Publications TitleReport NumberAuthor(s)DateUnderstanding Dallas District Pedestrian Safety IssuesTTI-2019-4M.Q. Le, S.R. Geedipally, K.M. Fitzpatrick, N.A. Johnson, R.E. AvelarOctober 2019Traffic Control Device Evaluation Program: Simulator Evaluation of Sponsored Changeable Message Signs and In-Situ Evaluation of Rumble Strip Alternatives9-1001-14-2A.M. Pike, L.L. Higgins, M. Ko, J.D. Miles, A.A. Nelson, P.J. Carlson, S.T. Chrysler, E. ParkJuly 2016Traffic Control Device Evaluation Program: Technical Report9-1001-14-1P.J. Carlson, L.L. Higgins, M.P. Pratt, M.D. Finley, L. Theiss, W.F. Williams, V. Iragavarapu, M. Ko, A.A. NelsonMarch 2015Traffic Control Device Evaluation Program: Technical Report9-1001-4P.J. Carlson, M.P. Pratt, L.L. Higgins, A.A. NelsonJanuary 2014Graphical Route Information Panel Signs for Southbound I-35 and SH 130 Travel through Austin409175-6G.L. Ullman, R.E. Brydia, A.A. Nelson, L.L. Higgins, R.T. Baker, T.S. GeiselbrechtMarch 2014Understanding the Decision-making Process for Drivers Faced with Lane Restrictions or Closures on Wisconsin Highways0092-11-15L.L. Higgins, A.A. Nelson, T.S. Geiselbrecht, B.R. UllmanFebruary 2013Guidance for Effective Use of Pylons for Lane Separation on Preferential Lanes and Freeway Ramps0-6643-1S.P. Kuchangi, R.J. Benz, A.A. Nelson, A.P. Voigt, R. Stevens, J.P. Wikander, L. TheissMay 2013Understanding and Addressing Distracted Driving in TexasTTI-2013-27K.N. WomackOctober 2013Guidelines for the Effective Use of Flexible Pylons for Congestion Mitigation, Access Management, and Safety Improvement0-6643-SR.J. Benz, s. Kuchangi, A.A. Nelson, L. Theiss2012Studies to Determine the Effectiveness of Longitudinal Channelizing Devices in Work Zones0-6103-1M.D. Finley, L. Theiss, N.D. Trout, J.D. Miles, A.A. NelsonJanuary 2011Lane Assignment Traffic Control Devices on Frontage Roads and Conventional Roads at Interchanges: Technical Report0-6106-1A.A. Nelson, J.M. Tydlacka, R. Stevens, S.T. Chrysler, A.P. VoigtNovember 2011Lane Assignment Traffic Control Devices on Frontage Roads and Conventional Roads at Interchanges0-6106-SA.P. Voigt, A.A. Nelson, J.M. Tydlacka, R. Stevens, S.T. Chrysler2011Driver Workload and Visual Studies0-5911-SK. Fitzpatrick, S.T. Chrysler, E. Park, A.A. Nelson, J.A. Robertson, V. IragavarapuFebruary 2010Driver Workload at Higher Speeds0-5911-1K. Fitzpatrick, S.T. Chrysler, E. Park, A.A. Nelson, J.A. Robertson, V. IragavarapuFebruary 2010Improving Accuracy in Household and External Travel Surveys0-5711-1D.F. Pearson, E.N. Hard, S.P. Farnsworth, T.L. Forrest, D.L. Spillane, M.I. Ojah, K.N. Womack, S.A. Boxill, C.A. LewisJanuary 2010Guidelines for the Use of Pavement Marking Symbols at Freeway Interchanges: Final Report0-5890-1B.R. Ullman, M.D. Finley, S.T. Chrysler, N.D. Trout, A.A. Nelson, S. YoungMarch 2010Guidelines and Recommendations for Household and External Travel Surveys0-5711-P1D.F. Pearson, E.N. Hard, S.P. Farnsworth, T.L. Forrest, D.L. Spillane, M.I. Ojah, K.N. Womack, S.A. Boxill, C.A. LewisMarch 2010Automated Generation of Virtual Scenarios in Driving Simulator from Highway Design DataSWUTC/10/476660-00018-1X. Zhao, A.A. Nelson, S.T. Chrysler, Y. ZhangSeptember 2010Evaluation of Longitudinal Channelizing Barricade Effectiveness0-6103-SM.D. Finley, L. Theiss, N.D. Trout, J.D. Miles, A.A. Nelson2010Guidelines for Signs and