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Chapter 4: ITS Deployment Support Programs

Chapter 4 describes the valuable role played by deployment support programs in ensuring the effective and successful implementation and use of ITS by State and local transportation agencies. These programs are the mechanism through which the ITS Program directly gathers data on the ITS needs of State and local agencies. They are also the ITS Program's mechanisms for ensuring that agencies understand both the value of ITS and the uses for ITS technologies, systems, models, and strategies that are produced through ITS research initiatives.

Four deployment support programs form the basis for achieving two critical, cross-program goals:

Sections 4.1 and 4.2 describe the programs that focus on integration and interoperability:

4.1 The National ITS Architecture Program
4.2 The ITS Standards Program

The National ITS Architecture is a definitive and consistent framework that guides ITS planning and deployment. ITS standards define how system components operate within that framework. By specifying how systems and components interconnect, the standards promote interoperability. Together, the activities of these two programs foster the principles of effective integration across the Nation and enable seamless, consistent transfer of information. These programs facilitate the ability of jurisdictions to operate collaboratively and to harness the benefits of a regional approach to transportation problems, and to cost effectively engage with the private sector.

Sections 4.3 and 4.4 describe the programs that promote the development and use of the ITS Knowledgebase and thereby support successful ITS deployment across the Nation:

4.3 The ITS Professional Capacity Building Program
4.4 The ITS Program Assessment Program

The ITS Professional Capacity Building (PCB) Program is focused on developing the ITS workforce; effective and successful ITS deployments require knowledgeable and skilled professionals ranging from maintenance personnel to managers to decision makers. ITS Program Assessment activities include conducting evaluations and tracking ITS deployments. The resulting information on costs, benefits, and lessons learned form the ITS Knowledge Resources--a set of databases that provide information based on actual deployment experiences. These databases support the investment decisions made by State and local transportation agencies on whether and how to invest in ITS.

Together, these programs offer a set of complementary mechanisms to deliver training, provide technical expertise and assistance, support technology transfer, and disseminate critical knowledge on research, technologies, and strategies. In addition, these efforts result in an informal needs assessment mechanism through which the ITS Program directly learns of and gathers data on ITS in order to:

Underlying the ITS deployment support programs is a strong emphasis on outreach to a wide variety of audiences to build awareness on ITS and its benefits, effectively disseminate information, provide a consistent message on ITS for the ITS Program and RITA, and ensure that decision-makers and the American public have easy access to information on ITS. Key outreach mechanisms include:

The ITS deployment support programs are designed to be flexible and evolve as National and programmatic needs change. Each stands ready to incorporate needs identified by the research initiatives. By providing this focused effort at the Federal level, the Nation benefits by having:

Structure of this Chapter. For each program, this section provides a description of the:

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4.1 The National ITS Architecture Program

Program Purpose

The National ITS Architecture provides a common framework for planning, defining, and integrating intelligent transportation systems. The National ITS Architecture is primarily comprised of subsystems, interfaces, and information flows:

A unique aspect of the National ITS Architecture is that it is independent of any specific manufacturing design or regional requirements. It is available as a resource to any region and is maintained by the US DOT. A software tool, Turbo Architecture, is available at no cost to assist in developing regional and local ITS Architectures. The National ITS Architecture also provides a mechanism for detecting gaps, overlaps, and inconsistencies between ITS Standards and the way in which information is exchanged across the various interfaces.

The National ITS Architecture was developed in close collaboration with stakeholders including representatives from: State and local governments; industry representatives from transportation, engineering, and manufacturing professional associations; standards organizations; and the ITS community (transportation practitioners, systems engineers, system developers, technology specialists, consultants, etc.). This wide cross-section of stakeholders ensures that the National ITS Architecture reflects the needs of deployments in urban, interurban and rural environments. The National ITS Architecture remains a living document that responds to changing needs; the National ITS Architecture Program team works closely with stakeholders to anticipate updates and changes that will result from the new research initiatives. Figure 4.1 below provides a high-level overview of how the National ITS Architecture defines information flows among various ITS users and subsystems (traffic control centers, travelers, transit operators, and emergency response providers) and ITS in-vehicle devices. More detail can be found at: www.its.dot.gov/arch/index.htm.

