U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Skip to content

Policy and Governmental Affairs
Office of Highway Policy Information

FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Office of Highway Policy Information

Policy Information – National Highway Data Workshop and Conference

National Highway Data Workshop and Conference

The biennial national Highway Data Workshop and Conference series

What is HiDaC?

HiDaC is a conference series focusing on presentations and discussions of highway system inventory and extent, highway system designations, and highway system performance. The first HiDaC was held in Saratoga Springs, New York, in 2005 followed by Nashville, Tennessee, in 2007 Oakland, California, in 2009, and Buffalo, New York, in 2011.

The next HiDaC will be held in March of 2014 in Saratoga Springs, New York.

It will be held in conjunction with the New York State DOT Highway Data Workshop, a series of training and coordination sessions held annually by the NYSDOT Highway Data Services Bureau. Both events will be held at the Gideon Putnam Hotel in the Saratoga Spa State Park during the week of March 10-14. An agenda and more details will be forthcoming.

Please contact Michael Fay, Michael.Fay@dot.ny.gov if interested or want more information.

What is the Purpose of HiDaC?

The intent of HiDaC is to encourage collective discussion of the often subjective and vaguely defined concepts used to track and assess the performance of the public highway system. All States define their highway systems in accordance with Federal Highway Administration guidance and in cooperation with Metropolitan Planning Organizations and other State and local agencies. This guidance is by its nature imprecise and vague, yet funding allocations and measures of performance are based upon the interpretation of the State in question. There is a need for a collective “meeting of the minds” among practitioners to ensure equitable treatment within and between States. Cross border coordination is another issue which would benefit from collective discussion and decision making to ensure a “seamless” highway system across the Nation.

Who is the Target Audience?

HiDaC is intended as a practitioners’ conference for new and experienced mid-level analysts and highway data managers involved with the day-to-day activities associated with highway data collection, processing, and analysis from the States, Federal government, and local planning agencies throughout the country.

For More Information:

For more information about the HiDaC conference series or to express interest in hosting or as a potential exhibitor at the 2013 HiDaC conference, please contact:

Michael Fay, P.E.
Highway Data Services Bureau
New York State Department of Transportation
50 Wolf Road, 4-2

Albany, NY 12232
(518) 457-1965

Summary of Previous Conferences:

The 2011 Highway Data Workshop and Conference

The 2011 HiDaC was a held from September 21 to 23 in Buffalo, New York as a concurrent conference with the annual meeting of the New York Upstate Section of the Institute of Transportation Engineers. Sessions for both events were held in parallel with attendees having the option of attending whichever session best met their needs. It was preceded by a one-day HPMS training session offered by the Federal Highway Administration.

The full agenda for the conference is shown below.

Tuesday, September 20
Highway Performance Monitoring System Training - Joe Hausman, Federal Highway Administration
Wednesday, September 21
HPMS Software - Tom Roff, FHWA; Michael Fay, NYSDOT; Tina Hatcher, Florida DOT