Markings on Toll Roads0-5446-SS.T. Chrysler, A.A. Nelson, K. FitzpatrickFebruary 2009Improving Quality and Accuracy in Select Travel Surveys0-5711-SD.F. Pearson, E.N. Hard, S.P. Farnsworth, T.L. Forrest, D.L. Spillane, M.I. Ojah, K.N. Womack, S.A. Boxill, C.A. LewisNovember 2009Driver Comprehension of Managed Lane Signing0-5446-3S.T. Chrysler, A.A. Nelson2009Driver Comprehension of Signing and Markings for Toll Facilities0-5446-2S.T. Chrysler, A.A. Nelson, K. FitzpatrickFebruary 2008Effectiveness of the "Teens in the Driver Seat Program" in Texas0-5657-1R.H. Henk, V.J. Pezoldt, K.N. WomackJanuary 2008Studies to Improve Temporary Traffic Control at Urban Freeway Interchanges and Pavement Marking Material Selection in Work Zones0-5238-2G.L. Ullman, M.D. Finley, A.M. Pike, K.K. Knapp, P. Songchitruksa, A.A. NelsonMarch 2008Improved Temporary Traffic Control Guidelines for Urban Freeway Interchanges0-5238-SG.L. Ullman, M.D. Finley, A.M. Pike, K.K. Knapp, P. Songchitruksa, A.A. NelsonAugust 2007Trucking Industry Response in a Changing World of Tolling and Rising Fuel PricesSWUTC/07/167167-1S.R. Vadali, R.S. Gupta, K.N. Womack, M. PappuDecember 2007Driver Comprehension of Diagrammatic Freeway Guide Signs0-5147-1S.T. Chrysler, A.A. Nelson, D.S. Funkhouser, A.J. Holick, M.A. BrewerFebruary 2007Preliminary Guidelines for Signing on Toll Facilities0-5446-1S.T. Chrysler, A.A. Nelson, K. FitzpatrickMarch 2007Assessing the Effectiveness of the "Teens in the Driver Seat" Program in Texas0-5657-SR.H. Henk, V.J. Pezoldt, K.N. Womack2007Research Recommendations for Pavement Marking Words and Symbols0-4471-SS.T. Chrysler, S.D. Schrock, A.A. NelsonApril 2006Guidelines for the Use of Diagrammatic Guide Signs and Their Alternatives0-5147-SS.T. Chrysler, A.A. Nelson, D.S. Funkhouser, A.J. Holick, M.A. BrewerAugust 2006Traffic Engineering Applications of Driving SimulationSWUTC/06/167142-1S.T. Chrysler, A.A. Nelson, E. ParkDecember 2006Improved Work Zone Portable Changeable Message Sign Usage0-4748-SG.L. Ullman, C.L. Dudek, B.R. Ullman, A.A. Nelson, G. PestiDecember 2005Credit-Based Value Pricing in Texas: An Examination of the Issues0-4119-SM.W. Burris, K.N. Womack, T.S. Collier, S.R. Vadali, J.R. Winn, V.D. Goodin, M.D. MiddletonJanuary 2005Advanced Notification Messages and Use of Sequential Portable Changeable Message Signs in Work Zones0-4748-1G.L. Ullman, B.R. Ullman, C.L. Dudek, A.A. Nelson, G. PestiOctober 2005Identification of Traveler Information and Decision-Making Needs for Managed Lane Users0-4160-13S.D. Schrock, G.L. Ullman, A.A. Nelson, S.T. ChryslerApril 2004Traffic Control Devices for Managed Lanes0-4160-16S.T. Chrysler, A.A. Nelson, S.D. Schrock, G.L. UllmanApril 20043D Visualization as a Tool to Evaluate Sign ComprehensionSWUTC/04/167721-1S.T. Chrysler, J.A. Wright, A.A. NelsonAugust 2004Case Study Analysis of Mid-Size Urban/Rural Area Toll Road Options - Year 1 Report5-4055-01-4V.D. Goodin, T.S. Collier, K.N. Womack, P.S. Green, P.R. Reeder, C.A. Lewis, C.R. SwensonOctober 20042002 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesTTI-2003-8K.N. WomackMarch 2003Examining the Feasibility of Credit-Based Value Pricing in Texas0-4119-1M.W. Burris, K.N. Womack, T.S. Collier, S.R. Vadali, J.R. Winn, M.D. Middleton, V.D. GoodinOctober 20032001 Survey of Front Seat Occupant Restraint Use in Eighteen Texas