WSDOT is an active participant in the Transportation Pooled Fund (TPF) Program. The following information briefly describes the TPF projects that WSDOT leads and lists additional studies in which we are an active contributing participant.
Blast Testing of Full-Scale, Precast, Prestressed, Concrete Girder Bridges, TPF-5(115)
The objectives of this research are: (1) to assess the damage done to precast, prestressed girder bridges from a blast generated below the girders, (2) to compare this damage with a blast generated on top of the bridge deck, and (3) to develop recommendations for possible mitigation measures that would harden this type of bridge blast damage.
WSDOT, as the lead state, is currently performing an Environmental Assessment for the project. Plans are to build the bridges in the spring of 2006 and perform testing in the summer of fall of the same year.
State Partners: CA, FL, NY, OR, PA, TX, WA
Other Partners: FHWA
Roadside Safety Research Program, TPF-5(114)
WSDOT is leading this pooled fund project to cooperatively identify, analyze and develop solutions for roadside safety problems with the goal of reducing the tremendous loss of life that occurs on highways each year as a result of roadside crashes. Alaska, Louisiana, Minnesota, Tennessee and Texas have joined the consortium, and other states, such as California and Florida, are considering joining.
State Partners: AK, LA, MN, TN, TX, WA
Software Tools for Sharing and Integrating GIS Data, TPF-5(108)
WSDOT established a consortia of public and private entities for the purpose of
developing computer based tools that facilitates geo-spatial transportation data integration and sharing for a variety of purposes and uses. This consortium, Geo-spatial Integration and Sharing Data Consortium (GISDC), will be funded by a Pooled Fund arrangement and managed by WSDOT. The goal of the consortia is to continue developing, implementing and providing a variety of tools for sharing and integrating of geo-spatial transportation data.
State Partners: NE, OH, OR, TN, WA
Pavement Tools Consortium, TPF-5(090)
The Pavement Tools Consortium fosters the continued development and implementation of computer-based paving tools, such as: Pavement Guide, Virtual Superpave Laboratory, Media Library, HMAView, PMSView, Stockpile Blender, XPactor, and EverFE. The major focus of the pavement tools is the enhancement of pavement-related training and construction operations.
State Partners: CA, FL, ID, IL, KS, MD, MN, TX, WA
Pacific Northwest Snowfighters
The Pacific Northwest Snowfighters (PNS) Association strives to serve the traveling public by evaluating and establishing specifications for products used in winter maintenance that emphasize safety, environmental preservation, infrastructure protection, cost-effectiveness and performance. The consortium is dedicated to the creation and maintenance of specifi cations for winter maintenance chemicals and the optimization of their application on the roadway.
State Partners: CO, ID, MT, OR, WA
Other Partners: British Columbia
Pavement Reconstruction Scheduling Software
This consortium was formed through the State Pavement Technology Consortium (SPTC) to develop a software simulation tool which can be used to consider pavement design options along with construction scheduling, resource constraints, traffic management, and user-delays. The CA4PRS software is a construction and scheduling analysis tool to make sound construction project management decisions at each stage of the highway rehabilitation project: planning, design, and construction.
CA4PRS estimates how much pavement can be rehabilitated or reconstructed under different traffic closure strategies with given project constraints of: pavement design, lane closure tactics, schedule interfaces, and contractor logistics and resources.
State Partners: CA, MN, TX, WA
Fish Passage Capability through Modified Culverts: Flume
Research Study, SPR-3(096)
A “one of a kind” test bed for research to fi nd effective culverts for fi sh passage was developed through a partnership with Washington Department of Fish and Wildlife, Alaska, Oregon, California and FHWA. Research testing began in 2003 with a focus on testing existing and new culvert retrofi t designs to examine their ability to allow successful passage of juvenile salmonids. A number of hydraulic tests and fish behavior experiments are planned at the research facility, depending on future funding opportunities. The Battelle Memorial Institute, University of Washington and Washington State University are carrying out the research.
The results of this important research will help defi ne cost effective retrofi t designs for thousands of culverts that exist under highways and roads so that juvenile salmonids can survive their migration journeys.