Figure 4.1: National ITS Architecture Information Flows.  A depiction of the information flows between transit, traffic, travelers, and emergency services.

Requirements for defining new elements for the National ITS Architecture are based on the definition of user services. A user service represents what the system will do from the perspective of users such as public agencies or system operators. The table below describes the 33 user services that comprise the National ITS Architecture, grouped into eight bundles for clarity. These user services were jointly defined by a collaborative process involving significant stakeholder input. New or updated user services can be added to the National ITS Architecture over time. A number of functions are required to accomplish each user service. For example, the traffic control user service is actually defined by over 40 "functions."

Table 4.1 User Services Bundles and User Services
User Service Bundles User Services
Travel and Traffic Management
  • Pre-Trip Travel Information
  • En-Route Driver Information
  • Route Guidance
  • Ride Matching and Reservation
  • Traveler Services Information
  • Traffic Control
  • Incident Management
  • Travel Demand Management
  • Emissions Testing and Mitigation
  • Highway-Rail Intersection
Public Transportation Management
  • Public Transportation Management
  • En-Route Transit Information
  • Personalized Public Transit
  • Public Travel Security
Electronic Payment
  • Electronic Payment Services
Commercial Vehicle Operations
  • Commercial Vehicle Electronic Clearance
  • Automated Roadside Safety Inspection
  • On-Board Safety and Security Monitoring
  • Commercial Vehicle Administrative Processes
  • Hazardous Material Security and Incident Response
  • Freight Mobility
Emergency Management
  • Emergency Notification and Personal Security
  • Emergency Vehicle Management
  • Disaster Response and Evacuation
Advanced Vehicle Safety Systems
  • Longitudinal Collision Avoidance
  • Lateral Collision Avoidance
  • Intersection Collision Avoidance
  • Vision Enhancement for Crash Avoidance
  • Safety Readiness
  • Pre-Crash Restraint Deployment
  • Automated Vehicle Operation
Information Management
  • Archived Data
Maintenance and Construction Management
  • Maintenance and Construction Operations

Program Approach

The National ITS Architecture Program was established in 1992 to coordinate the development and maintenance of the National ITS Architecture. An important event occurred in January 2001 when, in response to a TEA-21 provision, FHWA issued a final Rule on ITS Architecture and Standards61 that requires all State and local agencies to develop their own regional ITS architectures. Similarly, the FTA issued a notice on ITS Architecture Policy on Transit Projects.62

As a consequence of these regulations, all ITS projects must adhere to the regional architectures to receive Federal funding. The Department instituted these requirements recognizing that regional ITS architectures facilitate the ability of agencies to plan, design, and deploy interoperable systems and to better share information, manage traffic, and increase safety and mobility across jurisdictions. Both the Rule and the Policy took effect in April 2005.

An important and underlying principle of fostering effective ITS integration and interoperability is the use of the systems engineering process63--a best practice used throughout many industries including the information technology and software development industries. Use of the systems engineering process ensures that ITS deployments meet the needs and requirements of the system users and/or owners. The process provides managers with tools for risk management, better cost and schedule performance, and the development of a system that comprehensively addresses the needs defined by users and stakeholders. Both the Rule and the Policy require use of the systems engineering approach, yet provide the flexibility to allow the approach to be tailored to fit the needs of each ITS project.

Today, the National ITS Architecture Program continues to be responsible for facilitating the delivery of technical assistance, training, and outreach to State and local transportation agencies in support of the FHWA Rule/FTA Policy. In 2008, National ITS Architecture Program activities are focused on:

Program Accomplishments-to-Date

As described in the following graphic, the National ITS Architecture is a living document--it has continued to evolve in significant ways in response to ITS technology evolution. Similarly, the National ITS Architecture Program has continued to develop and evolve into a broad national effort to advise on and integrate regional ITS Architectures.

