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Guidance for Incorporating Work Zone Data within Traffic Management Operations
https://www.intrans.iastate.edu/wp-content/uploads/2024/12/incorporating_WZ_data_within_traffic_management_operations_w_cvr.pdf?highlight=work%20zone

…activated before the work zone start time. Both the unverified and verified work zones had a majority of activations after the work zone start time. The unverified work zones had the most activation events within 60 minutes of the reported start time of the work zone. The verified work zones…

Understanding the Impacts of Work Zone Activities on Traffic Flow Characteristics
https://www.intrans.iastate.edu/wp-content/uploads/2018/08/work_zone_activity_traffic_flow_impacts_w_cvr.pdf?highlight=work%20zone

…non-work zone day speed-flow plots for Eastbound I-270 from McDonnell Boulevard to Route 36 (bridge work, 4,2)………………54 Figure 5.3.8. Comparison of work zone versus non-work zone day speed-flow plots for Westbound I-270 from I-170 to 367 (pavement work, 3,2) ………………………………………..55 Figure 5.3.9. Comparison of work zone versus non-work zone day…

Evaluation of Work Zone Safety Using the SHRP2 Naturalistic Driving Study Data – Volume 2 Description of Research
https://www.intrans.iastate.edu/wp-content/uploads/2021/11/SHRP2_NDS_data_WZ_safety_eval__Vol_2_Research_Nov_7_2021.docx?highlight=work%20zone

…of the work zone conditions and reacted accordingly. For instance, drivers may have slowed before particular work zone features because they were anticipating changing conditions in the work zone rather than reacting to particular work zone features. • Work zones are complicated entities. Even with a sample of several hundred…

Evaluation of Work Zone Speed Limits: An Object and Subjective Analysis of Work Zones in Missouri
https://www.intrans.iastate.edu/wp-content/uploads/2018/08/MO_WZSpeedLimit_FinalReport_Feb2011.pdf?highlight=work%20zone

work zones. (c) Establish work zone speed limits on the basis of factors specific to individual projects. Evaluation of Work Zone Speed Limits: An Objective and Subjective Analysis of Work Zones in Missouri 5 NCHRP Project 3-41 makes the following recommendations regarding work zone speed limit implementation (Migletz et al.,…

Improving the Effectiveness of Zipper Merge Lane Control in Freeway Work Zones
https://www.intrans.iastate.edu/wp-content/uploads/2025/01/improving_effectiveness_zipper_merge_w_cvr.pdf?highlight=work%20zone

Improving the Effectiveness of Zipper Merge Lane Control in Freeway Work Zones Final Report December 2024 Sponsored by Smart Work Zone Deployment Initiative (Part of TPF-5(438)) Federal Highway Administration (Part of InTrans Project 20-733) About the Smart Work Zone Deployment Initiative The Smart Work Zone Deployment Initiative (SWZDI) is a…

Work Zone Data Management Applications and Opportunities
https://www.intrans.iastate.edu/wp-content/uploads/2021/03/wz_data_mgmt_apps_and_opps_w_cvr.pdf?highlight=work%20zone

…ability to distinguish work zones involving mobile work operations, such as pavement striping and pothole patching, from work zones involving stationary work. A total of 45% of respondents indicated that information distinguishing mobile from stationary work is available for none or only some of the work zones, while 27% said…

Analytical Methods for Work Zone Travel Time Reliability
https://www.intrans.iastate.edu/wp-content/uploads/2018/08/analytical_methods_for_work_zone_travel_times_w_cvr.pdf?highlight=work%20zone

…main objective of this study is to provide a framework for developing analytical methods for estimating work zone travel time reliability, considering various factors such as traffic volume, work zone configuration, and work zone intensity. The framework covers aspects of work zone selection for the model, evaluating each work zone

Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones
https://www.intrans.iastate.edu/wp-content/uploads/2018/08/BaiGraphicAidedDMSFinal-Report.pdf?highlight=work%20zone

