September 2017 Vol. 25, No. 3

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The Shelf

Minnesota LTAP partners with the MnDOT Library to operate a state-of-the-art service that can help you track down almost any resource from Minnesota or beyond. Questions? Contact Marilee Tuite, Minnesota LTAP librarian, 612-626-8753, ctslib@umn.edu.

Field Measurements on the Effect of Temporary Rumble Strips in Work Zone Flagging Operations
Institution: Center for Transportation Research and Education Institute for Transportation Iowa State University
Report No: Part of DTRT13-G-UTC37
Date: May 2017
The Institute for Transportation at Iowa State University has released a report that quantifies the impact of two temporary rumble strip layouts at two different two-lane roadway construction projects in Iowa. The research may serve future study efforts in terms of hypothesis development and testing as part of a controlled evaluation.

Data-Driven Traffic Impact Assessment Tool for Work Zones
Institution: Department of Civil and Environmental Engineering University of Missouri-Columbia
Report No: Part of InTrans Project 15-535
Date: March 2017
The Institute for Transportation at Iowa State University has released a report that discusses the development of a prototype tool using historical data for work zones in the St. Louis region. The purpose of the report is to estimate travel times for planned work zones at sites that may not have sufficient historical work zone data in order to better accommodate work zone planning and scheduling.

Effective and Economical Cleaning of Pipes and Underdrains
Institution: The University of Akron
Report No: FHWA/OH-2017-13
Date: March 2017
The Ohio Department of Transportation (ODOT) has released a report that analyzes a method of increasing the service life of pavement by reducing the amount of standing water on roadways by cleaning pipes and underdrains. The research report responds to the public’s interest in keeping roadways clear of potholes and cracks without increasing the agency’s budget.

Partial Depth Precast Concrete Deck Panels on Curved Bridges: Finite Element Analytical Model of PCPs
Institution: The Center for Transportation Research at The University of Texas at Austin
Report No: March 2017
Date:
The Center for Transportation Research at the University of Texas at Austin has released a report that analyzes the performance of simulated precast concrete deck panels (PCPs). The purpose of the report is to study the impact of local stress concentrations in PCPs in order to understand the potential for cracking or crushing of the concrete in isolated regions.

Effect of Flat and Elongated Aggregate on Stone Matrix Asphalt Performance
Institution: National Center for Asphalt Technology at Auburn University
Report No: NCAT Report 17‐03
Date: April 2017
The National Center for Asphalt Technology at Auburn University has released a report that investigates the performance of stone matrix asphalt with different percentages of flat and elongated aggregate. The research explores whether the current standard of no more than 20 percent flat and elongated aggregate is necessary to ensure a satisfactory stone matrix asphalt performance.

Evaluating Vegetation Management Practices for Woody and Herbaceous Vegetation
Institution: Davey Resource Group, a division of The Davey Tree Expert Company
Report No: FHWA/OH-2017-16
Date: March 2017
The Ohio Department of Transportation has released a report that evaluates vegetation management practices that may help increase the efficiency and cost-effectiveness of roadside maintenance activities. The research aims to determine which methods may improve workers’ and roadway users’ safety while improving roadside aesthetics.

Cracking and Debonding of Thin Fiber Reinforced Concrete Overlay
Institution: Mountain-Plains Consortium Region 8
Report No: MPC 17-319
Date: April 2017
The Upper Great Plains Transportation Institute at the North Dakota State University that investigates whether macro-fibers incorporated in thin overlay pavements will result in reduced crack opening widths, vertical deflections, and debonding rates compared to that of unreinforced overlays as suggested by previous field studies. The report identifies how fracture energy may affect the cracking and debonding of thin concrete overlays when subjected to environmental loads.