Figure 4.2: Continuous Evolution of the National ITS Architecture 1993-2008

The National ITS Architecture Program has had a number of accomplishments in the past two years. The program staff and modal partners have worked together to deliver:

Program Outcomes

Looking forward to 2009, Congress can expect:

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4.2 ITS Standards Program

Program Purpose

The ITS Standards Program provides a path to the interoperability of regional ITS systems. The goal of the program is to create standards and protocols that establish the communication rules for how ITS devices and operations centers "talk" to one other and exchange information to deliver ITS services within a complex multimodal transportation network.

A "standard" is a document that provides the software programming codes, definitions, and formats needed to create consistency and seamless communications exchange among shared information systems. Standards are developed through formal, consensus-based processes led by nationally and internationally recognized Standards Development Organizations (SDO) and include input from groups of manufacturers, State and local transportation professionals, professional associations and experts, and Federal ITS specialists.

As the use of ITS technology to manage transportation systems spreads, agencies are recognizing that integrated systems maximize the value of investments. By applying ITS standards to assist in integration, agencies are offered the following opportunities:

Program Approach

The ITS Standards Program provides Federal leadership to support the development and testing of ITS standards, assist in the delivery of technical assistance to State and local jurisdictions, maintain the technical validity of existing standards, and work with the broader transportation community to identify the need for new or modified ITS Standards.

The ITS Standards Program has established partnerships with a number of SDOs to coordinate the development of ITS standards and assure their maintenance after initial publication. In addition to standards development, the SDOs have played an important role in promoting the use of standards among both manufacturers and deployers. SDOs have a network of transportation and ITS professionals to help distribute information to State and local agencies and transportation professionals around the Nation. Similar to the National ITS Architecture Program, ITS Standards Program activities also include training and workforce development, knowledge transfer, and outreach and engagement with stakeholders.

The ITS Standards Program also works closely with the National ITS Architecture Program to ensure that program activities are coordinated and that new or modified standards are aligned with the National ITS Architecture. To ensure alignment, the ITS Standards Program has mapped existing ITS standards to the ITS research initiatives. For example, many of the center-to-center standards and center-to-device standards will support the ICM Initiative; the dedicated short-range communications (DSRC) standards will support the VII Initiative. The mapping process allows for the transportation community to identify how existing standards might be modified to better support the ITS research initiatives.

Standards Expert Panel

Supporting effective development and integrated deployment of ITS technologies requires an ongoing assessment of existing ITS standards and evaluations of new ITS standards needs. At the same time, there is a need to create a broad understanding of various user needs and how integrated ITS applications can increase the mobility and safety of transportation systems. To ensure that the ITS Standards Program meets user needs and delivers relevant results, SAFETEA-LU Section 5307 requires the Department to seek expert advice from an outside panel to examine the ITS Standards program and provide recommendations on its future. The ITS Program requested that the Transportation Research Board (TRB) convene this expert panel (see following textbox for results).

ITS Standards Expert Panel Recommendations

In 2007, TRB formed the Committee for a Study of Options for Streamlining Standards for Intelligent Transportation Systems65 to recommend the appropriate role of the ITS Program in standards development and deployment going forward.

The Committee recognized that:

The committee's recommendations for the Department and the ITS Program are to:

The ITS Program is acting on this advice and will produce a new ITS Standards Program Strategic Plan in 2009. The development of this program plan will include a selection of representatives from the panel to ensure a strong connection in future activities to the panel's recommended actions.

Activities of the ITS Standards Program fall into two primary categories--development and deployment. In the development category, program activities include:

The following textbox highlights the release (as of July 2008) of the most recent generation of ITS transit standards, known as Transit Communications Interface Profiles (TCIP).