…more severe than non-work zone crashes; 4. Rear-end crash was the most frequent crash type in work zone crashes. Same- direction sideswipe, angle collision and head-on collision were also frequently found in work zone crashes. Truck-involved crashes were more frequent and severe in work zones; 5. Most work zone crashes…

Extension of Safety Assessment Tool for Construction Work Zone Phasing Plans
https://www.intrans.iastate.edu/wp-content/uploads/2018/12/extended_safety_assess_tool_for_WZ_phasing_w_cvr.pdf?highlight=work%20zone

…two-lane work zone required variables ……………………………………………………..38 Figure 7.7. Urban multi-lane highway work zone required variables …………………………………….39 Figure 7.8. Arterial work zone required variables ……………………………………………………………….39 Figure 7.9. Ramp work zone required variables ………………………………………………………………….40 Figure 7.10. Work zones on signalized intersection (4-leg) required variables ……………………….40 Figure 7.11. Work zones on unsignalized intersection…

Traffic Management Strategies for Merge Areas in Rural Interstate Work Zones
https://www.intrans.iastate.edu/wp-content/uploads/2018/03/traffic6.pdf?highlight=work%20zone

Zones 24 There have been a number of attempts to develop systems which improve safety or the capacity of work zone lane mergers. Safety-related devices generally attempt to slow drivers approaching work zones through a number of strategies or protect the workers in the work zone through alarms, remote controlled…

Traffic Control Strategies in Work Zones with Edge Drop-Offs
https://www.intrans.iastate.edu/wp-content/uploads/2018/03/dropoff.pdf?highlight=work%20zone

…with the safety issues of lane and pavement edge differentials as well as that related to temporary traffic control practices in work zones. The materials reviewed for general practices include research on work zone safety records, methods to warn road users of potential hazards, and driver behavior in work zones….

Calibration of Highway Safety Manual Work Zone Crash Modification Factors
https://www.intrans.iastate.edu/wp-content/uploads/2018/08/2014_HSM_work-zone_CMFs_w_cvr.pdf?highlight=work%20zone

…of effort required for performing work zone safety studies, because different data sources need to be cleaned and then fused together. Three types of data are required: work zone characteristics such as length, duration, location, and type; work zone traffic characteristics; and work zone crash characteristics. Thus the work zone

Traffic Impact Assessment of Moving Work Zone Operations
https://www.intrans.iastate.edu/wp-content/uploads/2018/03/moving_work_zone_traffic_impact_assess_w_cvr.pdf?highlight=work%20zone

…https://connect.ncdot.gov/projects/WZTC/Documents/Cover_Chapter_1.pdf. PTV Group. 2013. PTV Vissim 7 User Manual. Ullman, G. and V. Iragavarapu. 2014. Analysis of Expected Crash Reduction Benefits and Costs of Truck-Mounted Attenuator Use in Work Zones. Transportation Research Record: Journal of the Transportation Research Board. No. 2458, pp. 74–77. http://www.michigan.gov/documents/zonecontrol_112912_7.pdf http://epg.modot.org/index.php?title=616.8_Typical_Applications_%28MUTCD_6H%29 http://epg.modot.org/index.php?title=616.8_Typical_Applications_%28MUTCD_6H%29 https://www.dot.ny.gov/divisions/operating/oom/transportation-systems/safety-program-technical-operations/work-zone-control/repository/Work%20Zone%20Traffic%20Control%20Manual.pdf https://www.dot.ny.gov/divisions/operating/oom/transportation-systems/safety-program-technical-operations/work-zone-control/repository/Work%20Zone%20Traffic%20Control%20Manual.pdf https://www.dot.ny.gov/divisions/operating/oom/transportation-systems/safety-program-technical-operations/work-zone-control/repository/Work%20Zone%20Traffic%20Control%20Manual.pdf https://connect.ncdot.gov/projects/WZTC/Documents/Cover_Chapter_1.pdf…

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