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24 strengthen the infrastructure for information sharing and make The MRUTC Maintenance Quality Assurance Resource existing information more findable. Rather than "adding one Site (11)--contains a collection of manuals, presentations more information source," the TKN coordinating function will and training documents on application of maintenance tap into existing information sources, making them more eas- level-of-service approaches in different states. ily accessible to those outside of the particular communities for which they were developed and reducing duplication of effort. Outreach materials can also document similar initiatives in TKN members will identify and leverage topically based infor- order to provide concrete examples of what a transportation mation-sharing initiatives within various communities. information portal might look like. One such example is the Future outreach activities should cite examples of existing European Union Transport Research Knowledge Center (12). information clearinghouses that are currently providing signif- With funding from the European Commission's Directorate icant value within communities of interest. They can point out General for Energy and Transport, a consortium of organiza- how the national TKN portal will support and strengthen these tions collects standardized information about research projects existing clearinghouses, serving as a "clearinghouse of clearing- and programs and makes this information accessible in a Web houses." Examples of existing clearinghouses include: portal. Researchers can submit information about projects, events, or links on their own. Information resources are search- The Transportation and Climate Change Clearinghouse able by sector, geography, mode, policy objective, and tool (6)--a one-stop source for information on "greenhouse type. Individuals and organizations are encouraged to become gas (GHG) inventories, analytic methods and tools, GHG- part of the "Transportation Research Knowledge Community" reduction strategies, potential impacts of climate change and participate by sharing their information resources and on transportation infrastructure, and approaches for inte- providing input on user information needs. While this exam- grating climate change considerations into transportation ple is focused on research projects, it does show how an organ- decision making." This national site was updated under ized effort to identify, qualify, and categorize information NCHRP Project 25-25, and the regional TKNs augmented resources across multiple topic areas can be structured. the information by collating state resources to add to Success of the TKN initiative depends on funding to support the site. The site is being maintained by the U.S.DOT professionals who will drive the information-sharing activities and NTL. at national and regional levels and who will ensure that infor- The National Work Zone Safety Information Clearinghouse mation on the portal is refreshed continually for different (7)--a clearinghouse of information on work zones, includ- topic areas. Reliance on purely voluntary information-sharing ing work zone fatality data, expert contacts, regulations, efforts or efforts that do not incorporate appropriate perform- research, standards and practices, and training courses. ance competencies will have limited effectiveness. Funding is The AASHTO Innovative Finance for Surface Transporta- needed to ensure an active and sustained level of coordination tion Clearinghouse (8)--containing information on innova- and networking. tive financing practices, organized topically and by project. This site was originally developed through an NCHRP proj- Step 2: Continue Outreach ect and is currently being maintained by AASHTO with sup- port from FHWA. Continuing outreach activities will sustain momentum The AASHTO Center for Environmental Excellence (9)--a achieved to date and raise broader awareness of the value that one-stop shop providing access to resources for "transporta- can be provided from a well-supported, sustainable TKN tion professionals seeking technical assistance, training, function. Outreach could be carried out by all stakeholder information exchange, partnership-building opportunities, organizations, including AASHTO and TRB committees with and quick and easy access to environmental tools." The Cen- knowledge and interest such as the AASHTO RAC TKN Task ter is supported by AASHTO and FHWA and is guided by Force, the Transportation Library Connectivity Pooled Fund an advisory board of state DOT and FHWA representatives. Study, members of the existing regional TKNs, the TRB Com- The Travel Model Improvement Program (TMIP) Clear- mittee on Library and Information Science for Transportation inghouse (10)--a clearinghouse of information in support (LIST), and the TRB Data Section. A single coordinator can of the TMIP's mission to "advance the state of the practice be designated for continuing outreach activities to maintain of travel modeling and planning analysis." The TMIP consistency and avoid duplication. A standard outreach activ- Web site includes topically organized links to information ity summary sheet can be developed so that a record of each resources. Each topic has an advisory panel. The TMIP meeting can be maintained and shared among those involved includes an e-mail list of modeling community members to in outreach. push information of interest and facilitate peer exchange. The research team recommends using a combination of the The Web site is sponsored by FHWA and maintained by a techniques employed within this project, including one-on- contractor. one sessions with key influential decision makers, briefings at