Driver Understanding and Secondary Task Performance While Viewing Traffic Safety Messages on Dynamic Message Signs
Ullman, Gerald L., Higgins, Laura L., Chrysler, Susan T., Geiselbrecht, Tina S., Simek, Chris L., Stoeltje, Gretchen, Wolfe, Dave, Benson, Gabby
Published in Transportation research record (01.09.2023)
Published in Transportation research record (01.09.2023)
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Journal Article
Evaluation of Cost-Effectiveness of Steady-Burn Warning Lights in Work Zones
Theiss, LuAnn, Pratt, Michael P., Ullman, Gerald L., Maxwell, Stefanie D.
Published in Transportation research record (01.01.2014)
Published in Transportation research record (01.01.2014)
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Journal Article
How safe are safety messages?
Ullman, Gerald, Chrysler, Susan
Published in Science (American Association for the Advancement of Science) (22.04.2022)
Published in Science (American Association for the Advancement of Science) (22.04.2022)
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Journal Article
Photometric Evaluation of Steady-Burn Warning Lights in Work Zones
Theiss, LuAnn, Miles, Jeffrey D., Ullman, Gerald L., Maxwell, Stefanie D.
Published in Transportation research record (01.01.2014)
Published in Transportation research record (01.01.2014)
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Journal Article
Categorization of Work Zone Intrusion Crashes
Ullman, Gerald L., Finley, Melisa D., Theiss, LuAnn
Published in Transportation research record (01.01.2011)
Published in Transportation research record (01.01.2011)
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Journal Article
Merging Taper Lengths for Lane Closures of Short Duration
Theiss, LuAnn, Finley, Melisa D., Ullman, Gerald L.
Published in Transportation research record (01.01.2011)
Published in Transportation research record (01.01.2011)
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Journal Article
Flashing Message Features on Changeable Message Signs
Dudek, Conrad, Schrock, Steven, Ullman, Gerald, Chrysler, Susan
Published in Transportation research record (01.01.2006)
Published in Transportation research record (01.01.2006)
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Journal Article
Improved Temporary Traffic Control Guidance for Mobile Operations on Two-Lane Roadways
Theiss, LuAnn, Ullman, Gerald L., Jackels, Jon
Published in Transportation research record (28.03.2024)
Published in Transportation research record (28.03.2024)
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Journal Article
Improved Practices for Temporary Work Zone Guide Signs
Theiss, LuAnn, Higgins, Laura, Ullman, Gerald L.
Published in Transportation research record (01.01.2023)
Published in Transportation research record (01.01.2023)
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Journal Article
Matrix-Based Decision Support Tools for Construction Activities on High-Volume Roadways
Carson, Jodi L., Anderson, Stuart D., Ullman, Gerald L.
Published in Transportation research record (01.01.2008)
Published in Transportation research record (01.01.2008)
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Journal Article
Legibility Distances of Smaller Letters in Changeable Message Signs with Light-Emitting Diodes
Ullman, Brooke, Ullman, Gerald, Dudek, Conrad, Ramirez, Elizabeth
Published in Transportation research record (01.01.2005)
Published in Transportation research record (01.01.2005)
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Journal Article