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Coordinating, Developing, and Delivering Highway Transportation Innovations

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Publication Number:  FHWA-HRT-15-072     Date:  December 2016
Publication Number: FHWA-HRT-15-072
Date: December 2016


State of The Practice on Data Access, Sharing, and Integration

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The effective analysis of transportation operations strategies for planning and investment decisions requires an accurate and complete understanding of transportation system performance obtained by integrating multiple sources of transportation data from multiple stakeholders. This report examines the state of the practice in data sharing and integration, specifically (1) current data sharing and integration practices among State and local agencies, (2) example data environments, (3) technical integration formats, and (4) business rules for integration and sharing.

The review was conducted at the outset of a Federal Highway Administration project to develop a prototype framework for sharing planning and operations data between State and local transportation agencies from multiple sources within a region. The results of the review were used to inform the development of the framework. Transportation operators, planners, and data professionals can use this report to enhance their data sharing and integration efforts by building on the experiences and effective practices of other agencies that are documented in this report.

Brian P. Cronin
Director, Office of Operations
Research and Development


This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document.

The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers’ names appear in this report only because they are considered essential to the objective of the document.

Quality Assurance Statement

The Federal Highway Administration (FHWA) provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement.


Technical Report Documentation Page

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1. Report No.
2. Government Accession No.

3. Recipient’s Catalog No.

4. Title and Subtitle
State of the Practice on Data Access, Sharing, and Integration
5. Report Date
December 2016
6. Performing Organization Code:

7. Author(s)
Anita Vandervalk, Krista Jeanotte, Dena Snyder, and Jocelyn Bauer
8. Performing Organization Report No.
9. Performing Organization Name and Address
6300 Georgetown Pike
McLean, VA 22101-2296
Cambridge Systematics, Inc.
100 Cambridge Park Drive, Suite 400
Cambridge, MA 02140
10. Work Unit No.

11. Contract or Grant No.
12. Sponsoring Agency Name and Address
U.S. Department of Transportation
Federal Highway Administration
6300 Georgetown Pike
McLean, VA 22101-2296
13. Type of Report and Period Covered

14. Sponsoring Agency Code

15. Supplementary Notes
The Federal Highway Administration Government Task Managers were Dr. Gene McHale (202-493-3275), Dr.Govindarajan Vadakpat (202-493-3283), and Dr. John Halkias (202-366-2183).
16. Abstract
The purpose of this state-of-the-practice review was to lay both technical and institutional foundation for all aspects of the development of the Virtual Data Access Framework. The review focused on current data sharing and integration practices among State and local agencies, example data environments, technical integration formats, and business rules for integration and sharing. State, local, and regional transportation operators, planners, and data professionals can use this report to enhance their data sharing and integration efforts by building on the experiences and effective practices of other agencies documented in this report.
17. Key Words
Data environments, Technical integration formats, Business rules, Data sharing, Data management, Data sharing agreements
18. Distribution Statement
No restrictions. This document is available through the National Technical Information Service,
Springfield, VA 22161.
19. Security Classif. (of this report)
20. Security Classif. (of this page)
21. No. of Pages
22. Price
Form DOT F 1700.7 (8-72) Reproduction of completed page authorized


SI* (Modern Metric) Conversion Factors









Figure 1. Table. DRCOG RCTO goals, objectives, initiatives, and performance measures
Figure 2. Screenshot. CDOT CoTrip Web site
Figure 3. Screenshot. Your CDOT Dollar Web page
Figure 4. Diagram. Recommended CDOT performance measures data system configuration
Figure 5. Screenshot. CDOT OTIS
Figure 6. Screenshot. CDOT CoTrip XML data feeds
Figure 7. Screenshot. FAST PMMS
Figure 8. Diagram. Data architecture for PSRC’s geospatial database
Figure 9. Screenshot. SPC Congestion Management Corridor Web site
Figure 10. Diagram. ICMS context diagram
Figure 11. Screenshot. SF Bay Area 511 Web site
Figure 12. Screenshot. 511 SF Bay available data feeds
Figure 13. Diagram. TravInfo open messaging service architecture and link status information
Figure 14. Diagram. Data feeds to RITIS, which standardizes the data and presents them to various user groups
Figure 15. Diagram. Some of the tools available through RITIS for real-time and historic data visualization, analysis, and sharing
Figure 16. Diagram. RITIS data architecture
Figure 17. Screenshot. RITIS demonstration snapshot of an incident timeline
Figure 18. Screenshot. PeMS welcome screen
Figure 19. Screenshot. PeMS main screen
Figure 20. Screenshot. PeMS corridor module Alameda I-80 daily animation
Figure 21. Screenshot. PeMS departure time series on I-15 north southbound
Figure 22. Screenshot. PeMS lane requirement chart modeling on I-110 north in district 7
Figure 23. Screenshot. PeMS data clearinghouse
Figure 24. Screenshot. PORTAL snapshot
Figure 25. Diagram. TDAD architecture
Figure 26. Screenshot. Clarus user interface
Figure 27. Screenshot. Clarus data on RITIS regional map
Figure 28. Screenshot. Graphic interpretation of weather data in RITIS
Figure 29. Screenshot. UPlan user interface
Figure 30. Diagram. High-level design of ITSDCAP
Figure 31. Screenshot. Interface for performance measure estimation
Figure 32. Diagram. Actively managed VDA Framework, which involves several processes to make data fully usable


