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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...
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 Michael Hyland, assistant professor at the University of California-Irvine. Hyland's presentation is entitled “Operation, Design, and Transport System Impacts of Shared-Use Automated Vehicle Mobility Services.” He will present from 11 a.m. to noon on Friday, March 15. Hyland will...
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...
Assessing the Impact of Game Day Schedule and Opponents on Travel Patterns and Route Choice using Big Data Analytics
https://ctre.iastate.edu/research/in-progress/assessing-the-impact-of-game-day-schedule-and-opponents-on-travel-patterns-and-route-choice-using-big-data-analytics/
Memorial Stadium at the University of Nebraska–Lincoln is the home of the Nebraska Cornhuskers football team. It is commonly referred as the “third-largest city” in Nebraska on game days. The stadium holds the National Collegiate Athletic Association (NCAA) record of consecutive sellouts for every game since 1962, a streak of more...
Iowa Signal Phasing and Timing (SPaT) and MAP Demonstration Project: Phase I
https://ctre.iastate.edu/research/in-progress/iowa-signal-phasing-and-timing-spat-and-map-demonstration-project-phase-i/
Connected vehicles have the potential to change transportation in the near future. According to some estimates, use of vehicle-to-infrastructure (V2I) information to prioritize signal timing will reduce the overall delay (up to 27%) and can potentially cut down the CO2 emissions by 11%. Intersection-focused safety applications are expected to prevent an...
Automated Traffic Signal Performance (TSP) Measures Pilot Implementation
https://ctre.iastate.edu/research/in-progress/automated-traffic-signal-performance-tsp-measures-pilot-implementation/
Until recently, most traffic signal systems lacked effective mechanisms for reporting their performance to a management system to identify actionable items or to evaluate the impact of actions undertaken by responsible personnel. Some efforts to implement operational feedback were made by individual vendors or resulted from research projects, but these did...
Data Standards for Connected Autonomous Vehicles
https://ctre.iastate.edu/research/in-progress/data-standards-for-connected-autonomous-vehicles/
The transportation industry is evolving, and the deployment of vehicle-to-everything (V2X) communications has the potential to serve as a massive test-bed for the internet of things. Vehicles will be communicating with other vehicles, infrastructures, non-motorized vehicles, and possibly other commercial service providers. The infrastructure will be communicating also to enable seamless...
2019 Mid-Continent Transportation Research Symposium
https://ctre.iastate.edu/events/midcon2019/
Tentative Program Hosts Hosted by the Iowa Department of Transportation and Iowa State University's Institute for Transportation         ...
The Interrelationships between Speed Limits, Geometry, and Driver Behavior
https://ctre.iastate.edu/research/completed/speed-limits-geometry-and-driver-behavior/
The relationship between speed and safety continues to be a high-priority research topic as numerous states consider speed limit increases. This study leveraged data from the Second Strategic Highway Research Program (SHRP2) Naturalistic Driving Study (NDS) to examine various aspects of driver behavior, including speed limit selection and engagement with in-vehicle...
REACTOR Lab tool aids in Traffic Incident Management response
https://ctre.iastate.edu/news/reactor-lab-tool-aids-in-traffic-incident-management-response/
Whenever there’s a slowdown on Iowa’s roadways, every second counts to prevent crashes or secondary crashes. That’s why the Iowa Department of Transportation (DOT) has invested in putting together traffic incident management (TIM) plans to provide coordinated, safe, efficient, and timely management of highway incidents. Those plans mean that at high...
ISU president makes stop at InTrans
https://ctre.iastate.edu/news/isu-president-makes-stop-at-intrans/
Iowa State University President Wendy Wintersteen made a recent stop at the Institute for Transportation (InTrans) to learn more about its research and its partnerships. Wintersteen, who was named ISU’s 16th president a year ago, received a short tour of InTrans facilities, before InTrans Director Shauna Hallmark offered more details during...
InTrans’ Knickerbocker wins Young Transportation Professional Award
https://ctre.iastate.edu/news/intrans-knickerbocker-wins-young-transportation-professional-award/
The Intelligent Work Zone program developed at the Institute for Transportation (InTrans) has already proven to be a valuable tool for the Iowa Department of Transportation. Now, it’s also helped InTrans Research Engineer Skylar Knickerbocker earn the Young Transportation Professional of the Year Award from the Institute of Transportation Engineers Missouri...
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