ITS Transit Standards

Working closely with the ITS Program and Federal Transit Administration (FTA), the American Public Transportation Association (APTA) has released interface standards for ITS transit applications in the form of the Transit Communications Interface Profiles Standard (TCIP). The TCIP standard addresses the exchange of information and data at critical interfaces among transit business systems such as scheduling, fare collection, passenger information, transit signal priority and incident management.

Because TCIP is intended to cover a wide range of transit alternatives, a user-friendly tool has been recently released which allows transit practitioners to tailor TCIP to specific applications without needing the detailed knowledge of the underlying software. That tool is called TIRCE and is available through the APTA Standards Web Page. The TIRCE database is comprised of the core elements of TCIP and provides a comprehensive overview of the range of data elements and exchanges found in public transportation.

Pilot implementations of TIRCE and TCIP are underway in Seattle, Washington; Orlando, Florida; and Baltimore, Maryland. APTA is providing technical support to early users of the standard and its application tool. Early adopters of TIRCE are finding that the tool is capable of saving months of effort in defining data system interfaces. TIRCE provides documentation for purposes of ITS systems procurement and evaluation. Early adopters are also finding the tool to be of significant value when using it as a means of screening the requirements for and capabilities of proposed transit ITS data systems.

The TCIP Standard represents thousands of hours of expert effort provided by transit practitioners drawn from the public sector and private sector. Use of TCIP is expected to result in the additional benefits derived from the use of industry standards for interoperability and economies of scale.

More information is available at: www.aptastandards.com

In the deployment category, program activities focus on assisting the ITS community in the widespread use of ITS standards. In this area, activities include:

Program Accomplishments to Date

Figure 4.3 Number of Published ITS StandardsThe ITS Standards Program has had a number of significant accomplishments in the past two years. In the standards development area, technical consultants and public transportation professionals have worked together within SDO standards working groups to deliver the following:

In the standards deployment area, the ITS Program has worked closely with FHWA and FTA to accomplish:

Program Outcomes

Looking forward to 2009, Congress can expect:

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4.3 ITS Professional Capacity Building Program

Program Purpose

Successful on-the-job performance for ITS transportation professionals requires Federal, State, and local agencies and their private sector contractors to make workforce and professional development a high priority. The ITS Professional Capacity Building (PCB) Program was launched in 1996 to equip transportation professionals with the ITS-related knowledge, skills, and abilities to perform effectively in their jobs.

Beginning with the 1991 ISTEA legislation, the ITS Program has been directed to provide technical assistance to State and local governments seeking to use and evaluate ITS technologies. In 1998, the TEA-21 legislation specifically called for the development of a capable ITS workforce. This requirement was carried forth in 2005 in SAFETEA-LU (see textbox below).

ITS incorporates a wide variety of technologies and systems that are designed and developed, planned and deployed, and operated and maintained by an equally wide variety of transportation professionals located at State, regional and local levels. The ITS PCB Program's challenge is to design a program that ensures that these professionals have access to the most effective training through the most efficient and cost-effective delivery methods that reach targeted audiences. Another challenge is to ensure that the PCB Program and its training stays in tune with the needs of the stakeholders. To meet this challenge, the ITS PCB Program engages in internal and external efforts:

2005 Legislative Provisions for ITS PCB Program

Program Approach

To meet the legislative mandate for developing a capable workforce and efficiently providing technical assistance, the ITS PCB Program focuses its efforts in four areas:

Training. The ITS PCB Program develops and delivers training that meets a range of needs. Training is designed to:

An ITS Curriculum has been developed to guide effective training development. Department and Federal field staff and industry subject matter experts work together on curriculum teams to develop and review learning objectives and course content and consider course upgrades. For instance, two important teams include the Systems Engineering Curriculum Team (SECT) and the Systems Engineering Working Group (SEWG) which meet to ensure that systems engineering courses offer state-of-the-practice examples and relate to on-the-job needs.