State Partners: AK, CA, OR, WA
Other Partners: FHWA
Wiremesh and Cablenet Slope Protection, SPR-3(077)
Draped wiremesh and cablenet slope protection has been utilized by states for many years to control rockfall. The initial design and specifications for these draped wiremesh slope protection systems were developed using empirical methods by WSDOT in the late 1950’s for slopes that were generally less than 75 feet in height. Over the years the draped wiremesh slope protection designs have been modifi ed by other states so that nationwide we now have a large number of variations of designs, none of which have been quantified.
This project is now complete (2005), but the fi nal product was a standardization of design guidelines for wiremesh and cablenet slope protection.
State Partners: AK, AZ, CA, ID, NE, NH, NY, OR, PA, WA, WY
Pavement Research and Technology (SPTC), SPR-3(074)
Under this project, each state will create funding to allow technical staff and university researchers to participate in a series of project meetings focused on sharing information, identifying critical issues of mutual interest, developing plans for joint research and testing, and educating transportation professionals on the latest developments in the design, construction, reconstruction and maintenance of highway pavements.
State Partners: CA, MN, TX, WA
Strength and Deformation Analysis of MSE Walls at Working Loads, SPR-3(072)
The work performed under this pooled fund study has developed an improved method for internal stability design of Mechanically-Stabilized Earth (MSE) retaining walls, the K-Stiffness method. This method appears to produce a more cost-effective design for MSE walls as compared to the AASHTO Simplifi ed Method. The K-Stiffness method has only been developed and validated for high quality sandy backfIll soils. The next two phases will extend the K-Stiffness method to 1) marginal quality backfill materials and 2) full-scale field walls that will be monitored for validation. The validation of the K-Stiffness method for marginal quality backfill materials and monitoring full-scale walls is necessary
to incorporate this method into the AASHTO Load and Resistance Factor Design (LRFD) specifications.
State Partners: AK, AZ, CA, CO, ID, MN, MO, ND, NY, OR, WA, WY
Other Transportation Pooled Fund Projects in which Washington State Participates
- TPF-5(110) Validation of Numerical Modeling and Analysis of Steel Bridge Towers Subjected to Blast Loadings
- TPF-5(105) Transportation Library Connectivity
- TPF-5(098) Self-Consolidating Concrete – Applications for slip form Paving
- TPF-5(087) Electronic Appraisal Development Study – Phase 1
- TPF-5(080) Investigation of Low Temperature Cracking in Asphalt Pavements
- TPF-5(068) Long-term Maintenance of Load and Resistance Factor Design Specifications
- TPF-5(064) Western Alliance for Quality Transportation Construction (WAQTC)
- TPF-5(060) SPR-2(210) Safety Analyst
- TPF-5(052) SPR-2(207) Transportation Management Center
- TPF-5(046) Transportation Curriculum Coordination Council Training Management and Development
- TPF-5(039) Falling Weight Defl ectometer (FWD) Calibration Center and Operational Improvements
- TPF-5(029) High Occupancy Vehicle (HOV) Systems Pooled Fund Study
- TPF-5(017) WASHTO-X Technology Transfer Initiative
- TPF-5(010) Structural improvement of Flexible Pavements Using Geosynthetics for Base Course Reinforcements
- TPF-5(002) Updating a Guide to Standardized Highway Lighting Pole Hardware
- SPR-3(095) Establishment of a Program to Support the Research, Development, and Deployment of Cooperative
Vehicle-Highway Automation Systems (The Phoenix Project)
- SPR-3(079) CARS (Collision and Accident Reporting System)
- SPR-3(071) A New Approach to Assessing Road User Charges
- SPR-3(062) ITS Deployment Research and Professional Capacity Building
- SPR-3(049) Urban Mobility Study
- SPR-3(043) Development of a Self-Restoring Impact Attenuator
- SPR-2(187) Safety Hardware Crash Tested to NCHRP Report 350
- SPR-2(146) Testing of Roadside Safety Systems
- SPR-3(039) Demonstration and Evaluation of ITS Technology for the Rural Highway Environment aka FRONTIER