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Rural Speed Management References
https://ctre.iastate.edu/research-synthesis/rural-speed-management/references/
Andrle, Stephen J., Keith K. Knapp, Tom McDonald, and Duane E. Smith. Iowa Traffic Control Devices and Pavement Markings: A Manual for Cities and Counties. Center for Transportation Research and Education, Iowa State University, 2001. ATSSA. Low Cost Local Road Safety Solutions. American Traffic Safety Services Association, Fredericksburg, VA, 2006. Brewer,...
General Iowa Resources for Rural Speed Management
https://ctre.iastate.edu/research-synthesis/rural-speed-management/general-resources/
Speed Management Toolbox for Rural Communities (PDF) Summarizes various known traffic-calming treatments and their effectiveness. Focuses on roadway-based treatments for speed management, particularly for rural communities with transition zones. Education, enforcement, and policy strategies should also be considered, but are not the focus of this toolbox. Evaluation of Gateway and Low-Cost...
Traffic Control Signage: Dynamic Speed Display and Vehicle Actuated
https://ctre.iastate.edu/research-synthesis/rural-speed-management/traffic-control-signage/dynamic-displays/
Dynamic speed signs and displays alert drivers that they are speeding and create a sense of being monitored. Dynamic speed signs and displays are usually radar-activated signs that display approaching speeds dynamically for individual vehicles and/or display messages, such as YOUR SPEED, SLOW DOWN, or REDUCE SPEED, particularly when an approaching...
Pavement Markings: Transverse Lane Markings
https://ctre.iastate.edu/research-synthesis/rural-speed-management/pavement-markings/transverse-lane-markings/
Transverse pavement markings usually consist of transverse bars or chevrons that are typically spaced to give drivers the perception that they are speeding up. Transverse pavement markings usually consist of transverse bars or chevrons that are typically spaced to give drivers the perception that they are speeding up. This perception encourages...
Surroundings: Community Gateways
https://ctre.iastate.edu/research-synthesis/rural-speed-management/surroundings/
Community gateways are landscaped sign installations that announce to motorists that they are entering a community. Community gateways are simply landscaped sign installations that announce to motorists that they are entering a community. Gateway signs provide an indication to motorists that they are leaving a rural area and entering a city...
Narrowing: Landscaping
https://ctre.iastate.edu/research-synthesis/rural-speed-management/narrowing/landscaping/
Landscaping impacts motorists' behavior by narrowing the optical width of the road and communicating a change in the character of the roadway from rural to urban. Landscaping is often used in conjunction with other traffic-calming treatments and is considered to impact motorists' behavior in two ways: By planting alongside the road....
Narrowing: Four- to Three-Lane Conversion
https://ctre.iastate.edu/research-synthesis/rural-speed-management/narrowing/conversion/
A four- to three-lane conversion can narrow the roadway either physically or visually and may result in reduced speeds. A four- to three-lane conversion is used to reduce an existing four-lane roadway to a 2+1 facility, in which the third lane acts as an alternating passing lane or continuous left-turn lane....
Narrowing: Center Islands
https://ctre.iastate.edu/research-synthesis/rural-speed-management/narrowing/islands/
Center islands usually narrow the travel lane at the roadway centerline and separate opposing traffic movements. Center islands are usually raised islands, also called medians, within the roadway centerline. Center islands usually narrow the travel lane at the roadway centerline and separate opposing traffic movements. When landscaped, center islands can improve...
Narrowing
https://ctre.iastate.edu/research-synthesis/rural-speed-management/narrowing/
Lane narrowing reduces the width of the travel portion of a lane and gives drivers a feeling of constraint that can influence them to reduce their speed. Treatment Options Lane narrowing reduces the width of the travel portion of a lane. Narrowed lanes provide a feeling of constraint that can influence...
Vertical Displacement
https://ctre.iastate.edu/research-synthesis/rural-speed-management/vertical-displacement/
Vertical treatments are aimed at drivers slowing down to avoid the discomfort created from the treatment. Treatment Options Vertical physical displacement is different from horizontal displacement due to the uncomfortable feeling that drivers get when traversing these treatments. While horizontal treatments are aimed at requiring drivers to lower their speeds to...
