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Work Zone Driveway Assistance Devices (DADs):  Past Research & Evaluation of Display Strategies
https://intrans.iastate.edu/events/wz-driveway-assistance-devices/

Description The Driveway Assistance Device (DAD) is an experimental device used to direct traffic onto a bi-directional, single-lane work zone from a driveway or side street. This device uses alternating flashing arrows to indicate the traffic flow direction along the work zone segment in order to reduce wrong-way driving. Although…

2021 Work Zone and Flagger Workshop Series
https://intrans.iastate.edu/events/2021-work-zone-and-flagger-workshop-series/

Description For 2021, we will be offering this workshop at selected locations across the state. There will be 4 sessions offered at each location over a 2 day period. This workshop is the classic low-cost presentation of basic flagging principles and work zone safety. This workshop will Teach basic principles…

Introduction to Work Zone Crash Modification Factors (Webinar)
https://intrans.iastate.edu/events/work-zone-cmf-webinar/

…include the following: An introduction to work zone crash modification factors (CMFs) An overview of DOT practices in work zone safety Sources and values for work zone CMFs Example applications of work zone CMFs in work zone safety analyses Speaker Bio Henry Brown is a research engineer in the Civil…

Validation of Adjustment Factors for Freeway Work Zone Capacity Calculations (Webinar)
https://intrans.iastate.edu/events/work-zone-capacity-webinar/

…Deployment Initiative states. The researchers collected work zone activity data and the corresponding traffic data from 16 work zone sites across Iowa during the 2018 and 2019 construction seasons. The data included flow rate, speed, and work zone active times and configurations to estimate work zone capacity, discharge flow rate,…

Evaluation of Messaging Techniques to Increase Vehicle Spacing at Work Zones
https://intrans.iastate.edu/research/in-progress/evaluation-of-messaging-techniques-to-increase-vehicle-spacing-at-work-zones/

Following too closely (tailgating) is a persistent problem throughout the roadway system, and its consequences can be particularly severe in work zones. In fact, rear-end collisions are the most common type of crash in work zones. Maintaining sufficient car-following gaps allows drivers enough time to react to unexpected and complex…

Effectiveness of Extra Enforcement in Construction and Maintenance Work Zones—Midwest States Smart Work Zone Deployment Initiative: Year 4
https://intrans.iastate.edu/research/completed/effectiveness-of-extra-enforcement-in-construction-and-maintenance-work-zones-midwest-states-smart-work-zone-deployment-initiative-year-4/

…quantified. In addition, procedures for the use of law officers in work zones are quite inconsistent across the nation, as is the general implementation of specific legislation addressing work zone traffic violations. Similar variation can be found in funding levels and sources for enforcement activities in work zones among the…

Guidance on Active Work Zone Data Archival
https://intrans.iastate.edu/research/completed/guidance-on-active-work-zone-data-archival/

Highway work zones often have major safety and mobility impacts, which are made worse when travelers are unaware that they are approaching a work zone. To monitor and mitigate the mobility and safety impacts of road construction, transportation agencies, first responders, and the public require accurate information about the location,…

Improving Work Zone Safety: Temporary Rumbles Strips, Smart Arrow Boards, and Other Connected Traffic Control Device Technologies (Webinar)
https://intrans.iastate.edu/events/improving-work-zone-safety/

…smart arrow boards on selected roadways in 2021, which required a multi-year process to understand how to communicate and work with these new types of devices. This session will focus on using connected field devices to generate accurate real-time work zone information including position of road/lane closures. This includes discussing…

Evaluation of Work Zone Speed Limits: An Object and Subjective Analysis of Work Zones in Missouri
https://intrans.iastate.edu/research/completed/evaluation-of-work-zone-speed-limits-an-object-and-subjective-analysis-of-work-zones-in-missouri/

…through the work zone. When a work zone was mostly congested, 92% of car drivers and all of the truck drivers suggested a reduction in speed limits. Conversely, 92% of car drivers and 73% of truck drivers suggested a higher posted speed limit when the work zone was not congested….

Fluorescent Yellow-green Backing/border for Work Zone Signs–Midwest States Smart Work Zone Deployment Initiative Year 3:
https://intrans.iastate.edu/research/completed/fluorescent-yellow-green-backing-border-for-work-zone-signs-midwest-states-smart-work-zone-deployment-initiative-year-3/

Moving work zones have fewer traffic control devices than stationary work zones and provide no buffer space for vehicles that encroach on a work zone. To improve the safety of moving operations, the Iowa Department of Transportation (Iowa DOT) created a six-inch fluorescent yellow-green (FYG) background for the work zone

2021 Iowa Work Zone Safety Workshops – Virtual
https://intrans.iastate.edu/events/2021-iowa-work-zone-safety-workshops-virtual/

…their supervisors) whose duties place them on or near the traveled portion of roadways regularly complete work zone traffic control training. The Iowa Work Zone Safety Workshops provide this valuable training. It is not necessary to attend a work zone safety workshop every year; every three years is recommended. Within…

2021 Work Zone and Flagger Workshop – Ames – May 13 – Afternoon
https://intrans.iastate.edu/events/2021-work-zone-and-flagger-workshop-ames-may-13-afternoon/

…you believe need this training are unable to meet these requirements Thanks for bearing with us as we work through this transition. 2021-05-13 12:30:00 Workshop begins at 12:30 pm Ames ISU Economic Development Core Facility 1805 Collaboration Pl. Ames, IA 50010 3 38 20 person max per session and registration…

2021 Work Zone and Flagger Workshop – Atlantic
https://intrans.iastate.edu/events/2021-work-zone-and-flagger-workshop-atlantic/

…you believe need this training are unable to meet these requirements Thanks for bearing with us as we work through this transition. 2021-05-05 12:30:00 2021-05-06 00:00:00 Workshop sessions begin at 8:30 am and 12:30 pm. Please allow approximately 2.5 hours per session. Atlantic Cass County Community Center 805 W 10th…

2021 Work Zone and Flagger Workshop – Sigourney – April 28 – Morning
https://intrans.iastate.edu/events/2021-work-zone-and-flagger-workshop-sigourney-april-28-morning/

…you believe need this training are unable to meet these requirements Thanks for bearing with us as we work through this transition. 2021-04-28 08:30:00 Workshop begins at 8:30 am Sigourney Keokuk County Extension Office 400 220th Avenue Sigourney, Iowa 52591 17 38 20 person max per session and registration is…

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