2011 Highway Data Workshop and Conference

2011 ITE NY Upstate Section Annual Meeting

Wednesday, September 21
2011 HiDaC Welcome Session 1: Transportation Systems Management During Emergencies
Intro. to Highway Data - one state's approach Western NY 2010 Snowstorm - Traffic Management Planning & Regional Mobility Impacts
Michael Fay, New York State Department of Transportation
An introduction to the highway data concepts addressed by HiDaC using New York State as an example. Mike Smith, Niagara International Transportation Technology Center
Rick Galliavan, NYS Thruway Authority Traffic Supervisor
Captain Michael Nigrelli, New York State Police
2011 Annual TTI Urban Mobility Report Advanced Transportation Simulation Modeling for Transportation System Evaluation and Management during Emergencies
David Schrank, Texas Transportation Institute Adel Sadek, State University of New York at Buffalo
Data Collection Using LIDAR Technical Tour: Niagara International Transportation Technology Coalition (NITTEC) & Buffalo's Metro Facility
Goro Sulijoadikusumo, Hawaii Department of Transportation
Welcome Reception & Tour aboard the USS Little Rock
Thursday, September 22
Developing new guidance for functional classification Session 2: Signal & Intersection Control
Joseph Hausman, Federal Highway Administration Greater Buffalo-Niagara RTC's Signal Optimization Program
and participating state DOT representatives Lorenzo Totoli & Heath Lagoe, Fisher Associates
A discussion of the development of new guidance for Functional Classification. Functional Classification is the system by which roads are classified for analysis, funding, and design purposes. Signal Optimization - A Tale of Two Cities
Don Adams, Creighton Manning Engineering
In-Sync Adaptive Traffic Signal Control Technology
Tom Cooper, Rhythm Engineering
Implementing HPMS - existing state practices Session 3: Transportation Modeling & Simulation
Tina Hatcher, Florida Department of Transportation Educational, Clinical and Transportation-based
Rachel Beauregard, Vermont Agency of Transportation Research Studies using Motion Simulation Kevin Hulme, State University of New York at Buffalo
A discussion of how some states assemble the annual Highway Performance Monitoring System submittal.
Microscopic Modeling
Overview of Traffic Monitoring in a Large State Michael Davis, Greater Buffalo-Niagara Regional Transp. Council
Catherine Wolff, Texas Department of Transportation Integrated Traffic & Driving Simulation
Selected aspects of the traffic monitoring program in Texas. Shan Huang, State University of New York at Buffalo
Lunch Speaker- David Winter, Office of Highway Policy Information, Federal Highway Administration
Using Data to Support Performance Management Session 4: Sustainable Transportation
Ralph Volpe, Federal Highway Administration  
The use of highway and related transportation data to support performance management. Examples will concentrate on measures related to system management & operations and freight management.  George Grasser, Partners for a Livable Western New York
Wende Mix, Buffalo State College
Engineering Analyses and Use of Traffic Data Session 5: Road Safety
Michael Fay, New York State Dept of Transportation Sources, strengths, and weaknesses of traffic data and how to utilize and forecast traffic data. Safety Engineering John McGill, Hatch Mott McDonald Audible/Tactile Pedestrian Signal Device Study James R. Pond, Monroe County (NY) Dept of Transportation
Friday, September 23
New Methods to Collect, Analyze and Apply Highway Data: Recent work sponsored by the Exploratory Advanced Research Program - David Keuhn, Federal Highway Administration
Field Data Collection using tools such as a Videolog Session 6: ITS and Data
William Johnson, Colorado Dept of Transportation The NITTEC-SUNY Buffalo Data Warehousing Project
Strategy, projects, and tactics used at the Colorado Department of Transportation to meet data demands. The intent is to provide insight into policy, business process and analysis, leveraging existing projects, and tools used to collect roadway data. Athena Hutchins, Niagara Int. Transportation Technology Center
Adel Sadek, State University of New York at Buffalo
INRIX Data and Traffic-enabled Services
Pete Costell, INRIX
Collecting and Using NYSDOT Pavement Condition Data Michael Rossi, New York State Dept of Transportation Session 7: Transportation & Workforce Development
A description of NYSDOT's visual pavement condition The 2011 Cyber Engineering Workshop for Young Women
scoring system, how this data can be used to estimate HPMS data items such as cracking and overlay thickness, and a discussion of the pavement preservation and public benefit models under development that can be used to evaluate the effectiveness of the paving programs. Ken English and Kevin Hulme, SUNY at Buffalo
Encouraging Young Men and Women to Consider a Career in Science and Engineering
Jason Havens, Clark Patterson Lee


The 2009 Highway Data Worshop and Conference

HiDaC 2009 logo

The 2009 HiDaC was held September 22-24 in Oakland, California, co-hosted by the California Department of Transportation (Caltrans) and the University of California, Berkeley's Institute of Transportation Studies, Technology Transfer Program. The conference was also streamed live to a nationwide-audience.


Welcome and Keynote

Welcome: Sara Chesebro, Emcee Travel Forecasting & Analysis, California Department of Transportation
Keynote: Coco Briseno Division of Transportation System Information, California Dept. of Transportation

Highway Data Overview – Panel Session

What are the biggest challenges and/or the top priorities of your state's DOT for collecting and managing data and how are you pursuing these?

