ABJ30 Members and Friends,
Thanks so very much to all who provided ideas, text, and editing for our contribution to
the surveymonkey collection of committee activities - We will be working on these topics
at our Annual Committee Meeting as these descriptions are just the tip of our iceberg!!!
Thanks again!!
Data Integration and New Data Acquisition Paradigms - A breakthrough in Transportation
Data Utilization, Transportation Engineering Analytics and Performance Measurement
Complex infrastructure investment, planning and operations decisions require large amounts
of data. Transportation data field experienced an explosion of new data sources, data
collection methods and engineering analytics approaches in the past few years. High costs
small sample travel time and speed data collections were replaced with low cost large
sample commercial speed data from private providers. New GPS-based methods in travel
surveys allowed for much higher quality data with lower respondents burden. Travel
information based on cell phone data became commercially available and Bluetooth
technologies became state-of-the-practice in just a few years. However what is equally if
not more important is advancements in the ways transportation agencies started to approach
analysis and utilization of the acquired information. Data in itself is not enough for
providing well-founded knowledge about transportation system. The data from numerous often
inconsistent and limited data sources needs to be integrated and transformed into
knowledge. ABJ30 committee had identified new emerging data acquisition trends and
transportation data integration as main directions in future transportation data
management. Extensive discussions were generated by sessions on new traffic data sets at
the 90th Annual TRB Meeting and a groundbreaking data integration workshop was conducted
at the 91st Annual TRB Meeting. Necessity to analyze and integrate newly emerged large
transportation data sets brought data integration issues to the forefront of the
transportation data analysis and management. The workshop led to a number of research
statements aimed at improvements of decision processes through innovative data integration
methods and approaches.
Archived Data Users Services (ADUS)
The advent of the Archived Data User Service (ADUS) has been a significant breakthrough
for ABJ30. In the 1990s, with leadership from members of a number of TRB committees, there
was a realization in the transportation community that the large amounts of data generated
by ITS systems - data such as freeway speeds and volumes from ramp meters, VMS messages,
and vehicle location data - was useful for purposes beyond the immediate, real-time
management of transportation systems. This data is valuable for non real-time purposes,
including evaluating and refining the performance of those real-time traffic management
applications, informing the planning process, research and policy-making decisions. In
1998, the FHWA created an addendum to the ITS Program Plan to articulate the need and
vision for ADUS for the "collection, manipulation, retention, and distribution"
of ITS data.
ADUS systems have been created around the country, including publicly funded,
university-based archives and commercial archives. These ADUS systems store and visualize
a wide variety of multi-modal data from freeway ramp meter speeds and volumes and VMS
data, to include arterial signal data, transit data and more. The victory of ADUS is that
transportation data archives, considered new technology fifteen years ago, are now
considered mainstream technology. The initial goal of understanding archival and
preservation of ITS data has been completed; however there is much more work to do on
expanding both the scope of the data archives and the analytical capabilities of those
archives, to ensure that the data are useful for future performance-based transportation
programs.
Census and New Sources: BIG DATA and OPEN DATA
One of the foundational data sources for transportation planning, originally conducted
every ten years, now is being collected continuously (American Community Survey). For
the first time it is possible to get free detailed demographic data for the entire nation
every year. The new small-area products represent a paradigm shift in evidence-based
practice. Up until this point it was accepted that small-area analysis might use data that
was several years old. Now there is a growing expectation that data will always be
current and with enough variables to tailor the analysis to each unique project. This
trend will continue into the future with the release of small-area work flow data from the
CTPP project. This data set will allow the finest level of analysis to date for journey to
work, travel demand models, and workplace characteristics.
The convergence of pervasive sensing, wireless connectivity, location-aware technologies
and social media promises to bring a sea-change in the way Big Data and Open Data can be
designed, managed and used. Sensors in the transportation system, when integrated with
those in the utility, health, energy, weather and environmental management infrastructure,
have the potential to foster novel new ways of improving livability, citizen engagement
and smart and sustainable cities. The Computational Transportation and Society
subcommittee provides a forum to stimulate discussion on fundamental computational, design
and policy innovations needed to integrate transportation to the rapidly transforming
ubiquitous information society.
The Future
As our urban centers grow and attempt to thrive, data will provide unique understandings
of how transportation systems serve the needs of passengers and freight. ADUS archives
will become increasingly important in the coming years with the advent of MAP-21 and its
focus on performance-based transportation measures, and the increasing emphasis on the
need to more efficiently operate and manage the nation's transportation
infrastructure.
The creation of programs that access Census data directly through the internet, such as
TIGERweb and the Census API, will usher in a new era of government transparency and
universal data access. A complicated data storage and online content delivery platform is
no longer needed to create online maps or demographic analysis tools. Someone with
programming experience does not need much more than a text file and some web space to make
Census data accessible to the public in new and exciting ways. In addition, data
integration and new forms of urban data, including General Transit Feed Specifications
(GTFS) and GTFS real-time (GTFS-R), for transit systems and GPS data that provides trace
data on moving vehicles (now part of an FHWA program to provide information from GPS to
MPOs and states for planning). Cloud-based technologies will make it possible to achieve
more accurate, accessible, and agile urban transportation data and data services for
transportation planners, researchers, and consumers.
Noteworthy Activity
ABJ30, along with National Data (ABJ10) and Statewide Data (ABJ20), sponsors a special
session at the Annual Meetings: the Travel Data Users Forum. It is designed to provide a
venue for the discussion of important or emerging issues regarding passenger travel data.
The Forum fosters a dialog among all data providers and users, helps identify sources of
representative and applicable local and national data, serves as a venue to identify and
discuss emerging issues, and encourages interaction within the passenger-travel-data
community.
The Forum began in 2005 and previous topics included:
* 2014- Shifts in Travel Behavior
* 2013- Long Distance Travel
* 2012- Health and Transportation data
* 2011- Data Sources for Livability
* 2010- Pedestrian and Bicycle data
* 2009- VMT: A Focus on Vehicle Miles Traveled
* 2008- Energy: How will the rising cost of energy affect travel behavior?
* 2007- Employment Data: Public and private sources
* 2006- NHTS and the need for travel behavioral data
* 2005- NHTS, CTPP 2000, FactFinder, LEHD
The Forum is designed as panel session geared toward engaging the audience in an open
discussion. It is broken down into 3 distinct phases, the keynote kick-off, panel remarks
and the audience discussion. It is coordinated by a moderator but tends to be very free
forum. As a result of the discussion forum research proposals have emerged, TRB
subcommittees spurred on, professional contact made and data issues explored. 2014 will
be the 10th anniversary of the Forum.
Catherine T. Lawson, Ph.D.
Chair, Geography and Planning Department
Director, Lewis Mumford Center
Associate Professor
University at Albany
Geography & Planning
AS 218 1400 Washington
Albany, New York 12222
(518) 442-4775
(518) 442-4742 FAX
(518) 209-1155 CELL