As noted on the previous page, since 2005 the ITS PCB Program has worked to identify and incorporate innovative training delivery technologies to allow for just-in-time knowledge transfer, broad accessibility, and convenient and easy to use functionality. Key examples include web seminars and web-based training through the following programs:

Education. The ITS PCB Program exchanges learning materials with educators and instructors at universities, colleges, and community colleges, in addition to maintaining educational resources for all generations on the ITS PCB Program website (www.pcb.its.dot.gov/le_ew_sites.asp). The program also coordinates with the RITA University Transportation Centers (UTC) Program (http://utc.dot.gov/) to identify opportunities to leverage program resources in shared development of the next generation ITS workforce.

Technical Assistance. Technical assistance program activities are focused on the exchange of lessons learned and best practices through peer technical assistance. The ITS Peer-to- Peer Program (P2P) provides short-term technical assistance to agencies facing ITS planning, procurement, deployment, and operational challenges. P2P is an important tool for transferring ITS knowledge, resources, and experiences among public agencies and throughout the transportation industry. The P2P Program leverages the experiences of public and private sector ITS Peer Experts who volunteer to provide hands-on specific technical assistance to peers who are struggling with unique ITS deployment challenges.

Outreach. ITS PCB Program outreach is focused on promoting awareness of the program's resources. The primary outreach mechanism is the ITS PCB Program website that provides links to a range of learning opportunities from the US DOT program as well as associated program partners, universities, and university transportation research centers. For instance, one supplemental learning opportunity cited on the ITS PCB Program website is the I-95 Corridor Coalition's simulated Traffic Management program. The ITS PCB website can be found at: www.pcb.its.dot.gov.

To create targeted and effective delivery of ITS professional development, the ITS PCB Program partners with a number of agencies, organizations, and associations that include:

Program Accomplishments to Date

Since the inception of the ITS PCB Program in 1996, it is estimated that over 18,500 transportation professionals have utilized the extensive array of ITS learning opportunities (an average of 1,542 practitioners per year). Between 2006 and 2008, the ITS PCB Program continued its delivery of training and workshops in ITS. Accomplishments include:

Table 4.2 provides statistics and highlights on ITS training.

INSERT Table 4.2

ITS technical assistance has been equally successful. Since 2000, there have been over 600 P2P Program sponsored exchanges. Between 2006 and May 2008, there were 73 peer exchanges. Some P2P Program statistics include:

In the area of ITS education, the ITS PCB Program is working with other DOT PCB Programs to find ways to collaborate and leverage opportunities with the RITA University Transportation Centers Program. Staff from the ITS PCB Program have been working with UTC research directors to define a process for sharing in the development of new learning materials in order to leverage budgets in the development of the next generation workforce. In late 2007 and at TRB in January 2008, exchanges with UTC research directors and university instructors identified interest and enthusiasm to work with the Department's various PCB programs.

Program Outcomes

Transportation professionals involved in the education, training, and technical assistance opportunities provided by the ITS Professional Capacity Building Program testify to the merits of the various activities. Over the years, feedback from both the training and the technical assistance events have elicited responses such as:

"ITS is complex and constantly evolving. Since I'm involved at the operations end, I need to stay on top of changes in regulatory requirements, technologies, practices, and management tools ... Every single class I took has contributed directly to what I do now. Fundamentally, I benefit because classes teach you to think critically--how to define problems and incorporate the systems engineering model into project planning and management."

— Bob Sheehan, Freeway Operations Engineer, Northern Regional Operations, Smart Traffic Center (STC), Virginia DOT

"The training has been very effective, particularly from the standpoint of timing ... Because the CITE training is available on-line, I was able to take courses and immediately apply the material to my work. For example, while taking the Systems Engineering course, I was preparing for a stakeholder workshop that included a discussion of the systems engineering approach. ..."