Leveraging the Second Strategic Highway Research Program Naturalistic Driving Study: Examining Driver Behavior When Entering Rural High-Speed Intersections
Institution: Leidos, Inc.
Report No: FHWA-HRT-17-016
Date: April 2017
The U.S. Federal Highway Administration has released a report that aims to explore and quantify the stopping and scanning behaviors of drivers as they approached and entered rural high-speed intersections. The research provides insight into transportation safety by leveraging the Strategic Highway Research Program Naturalistic Driving Study databases.

Economical and Crack-Free High-Performance Concrete for Pavement and Transportation Infrastructure Construction
Institution: Center for Transportation Infrastructure and Safety/UTC program Missouri University of Science and Technology
Report No: cmr 17-007
Date: May 2017
The Missouri Department of Transportation has released a report that develops and validates the behavior of a new class of high-performance concrete (HPC) called Eco-HPC. The research examines two types of Eco-HPC, one for pavement construction and one for bridge infrastructure construction, that were optimized to develop high resistance to shrinkage cracking as well as to secure high durability.

Use of Crushed Recycled Glass in the Construction of Local Roadways: Current State of Recycled Glass Collection and Process in the State of Ohio
Institution: The University of Akron
Report No: FHWA/OH-2017-19
Date: May 2017
The Ohio Department of Transportation has released a report that assesses the feasibility of using crushed recycled glass as an aggregate in local roadway construction. The research examines whether there will be sustained supply of recycled glass for construction use in Ohio.

Analyzing the Impact of Median Treatments on Pedestrian/Bicyclist Safety
Institution: National Transportation Center University of Maryland
Report No: MD-17-SHA/UM/4-28
Date: May 2017
The Maryland Department of Transportation State Highway Administration has released a report that quantifies the impact of median treatments on several high-frequency pedestrian/bicyclist crash locations identified through the Pedestrian Roadway Safety Audit Program, and compares the effectiveness of different types of median treatments. The research examines the socio-demographic factors that may influence attitudes toward the installed median treatments.

High-Volume Recycled Materials for Sustainable Pavement Construction
Institution: Center for Transportation Infrastructure and Safety/UTC program Missouri University of Science and Technology
Report No: cmr 17-006
Date: May 2017
The Missouri Department of Transportation has released a report that evaluates the feasibility of using high-volume recycled materials for concrete production in rigid pavement. The research investigates whether 50 percent of the solids may be replaced with recycled materials and industrial by-products.

Investigation of a Suitable Shear Friction Interface between UHPC and Normal Strength Concrete for Bridge Deck Application
Institution: Civil, Construction, and Environmental Engineering Iowa State University
Report No: InTrans Project 10-379
Date: May 2017
The Institute for Transportation at Iowa State University has released a report that investigates the influence of several variables, such as normal concrete strength, interface roughness, and curing condition, on the shear transfer behavior across the interface between ultra-high performance concrete (UHPC) deck systems and a normal strength concrete deck. The research explores the possibility of using a thin layer of UHPC overlaying a normal strength concrete deck.

Evaluation of Asphalt Pavement Interface Conditions for Enhanced Bond Performance
Institution: University of Florida Department of Civil and Coastal Engineering
Report No: BDV31-977-37
Date: May 2017
The Florida Department of Transportation has released a report that describes a comprehensive modeling effort aimed at examining the potential impact of interface debonding on near-surface longitudinal cracking. The research determines the potential location and extent of interface debonding in order to introduce a debonded area in a pavement section and study the effect of interface debonding on stress redistribution and potential crack development.

An Analysis of the Benefits of Using Underground Tanks for the Storage of Stormwater Runoff Generated at Virginia Department of Transportation Maintenance Facilities
Institution: Virginia Transportation Research Council
Report No: FHWA/VTRC 17-R24
Date: June 2017
The Virginia Department of Transportation (VDOT) has released a report that seeks to quantify the monetary benefits of using underground storage tanks for the temporary storage of salt-laden runoff generated at VDOT’s salt storage facilities. The study was conducted because VDOT collects millions of gallons of runoff at its nearly 300 salt storage facilities each year, with some portion of this water being reused for the generation of salt brine.