Rodney Floyd
(presenting remotely)
Chief, Transportation Statistics Office
Florida Department of Transportation
Ron Vibbert
(presenting remotely)
Manager, Asset Management Section, Bureau of Transportation Planning
Michigan Department of Transportation
Rob Robinson
(presenting remotely)
Data Management Unit Chief
Illinois Department of Transportation
Bill Cloud
(presenting remotely)
Chief, Data and Statistics Bureau
Montana Department of Transportation
Michael Fay
(presenting on site)
Supervisor, Highway Data Section
New York State Department of Transportation

HPMS Reassessment, Implementing Change

HPMS since it's inception in the early 80's, has been a vital program for FHWA. Much of the data reported in the system has a direct impact on funding, planning, performance measurement, and public accessibility to a vast amount of highway related data. This session will review the basic purpose and functionality of the HPMS with a focus on the upcoming HPMS 2010+ Reassessment.

Robert Rozycki FHWA, Office of Highway Policy Information

HERS-ST using HPMS Data

A detailed breakout of a major use of HPMS data, the (Highway Economic Requirements System (HERS) model, will be presented within this session.

Chris Chang FHWA, Office of Asset Management


Use of the Web as a Tool to Display GIS Maps

What has been occurring in the last few years is the further use of the web as a tool to display GIS maps, for instance, the use of Google maps that allow for displaying third party maps when they are geo-referenced. One in-house example is the street view feature Google maps provides and that is linked up with our GIS maps created for the Advanced Planning Department to quickly view locations in light of ADA requirements. Meanwhile, another example is the right-of-way information displayed via map-linking on Google Earth.

Chris Urkofsky Caltrans District 4 - Right-of-Way Engineering & Surveys
Dick Fahey Caltrans District 4 - Office of System and Regional Planning

The Pavement Management Program Used at the City/County Level

This presentation focuses on how MTC uses StreetSaver in the region to track jurisdictions' performance in the area of preventive maintenance / pavement preservation, and how we use performance measures in the allocation of regional funding for local street and road maintenance. The presentation will give an overview of the software and how it is used as an asset management tool in our region.

Sui G. Tan Regional Streets & Roads Program, Metropolitan Transportation Commission (MTC)
Theresa Romell Regional Streets & Roads Program, Metropolitan Transportation Commission (MTC)

Measuring the Quality of Traffic Information

While there are numerous data collection and estimation methods in use today, there are no broadly-accepted metrics to measure the quality of traffic information. The emergence of private providers of traffic information requires that agencies be able to verify and monitor the quality of data in order to procure it. This technical session will highlight work currently underway in both academia and industry groups to bring about clear and robust metrics and methodologies that allow agencies to evaluate and benchmark data services against their needs.

Len Konecny
Vice President, Business Development, Clear Channel Radio - Total Traffic Network
Chris Scofield
Principal Scientist, Inrix
Kristin Tufte, PhD Research Assistant Professor, Portland State University

Mobile Millennium: GPS Mobile Phone as Traffic Sensors

A partnership between Caltrans, UC Berkeley, NAVTEQ and Nokia—with support from the federal Safe Trip-21 initiative—the Mobile Millennium pilot project intends to establish the modalities of traffic data collection from mainstream mobile GPS devices. With speakers from the California Center for Innovative Technology (CCIT) and the Nokia Research Center, this technical session will highlight key features of what constitutes an integrated research and development (R&D) program, including findings from the February 20008 Mobile Center field experiment, the design of the Mobile Millennium pilot, and what this all means for roadway operators. For more information, please see http://www.traffic.berkeley.edu/theproject.htm

Alexandre Bayen
Assistant Professor, UC Berkeley ITS California Center for Innovative Technology (CCIT)
Joe Butler Mobile Millennium Project Manager

Tour of Caltrans District 4 TMC & MTC's 511.org Ops Center

This field trip will feature the real-time operations of the Caltrans District 4 Traffic Management Center (TMC) and its integration with the 511.org services provided by the Metropolitan transportation Commission (MTC), which serves as the metropolitan planning organization (MPO) for the nine-county San Francisco Bay Area. The co-location of these two separate programs is a testament to successful inter-agency cooperation that benefits the traveling public. For more information on the Caltrans District 4 TMC, please see http://www.dot.ca.gov/dist4/realtime.htm

For more information on the advanced traveler information services provided by MTC's 511.org, please see http://traffic.511.org/traffic_map.asp

Kane Wong Caltrans District 4 Traffic Operations


2007 HiDaC

2007 HiDaC logo

TDOT hosts the 2007 Highway Data Conference

September 18 to 20, 2007
Embassy Suites - Nashville, Tennessee

The 2007 Biennial National HiDaC (Highway Data) Conference held September 18-20th at the Embassy Suites-Airport location was a very successful event.