— Matt Letourneau, P.E., PTOE, Principal Transportation Engineer, Edwards and Kelcey, Chicago, Illinois

"The training has been invaluable. It's given me a tremendously important grounding in what has to be done to develop the regional architecture, and equipped me as a planner to be able to provide direction to the consultants and ask intelligent, informed questions of the engineers involved at the project and regional architecture levels. The NTI Fellows Program workshops have given our key stakeholders valuable, time-efficient training as well."

— Tina Wu, AICP, Senior Planner, Regional Transportation Commission, Washoe County, Nevada

From a P2P Event at an Incident Management Coordinating Committee Meeting, Las Vegas, NV

"This training (peer event) did exactly what we had intended it to do. The instructors were very knowledgeable and the stakeholders were excited after the event to continue meeting and discussing Incident Management."

— Russell Robertson, FHWA (April 14-15, 2008)

From a P2P Event at Freeway Traffic Management Software/IRIS Peer Exchange, Stockton, CA

"I feel that this is an excellent program and has significantly helped us in our efforts to share the benefits of having IRIS be available as General Public License Open Source Software. It is our hope that more such software will become available through this process so that the products will be improved and the costs of development will be significantly reduced."

— James Kranig, Minnesota Department of Transportation (May 23, 2008)

From a P2P Event at U.S. Forestry Service ITS Bus Strategy Peer Exchange

"I think it was a great meeting and exchange of ideas."

— David Kack, U.S. Forest Service (USFS) (December 17-18, 2007)

From a P2P Event at HOT Lane Technology Peer Exchange, Seattle, WA

"With the help I had from the P2P group and the Washington DOT group I do not think it could have been improved."

— Terry Haukom, Minnesota Department of Transportation (February 20-22, 2008)

Looking forward to 2009, Congress can expect:

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4.4 ITS Program Assessment Program

Program Purpose

ITS Applications Addressed by the ITS Knowledge Resources70

Intelligent Infrastructure Intelligent Vehicles

Continued nationwide success of ITS deployment is dependent upon wise investment decisions made by those who choose to implement and integrate ITS as part of their State, regional, and local transportation systems. The ITS Program Assessment results provide decision makers (State and local executives; transportation planning, operations, and maintenance managers; ITS designers and developers, among others) with critical information needed to make sound investments regarding technology applications. The ITS program assessment function is focused on the evaluation of a wide range of advanced technologies (see side textbox) under real-world deployment conditions. Data and information (both quantitative and qualitative) that are learned from the project evaluations impart details regarding technology efficiencies, value, benefits, costs, performance and impacts. These results are supplemented and reviewed by a diverse and well-maintained network of ITS professionals throughout the Nation, yielding a powerful knowledge-base that supports informed investment, deployment, and operations decisions. To confidently provide this critical information, the assessment and evaluation capability must employ appropriate and robust evaluation techniques that result in clear and accurate information on the true value, effectiveness, and impacts of ITS. To remain relevant, the assessments and evaluations must:

Program Approach

The ITS program assessment activities are conducted in four areas that include Evaluations, Deployment Tracking, Knowledge Resources, and Outreach and Stakeholder Engagement.

Evaluations

Project deployments are chosen for evaluation from field operational tests, demonstrations, ITS Initiative testbeds, Congressionally-earmarked projects, and other venues. Results are analyzed to identify the value, effectiveness, and impact of ITS. As evaluations are completed, they are archived in the ITS Program's EDL.