Table 1. Roles and responsibilities for DRCOG’s RCTO data warehouse and performance reporting initiative
Table 2. ICMS interfacing systems and owner agencies
Table 3. TDAD data elements
Table 4. TDAD data fusion techniques
Table 5. Types of data consumers and applications
Table 6. Data quality targets
Table 7. ISO 19115 core metadata elements
Table 8. MnDOT metadata element schedule
Table 9. Example of matching temporal and spatial resolutions of data to applications


Caltrans California Department of Transportation  
CATT Center for Advanced Transportation Technology  
CCTV closed-circuit television  
CDOT Colorado Department of Transportation  
CHP California Highway Patrol  
CMP congestion management process  
CSDGM Content Standard for Digital Geospatial Metadata  
CSMP Corridor System Management Plan  
DCM data capture and management  
DMA dynamic mobility applications  
DMS dynamic message sign  
DOT department of transportation  
DRCOG Denver Regional Council of Governments  
DRS Data Retrieval System  
ESS environmental sensor station  
FAST Freeway and Arterial System of Transportation  
FGDC Federal Geographic Data Committee  
FDOT Florida Department of Transportation  
FEA Federal Enterprise Architecture  
FHWA Federal Highway Administration  
GIS geographic information system  
GPS Global Positioning System  
HPMS Highway Performance Monitoring System  
HTML Hypertext Markup Language  
ICM integrated corridor management  
ICMS Integrated Corridor Management System  
IDG Interagency Data Group  
IMTMS Intermodal Transportation Management System  
IP Internet Protocol  
ISO International Organization for Standardization  
IT information technology  
ITS intelligent transportation system  
ITSDCAP ITS Data Capture and Performance Management Tool  
lat/lon latitude/longitude  
LRS linear referencing system  
M&O management and operations  
MIT Massachusetts Institute of Technology  
MnDOT Minnesota Department of Transportation  
MOA Memorandum of Agreement  
MPO metropolitan planning organization  
MTC San Francisco Bay Area Metropolitan Transportation Commission  
MTP metropolitan transportation plan  
NCHRP National Cooperative Highway Research Program  
NDOT Nevada Department of Transportation  
NeXTA Network Explorer for Traffic Analysis  
NIEM National Information Exchange Model  
NOAA National Oceanic and Atmospheric Administration  
NSI National SAR Initiative  
ODE operational data environment  
ODOT Oregon Department of Transportation  
OTIS Online Transportation Information System  
PDF Portable Document Format  
PeMS Performance Measurement System (Caltrans)  
PennDOT Pennsylvania Department of Transportation  
PMAT Performance Measure and Analysis Tool  
PMMS Performance Monitoring & Measurement System  
PSRC Puget Sound Regional Council  
PSU Portland State University  
RCTO Regional Concept of Transportation Operations  
RDE Research Data Exchange  
RITIS Regional Integrated Transportation Information System  
RTC Regional Transportation Commission of Southern Nevada  
RTP regional transportation plan  
RWIS Road Weather Information System  
SANDAG San Diego Association of Governments  
SAR Suspicious Activity Reporting  
SPC Southwestern Pennsylvania Commission  
STB Surface Transportation Board  
TASAS Traffic Accident Surveillance and Analysis System  
TDAD Traffic Data Acquisition and Distribution  
TIP transportation improvement program  
TMC traffic message channel  
TOM Typed Object Model  
UDOT Utah Department of Transportation  
UN United Nations  
USDOT United States Department of Transportation  
VDA Virtual Data Access  
VDOT Virginia Department of Transportation  
VHT vehicle hours traveled  
VMT vehicle miles traveled  
WCO World Customs Organization  
WSDOT Washington State Department of Transportation  
XML eXtensible Markup Language  



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