This is a conference that was hosted by the Tennessee Department of Transportation (TDOT) in conjunction with the Federal Highway Administration (FHWA). The focus of this meeting was to encourage collective discussion of the concepts used to track and assess the performance of the public highway system highlighting highway system inventories, designations and performance. New and experienced highway data professionals involved in day-to-day activities associated with highway data collection, processing and analysis were invited to attend from around the country.

Commissioner Gerald F. Nicely and FHWA TN Division Administrator Bobby Blackmon participated in the Opening Remarks on Tuesday. Following the Welcome delivered by Steve Allen, TDOT Director of Project Planning, was a Panel Discussion covering topics such as Highway Data: Overview of State Practices, New Initiatives and Technologies and Functional Class. Involved in the discussions were Lynn Humphrey, HPMS Coordinator for TDOT, Rob Robinson, Data Management Chief of Illinois DOT, Rodney Floyd, Highway Data Collection Manager of Florida DOT, David Craig, GIS Data Base Manager of Colorado DOT, Jeremy Freeland, Transportation Planning Specialist Supervisor for Pennsylvania DOT, Peggi Knight, Director of Office of Transportation Data of Iowa DOT, Brian Domsic, Data Base Administrator of California DOT, Michael Fay, Supervisor of Highway Data Section in New York, Mark Berger, Data Resource Manager with the Massachusetts Highway Department, Pat Whittaker, Functional Class Manager of Washington State DOT and Ralph Volpe with the FHWA - GA Division.

There were a total of 30 states that participated and attended this conference. The Local Committee that worked on this consisted of Cynthia Allen, Steve Allen, Chris Armstrong, Tom Every, Debbi Howard, Lynn Humphrey, Nermine Nashed and Glenda Tyus. The members of the Transportation Committee were Bill Hart, Brandon Darks, Marketta and Monica Wakefield.

Wednesday was a full day with sessions ranging from Local Roads Inventoried presented by William Frawley, Research Scientist of the Texas Transportation Institute to Indian Reservations and Federal Ownership explained by David Winter, Division Chief with the Office of Highway Policy Information - FHWA-Washington, DC.

The last day featured Tina Hatcher, the HPMS Coordinator from Florida. She discussed Performance Measures using Highway Data as well as a demo on Curvature Extension and Roadway Geometry.

There were 101 participants that attended this event. Evaluations indicated that this was an informative conference that balanced a good dose of southern hospitality with fun.

2007 HiDaC Agenda:

Tuesday, September 18

10:30 a.m.    Introduction to Highway Data -Michael Fay - New York State DOT
1:00 p.m. Welcome and Opening Remarks
TDOT Commissioner Gerald F. Nicely
FHWA Division Chief for Office of Highway Policy Information - David Winter
FHWA Tennessee Division Administrator - Bobby Blackmon
TDOT Chief of Environment and Planning - Ed Cole
TDOT Project Planning Director - Steve Allen
1:30 p.m. Panel Discussion on Highway Data: Overview of State Practices (Data Quality/Data Control), New Initiatives/Technologies, Functional Class
These topics will cover best practices from various states
  • Facilitator: Steve Allen
  • Peggi Knight - Iowa DOT
  • Lynn Humphrey- Tennessee DOT
  • Brian Domsic - California DOT
  • Rob Robinson - Illinois DOT
  • Michael Fay - New York DOT
  • Rodney Floyd - Florida DOT
  • Mark Berger - Massachusetts DOT
  • David Craig - Colorado DOT
  • Pat Whittaker - Washington State DOT
  • Jeremy Freeland - Pennsylvania DOT
  • Paul Tanner - Georgia DOT