REACTOR Lab conducts evaluation of open data portals and their transportation data
https://ctre.iastate.edu/news/reactor-lab-conducts-evaluation-of-open-data-portals-and-their-transportation-data/
Improvements in technology and government initiatives toward open data policies are motivating transportation agencies to publish their data openly. Open data are data that can be used and reused freely, often with attribution, and are commonly defined by three key features: availability, redistribution, and universal participation. The US government moved to...
Roy Sturgill
https://ctre.iastate.edu/people/roy-sturgill/
Dr. Roy Sturgill is an accomplished researcher and has served as principal investigator or co-investigator on over a dozen research projects totaling over $1,500,000 (inclusive of both state and national funding). Before coming to ISU, he worked as a research engineer at the Kentucky Transportation Center at the University of Kentucky...
Determining the Impact of Connected and Automated Vehicle Technology on State DOT Maintenance Programs
https://ctre.iastate.edu/research/in-progress/determining-the-impact-of-connected-and-automated-vehicle-technology-on-state-dot-maintenance-programs/
Connected and autonomous vehicle (CAV) technologies hold the potential to produce a number of safety, mobility, and environmental benefits for the users and operators of the nation’s surface transportation system. The benefits of connected vehicle technologies are expected to be wideranging and apply not only to roadway users but also transportation...
Use of Innovative Technology to Deter Bat Bridge Use Prior to and During Construction
https://ctre.iastate.edu/research/in-progress/use-of-innovative-technology-to-deter-bat-bridge-use-prior-to-and-during-construction/
White-Nose Syndrome (WNS) is estimated to have killed more than 5.7 million bats in eastern North America since it was identified in New York in 2006. Due to WNS and increased disturbance of habitats used by bats for roosting and foraging, there has been a growing concern about the bat population...
Tom Maze seminars conclude with pavement expert
https://ctre.iastate.edu/news/tom-maze-seminars-conclude-with-pavement-expert/
Imad Al-Qadi, Bliss Professor of Engineering at the University of Illinois at Urbana-Champaign, helped InTrans close out the semester of Tom Maze Transportation Seminars with a stimulating talk on the future of pavement engineering. Al-Qadi, who is also the director of the Illinois Center for Transportation, the Advanced Transportation Research and...
Transportation research investigates flooding impacts
https://ctre.iastate.edu/news/transportation-research-investigates-flooding-impacts/
January and February 2019 brought unprecedented amounts of snowfall in the Midwestern states including Nebraska, Iowa, South Dakota, Wisconsin, and Minnesota. Before the snow could melt and the ground could thaw, heavy rainfall fell primarily in northwest Iowa and northeastern Nebraska causing major runoff from both the rainfall and snowmelt. The...
New technology developed at Iowa State may boost use of recycled materials in asphalt
https://ctre.iastate.edu/news/new-technology-developed-at-iowa-state-may-boost-use-of-recycled-materials-in-asphalt/
A new technology developed by Iowa State University (ISU) engineers that has the potential to significantly boost the use of recycled materials in asphalt is earning international attention for its promising future impact to the transportation industry. Chris Williams, director of the Asphalt Materials and Pavements Program and ISU civil engineering...
Tom Maze seminars continue Friday
https://ctre.iastate.edu/news/tom-maze-seminars-continue-friday/
The Tom Maze Transportation Seminars will continue Friday with a presentation from Imad Al-Qadi, Bliss Professor of Engineering at the University of Illinois at Urbana-Champaign; Illinois Center for Transportation, Director; Advanced Transportation Research and Engineering Laboratory, Director; and Smart Transportation Infrastructure Initiative, Director. Al-Qadi's presentation is entitled “The Future of Pavement...
REACTOR Lab research focuses on work zone safety
https://ctre.iastate.edu/news/reactor-lab-research-focuses-on-work-zone-safety/
Road Work Ahead. We’re all familiar with the orange warning signs that appear on Iowa roads each spring and the frustration road construction can bring to commuters. Part of that frustration can come from motorists not knowing what is being done or why the project is needed. But imagine the stress...
