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NEWS FROM THE INSTITUTE FOR TRANSPORTATION

February 17, 2021

Top Stories

Smart Work Zone Activity App (SWiZAPP) makes work zones work

With the increase in the computing power of portable electronic devices such as smartphones, smart work-zone information can be exchanged simply and cost-effectively.
Logo: Smart Work Zone Deployment Initiative (SWZDI)
But that’s only one reason why Dr. Yaw Adu-Gyamfi, an assistant professor from the University of Missouri-Columbia, spearheaded a research project aimed to design, develop, and deploy a cross-platform mobile application for collecting and reporting real-time work-zone activity information. More
Want more information about the Smart Work Zone Activity App? Dr. Yaw Adu-Gyamfi recently led an Iowa LTAP webinar on the project and application. Watch Now

Snowplow route optimization offers big potential

The Iowa Department of Transportation (DOT) alone is responsible for servicing 24,000 lane miles of roadways during winter road maintenance operations. Optimizing the current routes used by snowplows has the potential to result in significant cost savings, improved safety and mobility, and reduced environmental and societal impacts.
Photo: Iowa DOT snowplow
A recent research project at the Institute for Transportation (InTrans) looked at operations for the Iowa DOT’s District 3, located in northwest Iowa, which services about 4,000 lane miles from 20 depots, to solve two optimization problems that could ultimately expand to other districts and local agencies. More

New spreadsheet tool helps determine optimum time for equipment replacement

Photo: Motor grader
A new spreadsheet tool will help local agencies plan for their equipment needs with more certainty. The Equipment Life-Cycle Cost Analysis Tool (E-L-T) allows users to assess the optimum time to replace their trucks and motor graders considering both purchasing and leasing options.
“We know that counties spend about half their budgets on maintenance, and equipment is about 27 percent of maintenance at any given time,” said Jennifer Shane, a principal investigator on the project that developed the tool. “We wanted to develop something county engineers can tailor to their needs and use to present to their boards on their equipment needs.” More

CP Tech Center releases Guide to Lightweight Cellular Concrete for Geotechnical Applications

Photo: LCC placed as lightweight base/subbase material
Long used as a construction product for flooring systems, lightweight cellular concrete (LCC)— a mixture of portland cement and water slurry, combined with preformed foam to create air voids—has continued to expand its applications into a variety of fields, including the geotechnical industry.
In order to provide information for construction professionals and design engineers on the use of LCC in specifically geotechnical applications, the National Concrete Pavement Technology Center (CP Tech Center) in collaboration with the Portland Cement Association (PCA) released the Guide to Lightweight Cellular Concrete for Geotechnical Applications. More

News Briefs

PROSPER’s Ceylan recognized as University of Illinois Distinguished Alumni See Story
Alipour, Ashlock recognized for ‘exceptional effort’ in pandemic See Story
Schaefer receives ASCE award for innovation See Story
InTrans graduate student receives TRB exceptional paper award See Story

Recent InTrans Research

2021

Demonstration and Inter-Comparison of Seasonal Weight Restriction Models, Phase II Mar 2021 
NCHRP 18-17 Entrained Air-Void Systems for Durable Highway Concrete Jan 2021 


December 2020

Holding Strategies for Low-Volume State Routes Dec 2020
Improving the Foundation Layers for Concrete Pavements Dec 2020 
Rapid Bridge Deck Joint Repair Investigation – Phase III Dec 2020 
Use of J Band to Improve the Performance of the HMA Longitudinal Joint Dec 2020 
Developing a Research-Grade Iowa Work Zone Database Dec 2020 
Automating Wrong Way Detection Using Existing CCTV Cameras Dec 2020 


October/November 2020

Holding Strategies for Low Volume State Routes – Phase II Nov 2020 
Disadvantaged Business Enterprises Supportive Services Nov 2020 
Assessing and Enhancing the Transportation Resilience for the State of Iowa Oct 2020 
Development of a Novel Aerodynamic Solution to Mitigate Large Vibrations in Traffic Signal Structures Oct 2020
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Institute for Transportation / 2711 S Loop Drive / Suite 4700 / Ames, IA 50010
From traffic safety to big data and from preservation to education, InTrans focuses on research and service that impact transportation now and into the future.

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