Wednesday, September 19

8:00 a.m.    William "Bill" Frawley (TTI) - Traffic Count Site Random Selection Process
Fred Orloski (FHWA-Washington DC) - HPMS Traffic Data
9:30 a.m. Web based Applications for Data Collection
Jeremy Freeland (Pennsylvania DOT) - Web based Applications
Pat Whittaker (Washington State DOT) - HPMS Web Applications

Special Systems
David Winter (FHWA-Washington DC) - Indian Reservations and Federal Ownership
1:00 p.m. Linear and other referencing systems
Rob Robinson (Illinois DOT) - GIS Systems
David Craig (Colorado DOT) - GIS Calibrating Anchor Points/ARC Segments/LRS
Peggi Knight (Iowa DOT) - Linear Referencing Systems
Mark Berger (Massachusetts DOT) - Linear Referencing Systems
3:30 p.m. Inter-modal Connectors and NHS
Ralph Volpe (FHWA - Georgia Div) - Updating and Identifying NHS Inter-modal Connectors
7:00 p.m. General Jackson Showboat Dinner Cruise

Thursday, September 20

8:00 a.m.    Highway Performance Monitoring System
David Winter (FHWA-Washington DC) - HPMS Reassessment Activities
8:45 a.m. Data Management and Linkage
Tina Hatcher (Florida DOT) - Performance Measures using Highway Data
Demo on Curvature Extension & Roadway Geometry
9:45 a.m. Closing Session - Facilitator: Steve Allen


2005 HiDaC

2005 HiDaC logo

Northeast Regional Highway Data Workshop & Conference

September 6-8, 2005
The Gideon Putnam Resort & Spa - Saratoga Springs, New York

The first biennial highway data conference was held at the Gideon Putnam Resort & Spa in Saratoga Springs, New York, from September 6 to 8, 2005. With assistance from staff of the Pennsylvania DOT, the Vermont Agency of Transportation, the FHWA NY Division office, and the FHWA Highway Performance (HPMS) Division in Washington, the New York State Department of Transportation (NYSDOT) hosted a conference which brought together State, Federal, and local officials who deal with highway inventory, highway system designations, and highway performance issues across the country. While originally proposed as targeting the Northeast region, attendees included staff from the transportation agencies of 14 different States and the FHWA Division offices in 9 different States ranging from Rhode Island to California. In addition, there were three FHWA HQ and resource center offices represented, 15 vendors, five MPOs, and one territory (Puerto Rico).

Conference Summary

Michael Fay of the NYSDOT Highway Data Services Bureau opened the Conference on Tuesday, September 6, and was followed by welcoming remarks from Paul Wells, the NYSDOT Chief Engineer, and Robert Arnold, Division Administrator of the Federal Highway Administration, New York Division. David Winter, representing the FHWA Office of Highway Policy Information, then spoke on the national perspective with respect to highway data. Tom Kearney, FHWA-NY Division, closed the general sessions with an interactive discussion with the audience to determine who was in attendance and why and thereby elicit the nature of highway data and the highway data community.

Following the general sessions, David Winter and Ralph Volpe of the FHWA Highway Systems Performance Division gave a mini-course on the FHWA Highway Performance Monitoring System for those attendees not familiar with HPMS.

The opening day was concluded with a welcoming dinner and guest speaker Henry L. Peyrebrune, retired NYSDOT First Deputy Commissioner. Mr. Peyrebrune spoke on the HPMS reassessment performed in the late 1990's for which he was the consultant, and compared its goals and intent with that of the upcoming HPMS reassessment in which he will also play a role.

Highway System Extent, Designations, and Performance

The remainder of the Conference was basically divided into four parts: one each covering extent, designations, and performance, followed by sessions on the FHWA Highway Performance Monitoring System which attempts to bring all three together into one common reporting format.

Highway System Extent

Michael Fay of NYSDOT led the Highway System Extent discussion with a description of the type of highway inventory data collected at the Federal (represented by HPMS) and State levels. Mark Berger of the Massachusetts Highway Department followed with a description of the types of data Massachusetts collects at the local highway level and why. All four panel participants, Michael Fay, Mark Berger, Gaye Liddick of PennDOT, and Brian Domsic of CalTrans, discussed the similarities and differences between their State's operations and those described by Mr. Fay and Mr. Berger.