Improved Work Zone Data Feed
https://ctre.iastate.edu/research/in-progress/improved-work-zone-data-feed/
The Institute for Transportation (InTrans) team will support the Iowa DOT Operations Bureau specific to Cooperative Automated Transportation (CAT) research, applications, data analytics, demonstrations, and discovery, which includes the following: Organizing and Guiding Work Zone Technology: InTrans will serve an overarching role to support the Iowa DOT in terms of organizing...
PROSPER works with Iowa DOT to scale up heated pavement tests
https://ctre.iastate.edu/news/prosper-works-with-iowa-dot-to-scale-up-heated-pavement-tests/
Engineers with InTrans' PROSPER are working with the Iowa Department of Transportation (DOT) to test heated-pavement technology developed on campus. The test slabs at the Iowa DOT are smarter and more complex than the research group's previous tests at the Des Moines International Airport. And so far, preliminary tests indicate the...
InTrans’ Sharma appointed Pitt-Des Moines Inc. Professor in Civil Engineering
https://ctre.iastate.edu/news/intrans-sharma-appointed-pitt-des-moines-inc-professor-in-civil-engineering/
Iowa State University’s Department of Civil, Construction and Environmental Engineering (ISU CCEE) has named Anuj Sharma the Pitt-Des Moines Inc. (PDM) Professor in Civil Engineering. Sharma is a research scientist with the Institute for Transportation and holds a joint appointment as an associate professor of transportation engineering. In these positions, he...
On-Board Prediction of Remaining Useful Life of Lithium-Ion Battery
https://ctre.iastate.edu/research/completed/useful-life-of-lithium-ion-batteries/
This project was intended to create an intelligent prognostics platform for lithium-ion (Li-ion) batteries, which would equip existing battery management systems with the capability to perform predictive maintenance/control for failure prevention. The platform developed in this project consisted of two modules: Deep feature learning, which automatically learns the features of (capacity)...
InTrans engineers use big data tools to assist Iowa DOT, improve highway safety
https://ctre.iastate.edu/news/intrans-engineers-use-big-data-tools-to-assist-iowa-dot-improve-highway-safety/
Researchers with Iowa State's Institute for Transportation (InTrans) are using artificial intelligence and machine learning tools to manage, sort and analyze the traffic data collected by the Iowa Department of Transportation. The idea is for researchers to use the latest computing tools to mine the huge data sets for useful information...
Tom Maze seminars begin anew in spring semester
https://ctre.iastate.edu/news/tom-maze-seminars-begin-anew-in-spring-semester/
The Tom Maze Transportation Seminars will kick off this spring semester with a presentation from In Ho Cho, Assistant Professor at Iowa State University's Civil Engineering Department. Cho’s presentation is entitled “Novel Methods for Advanced Data-Driven Infrastructure Engineering.” He will present from 11 a.m. to noon on Friday, Jan. 25. The...
ICMPA 2020 – 11th International Conference on Managing Pavement Assets
https://ctre.iastate.edu/events/icmpa2020/
SPONSORED BY CONFERENCE THEME Pavement Management: Paving the Way to Asset Management The conference sessions will be organized around the following sub-themes. PAVEMENT MANAGEMENT: Improving Quality Making it Work What’s New? Airport Pavement Management A Life Cycle Approach The Road to Innovation Sustainability and Reliability Distress Data Collection Local Agency Pavement...
REACTOR Lab to have presence at TRB Annual Meeting
https://ctre.iastate.edu/news/reactor-lab-to-have-presence-at-trb-annual-meeting/
The work that the REACTOR Lab has focused on during the year will be a presence at this year’s Transportation Research Board (TRB) Annual Meeting. Seven workshops, poster sessions, and lecture sessions will give REACTOR Lab staff and students the chance to spotlight their work. In total, InTrans staff and students...
REACTOR Lab students finalists in TRB competition
https://ctre.iastate.edu/news/reactor-lab-students-finalists-in-trb-competition/
A team made up of REACTOR Lab graduate students was one of five finalists in a transportation forecasting competition led by the Transportation Research Board (TRB). The team consisted of Archana Venkatachalapathy, Pranamesh Chakraborty, Subhadipto Poddar, and Tongge Huang, who work at InTrans’ REACTOR Lab under the guidance of Dr. Anuj...
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