Deployment Tracking

Since 1996, eight deployment surveys of State and local transportation agencies have provided updated snapshots of ITS technologies and systems deployed around the Nation and their level of integration. Analysis of this data provides comparative statistics on the progress of ITS deployment. In maintaining this baseline of technology adoption, the ITS Program has gained valuable insights into the practical use of ITS and the needs and information gaps of ITS professionals using these technologies. ITS deployment statistics can be found at: www.itsdeployment.its.dot.gov

Knowledge Resources

To promote ITS investments, evaluation results are segmented into information related to ITS costs, benefits, deployment status, and lessons learned and then widely disseminated through the ITS Program's Knowledge Resources databases on the ITS Program's website. The ITS Applications Overview database, for example, describes over 170 individual ITS technologies and provides references, contacts, as well as related cost, benefit, lessons learned, and deployment information for each. Further, over 400 publications, presentations, training, videos, and other resources have been generated from the evaluation results and are available via the ITS Electronic Document Library (EDL)71. The databases that comprise the ITS Knowledge Resources include:

Outreach and Stakeholder Engagement

The ITS Program has developed a wide network of ITS stakeholders engaged in all aspects of ITS. Program assessment activities include maintaining the stakeholder network and engaging international ITS professionals interested in sharing information on ITS benefits, costs and evaluation strategies and results through the International Benefits and Evaluation and Costs (IBEC) Committee.

Program Accomplishments to Date

Evaluations

From 2006-2008, the Program Assessment Program completed a number of evaluations, adding to the total of evaluations undertaken since 1998. The following provides the status of active evaluations as of October 2008:

Knowledge Resources

During this same time period, the Knowledge Resources were enhanced with new entries that nearly doubled the size of each of the ITS Knowledge Resources databases and generated greater use. Enhancements include:

Figure 4.4 Usage Rates for the ITS Knowledge Resources

Deployment Tracking

In 2007, the ITS Program Assessment Program team conducted the biannual ITS deployment and state-of-the-practice national survey, with detailed information on the 108 largest metropolitan areas. Results will be posted on the ITS Deployment Statistics website.

Stakeholder Outreach and Engagement

The following activities have been undertaken since 2006:

Program Outcomes

Users have provided high praise for the ITS Knowledge Resources

"The ITS Cost Database was very helpful for my agency when I was developing preliminary cost estimates of project concepts in ITS strategic plans, needs assessments, and feasibility studies for specific ITS investments."

"I have used the ITS Cost Database specifically when developing an ITS deployment plan in 2002 and determining the costs of traffic signal retiming projects in 2007."

"The Deployment Statistics Database is a good resource of statistical information on ITS topics from other States."

"The Lessons Learned Knowledge Resource site was excellent, easy to navigate, and contained useful information."

"The ITS Benefits Database site had exactly the types of information I was looking for and it was very relevant to the work I was doing."

The ITS Program Assessment's efforts at data collection, data synthesis, and data dissemination are valuable and of use to a wide variety of stakeholders and decision-makers. Users of the ITS Knowledge Resources databases turn to the information primarily when investigating the benefits of a potential investment or when initiating procurements.

The databases, for example, contain information on how agencies procure products and services, including their processes to judge quality and competitive prices. In particular, the Lessons Learned database highlights the procedural, institutional, and legal challenges faced by other agencies, and their solutions. The ITS Knowledge Resources databases and websites received over 178,000 visits over a 12-month period in 2007 and 2008. The Knowledge Resources are frequently assessed for their relevance, accuracy, and effectiveness. A user assessment group known as the Program Assessment User Session Experts (PAUSE) regularly convenes to discuss the value and usefulness of the Knowledge Resources with respect to their own decision-making needs. PAUSE comprises a broad array of 77 ITS stakeholders representing a wide variety of transportation agencies.

Additionally, international exchange and collaboration has helped develop much richer insights into the breadth of impacts that ITS can have when applied under varying conditions and with different types of networks. Frequently, international deployments will offer examples of benefits that are not being or cannot yet be demonstrated domestically on a widespread basis, such as automated speed enforcement and congestion pricing. One foreign country, for example, uniformly instituted automated speed enforcement across national highways and saw its fatal crash rate drop by 40 percent between 2006 and 2007. Other countries have implemented congestion pricing and have been able to evaluate and demonstrate the changes in mobility, access, and environmental quality that can be achieved, revealing the types of societal and economic costs associated with this strategy.

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