly

Daily

Hourly

States

Gateways

Foreign Trade Regions

Logistics Nodes

California

FAF Regions

Air Districts

Caltrans Districts

Counties

Port Terminals

Airports

Truck/ Rail Facilities

Truck/ Pipeline Terminals

Highway Geography

Rail Geography

Waterway Geography

Intermodal Links

Production

Consumption

Transloaded

Flow

SCTG

STCC

Truck

Rail

Water

Air

Commercial Vehicles

Truck Rail Intermodal

Other

Vessel Types

Employment

NAICS Industries

Wages

Population

Monetary

Pay Rate

Nodal Facility Fees

Link Facility Fees

Time

Link Travel Times

Node Dwell Times

Emissions

Energy Consumption

Handling

Restrictions

Safety

Packaging Type

Xload Equipment Type

Accidents

Hazmat Incidents

List of Data SourcesIndex Name Originator Data Type

D1 Freight Analysis Framework (2002, 2007) U.S. Department of Transportation (FHWA)

Commodity Flow by OD and Commodity Type

D2 Navigation Data Center (2002-2007) U.S. Army Corps of Engineers Commodity Flow by Waterborne

D3 North American Transborder Freight Data (2002-2007) U.S. Census Bureau Exports to and Imports from Canada and

Mexico

D4 Rail Carload Waybill Sample (2006, 2007) U.S. Department of Transportation Commodity Flow by Rail; Intermodal Transport

D5 County Business Patterns (2002-2007) U.S. Census Bureau Transportation Employment; Number of Establishments

D6 Border Crossings Data (2002-2007) Bureau of Transportation Statistics Border Crossings

D7 National Emission Inventory (2002, 2005) U.S. Environmental Protection Agency Emissions by Source Type

D8 Port Wages and Tonnage Report (2002-2007) Pacific Maritime Association West Coast Port Employment Wages,

Tonnage by Quarter & by Month

D9 Rail Performance Measures Weekly Performance Reports (2008, 2009) The Association of American Railroads Terminal Dwell Time, Speeds, by Provider

(BNSF/UP)

D10 Major Airport Operating Statistics (2002-2004) RAND California Load and Unload by Airport

D11 Labor Market Library (2002-2007) California Employment Development Department Population

D12 Estimated Annual Average Emissions (2005) California Air Resource Board Energy Cost/Expense; Emissions

Inventory

D13 Caltrans Annual Average Daily Truck Traffic (2002-2007) Traffic Data Branch, Caltrans Truck Count

D14 California Motor Vehicle Stock Travel, and Fuel Forecast (2002-2007) Caltrans Truck Vehicle Miles Traveled (VMT);

Truck Vehicle Fuel Consumption (VFC)

Cal-Fred User Interface and Modules:A single integrated application

Data Source Query Interface

Data query interface

Data source description(updates with change in data source selection)

Data dictionaries associated with data source

2003 International Monetary Fund Data Quality Assessment Framework-based assessment summary (click to display)

Cal-FRED Time Series Analysis

Google Maps-based location selection interface

Tabular and chart results with display and data download options

Query interface with map display options

Map display options interface

Cal-FRED Spatial Analysis

Google Maps-based color-scaled results illustrates geographical distribution of data

Tabular and chart results display text results and percentage contribution with data download options

Query interface with map display options

Data source filter narrows down list of displayed sources

Cal-FRED External Data Sources

Data source descriptions are displayed as the mouse hovers over a data source

Filtered list of external data sources (click to access data source via external web page)

Toggle between public and private data source lists

FREDDY Search vs Google Search

FREDDY Search Results(uses Google custom search engine to search over 40 freight related websites) Google Search Results

Application Examples Freight network optimization: the Cal-GIFT model

Highway, railway, waterway networks, transfer facility locations Truck/rail/vessel emissions, energy consumption from EPA Ports/rail terminal volumes, good types transferred, handling delay Commodity flow OD’s (FAF2)

Freight data analysis: Commodity Flow Disaggregation FAF2 Socioeconomic data: County Business Patterns, Census Populations,

Quarterly Census of Employment and Wages

Metropolitan Planning Organization Goods Movement Studies Truck VMT/HPMS FAF2 VIUS

Land use model integration (Caltrans PECAS) Highway, railway, waterway networks, transfer facility locations FAF2 Socioeconomic data: County Business Patterns, Census Populations,

Quarterly Census of Employment and Wages

QUESTIONS & ANSWERS