Rick Bennett, NYSDOT pavement management supervisor, followed with a discussion of some of the tools used for automated highway data collection, including an Automated Road Analyzer (ARAN) vehicle, photolog, and e-score (an automated tabulation device for visual data collection). Donna Wilson then discussed the Vermont Agency of Transportation (VAOT) videolog system. As a data analysis and presentation tool, Johnathan Croft of VAOT demonstrated the power of the straight-line diagram software used by Vermont.

As an illustration of the complexities of highway information, Tom Perreault of the NYSDOT Office of Legal Affairs discussed ownership and jurisdiction issues, especially with regard to State designated arterials and State Highway Law. David Woodin of the NYSDOT Traffic Engineering & Highway Safety Division, in turn, discussed the various highway designations as represented by the signing along the highways, including Interstate, US, and State touring routes as well as county routes, reference markers, and mileposts.

Highway System Designations

Tom Kearney of the FWHA-NY Division led the highway systems designation sessions beginning with a discussion of the rules, regulations, and procedures for designation of Interstate highways (such as the recent conversion of State Route 17 in New York to Interstate 86) and the National Highway System. In conjunction with this discussion, Holly Lisle, FHWA-Iowa Division, gave a brief overview of the events being planned for celebration of the 50th anniversary of the Interstate System.

A discussion of Urban Area Boundaries, and their relationship to designation of highways with urban versus rural functional classifications, was led by Ed Christopher, FHWA Resource Center, with input from Tom Kearney, FHWA-NY, and Rich Peters, a regional planning and program manager for the NYSDOT Hudson Valley Region. Mr. Peters' experience ranges from rural Columbia County whose only city is less than 8,000 people to the well-known, very urban/suburban Westchester County of 1 million residents adjacent to New York City.

Highway System Performance

Gaye Liddick of PennDOT led a discussion of the types of performance data collected as part of highway data. Joining him were Phil Bell of the NYSDOT Office of Policy & Performance to discuss how some of this data is expected to be used in system performance monitoring and Robert Arnold, FHWA-NY Division Administrator to discuss some of the FHWA efforts in this area.

Tim LaCoss, FHWA-NY, and Rick Bennett, NYSDOT, discussed some of the pavement condition and performance data, how it is collected and how it is used. Michael Fay, NYSDOT, and Bernard Byrne, VAOT, discussed some of the traffic monitoring data that is collected and how each State uses this data to estimate travel on roads which are not routinely monitored.

Mike Long, Chief of the PennDOT Roadway Management Division, gave a comprehensive overview of the PennDOT roadway management system and how it developed and evolved since its inception in the 1980's. He provided a comprehensive picture of one State's approach to inventory and pavement condition data collection and management. Continuing with the PennDOT theme, Laine Heltebridle, PennDOT, and Carolyn Carney (formerly Carolyn Renner), Southwestern Pennsylvania Commission (the Pittsburgh area MPO), discussed the cooperative State/local efforts in Pennsylvania toward collection and management.

The final highway system performance presenter was Lou Adams of the NYSDOT Office of Policy and Performance discussing Asset Management and its dependence on comprehensive and accurate highway data to use in asset performance analysis and management activities.

The Highway Performance Monitoring System

The Conference closed with two sessions on HPMS. The first was a discussion of current activities within the HPMS function by David Winter, Chief of the Highway System Performance Division of the FHWA. Mr. Winter also discussed the upcoming HPMS reassessment introduced at the welcoming dinner by Henry Peyrebrune.

The second HPMS session and final session of the Conference was a compare and contrast session of how different States, large and small, handle the processing of HPMS data. Involved in the discussion were the FHWA Division representatives from New York (Tom Kearney), Rhode Island (Ralph Rizzo), and Delaware (Paul Lang) and the State HPMS coordinator from CalTrans (Brian Domsic).

Vendor Presentations & Equipment Displays

In addition to the main agenda of the Conference, several presentations were offered by the vendors present at the Conference displaying their products and the work they've done for different State and other transportation agencies. These presentations included demonstrations of various traffic monitoring equipment, GIS-based highway data applications, and mobile and remote highway data collection techniques. In addition to the vendor exhibit tables open throughout the Conference, NYSDOT displayed some of its own traffic monitoring, photolog, and pavement management data collection equipment during the second day of the Conference.

Page last modified on November 7, 2014.
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000