Small Projects Year 4 (2015-2016)
A Network-Level Decision Making Tool for Pavement Maintenance and User Safety
PI: Erdem Coleri (OSU), erdem.coleri@oregonstate.edu
Dates: 12/16/2015-12/15/2016
Status: Completed
UTC Project Information
Final Technical Report
Data from NCHRP 720 report (Chatti and Zaabar, 2012) show that reducing the road roughness by maintenance and rehabilitation can create $0.4 to $0.8 reduction in user costs (mostly related to vehicle maintenance and fuel consumption) for one truck for one lane mile. This data alone suggests that hundreds of millions of dollars can be saved annually by developing more effective pavement management strategies for the entire Pacific Northwest road network. Read More
Improved Safety and Efficiency of Protected/Permitted Right Turns for Bicycles in the Pacific Northwest
PI: David S. Hurwitz (OSU), david.hurwitz@oregonstate.edu
Dates: 12/16/2015-12/15/2016
Status: Completed
UTC Project Information
Final Technical Report
The goal of the research is to develop an understanding of the safety and operational implications of using the FYA to indicate a permitted right turn, and to provide general guidance as to when Protected/Permitted Right Turn (PPRT) phasing should be used to maximize the safety of non-motorized road users and the overall efficiency of signalized intersections in the Pacific Northwest. This goal is consistent with the PacTrans theme of Safe Travel on Mixed-Use Roads as the primary focus is to improve the safety of pedestrians and bicyclists in close proximity turning vehicles at signalized intersections.
Deployment and Validation of Low-Cost Wireless Sensors for Real- Time Lifeline Condition Assessment
PI: Daniel James Borello (OSU), daniel.borello@oregonstate.edu
Dates: 12/16/2015-12/15/2016
Status: completed
UTC Project Information
Final Technical Report
The Cascadia Subduction Zone along the coast of Oregon and Washington and the Circum-Pacific seismic belt near Alaska present significant seismic and tsunami risks to the Pacific Northwest. These natural hazards are capable of crippling the transportation lifeline infrastructure, particularly bridges, following a major event. Deployment of wireless sensors on transportation lifeline infrastructure would enable rapid evaluation of the condition and effective deployment of first responders and increasing the community resilience and safety of the transportation network.
Torsional Safety of Highway Traffic Signal and Signage Support Structures
PI: Andre Barbosa (OSU), andre.barbosa@oregonstate.edu
Dates: 12/16/2015-12/15/2016
Status: Completed
Project Information
Final Technical Report
The goal of this research is to study the load transfer of axially loaded drilled shafts in torsion and to evaluate existing methods used to design drilled shaft under torsional loading. This work will provide necessary data for tuning the design methods as the torsional capacity of these shafts will be evaluated, including torsional load transfer. Existing design procedures will be investigated, as will some of the newer approaches that have been developed but not yet validated.
Developing a clustering-based empirical Bayes analysis method for hotspot identification
PI: Yinhai Wang (UW), yinhai@uw.edu
Dates: 12/16/2015 – 12/15/2016
Status: Completed
Project Information
Final Technical Report
The identification of sites with promise, also known as crash hotspots or hazardous locations, is the first step in the overall safety management process. One widely applied approach to this task is the popular empirical Bayes (EB) method. The EB method is described and recommended in Highway Safety Manual (2010) for roadway safety management. The EB method can correct for regression-to-the mean bias and refine the predicted mean of an entity.