Cities454160-2K.N. WomackJanuary 20022002 Survey of Child Restraint Use in Fourteen Texas CitiesTTI-2002-19K.N. WomackNovember 20022000 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesTTI-2001-7K.N. WomackJanuary 20012001 Survey of Child Restraint Use in Fourteen Texas CitiesTTI-2001-6K.N. WomackNovember 2001Understanding Road Rage: Summary of First-Year Project Activities7-4945-1C.H. Walters, V.J. Pezoldt, K.N. Womack, S.A. Cooner, B.T. KuhnNovember 2000Deaths and Injuries to Passengers Riding in the Cargo Bed of Pickup Trucks in TexasS.J. De La Zerda, T.A. Dinh-ZarrSeptember 20001999 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesK.N. WomackDecember 19991998 Survey of Child Restraint Use in Fourteen Texas Cities453440K.N. WomackNovember 19981998 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesTTI-1998-7K.N. WomackOctober 1998Characteristics and Conditions of Teenage Safety Belt UseDOT/HS-808-676K.N. Womack, N.D. Trout, B.T. DaviesJuly 1997Social, Economic, and Environmental Effects of Elevated, Depressed, and At-Grade Level Freeways in Texas1327-6FJ.L. Buffington, S.R. Vadali, K.N. Womack, R.A. Zimmer, W.G. McCully, M. Nikolaou, C.A. LewisNovember 1997Social and Economic Effects of Elevated, Depressed, and At-Grade Level Freeways in Texas1327-1J.L. Buffington, K.N. Womack, C.A. LewisNovember 1997Assessment of Mexican Driver Understanding of Existing Traffic Control Devices Used in Texas1274-1H.G. Hawkins, Jr., D.L. Picha, B.L. Mann, C.R. McIlroy, K.N. Womack, C.L. DudekNovember 19961996 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesK.N. WomackOctober 19961996 Survey of Child Restraint Use in Fourteen Texas CitiesK.N. WomackOctober 1996Bicycle Helmet Use Evaluation Using Comparison Site ObservationTRB 960793K.N. Womack1996Texas Bicycle Safety Assessment: Helmet Use SurveysTTI-1995-ID18300K.N. WomackDecember 19951995 Survey of Child Restraint Use in Fourteen Texas CitiesK.N. WomackDecember 1995Motorist Understanding of Traffic Control Devices: Study Results and Recommendations1261-4H.G. Hawkins, Jr., K.N. Womack, J.M. MounceMarch 19951995 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesK.N. WomackNovember 1995Motorist Understanding of Alternative Designs for Traffic Signs1261-5FD.L. Picha, H.G. Hawkins, Jr., K.N. WomackNovember 1995Statewide Public Opinion Survey of Occupant Restraint in TexasTTI-1994-14K.N. WomackJanuary 1994Strategies for Targeting Hispanic DWI CountermeasuresTTI-1994-9K.N. Womack, S.S. Frankel, R.N. ReinhardtSeptember 19941994 Survey of Child Restraint Use in Fourteen Texas CitiesTTI-1994-1K.N. WomackSeptember 19941993 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesK.N. WomackDecember 1993Motorist Comprehension of Traffic Control Devices: Statewide Survey Results1261-2K.N. Womack, H.G. Hawkins, Jr., J.M. MounceFebruary 19931993 Survey of Child Restraint Use in Fourteen Texas CitiesK.N. WomackNovember 1993Statewide Observational Survey of Safety Belt and Motorcycle Helmet Use in Texas--1993TTI-1993-31K.N. Womack, V.J. PezoldtNovember 19931992 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesK.N. WomackDecember 1992Executive Summary of Highway User Operational Information Survey957-1ESR.Q. Brackett, R.D. Huchingson, N.D. Trout, K.N. Womack1992Highway User Operational Information Survey957-1R.Q. Brackett, R.D. Huchingson, N.D. Trout, K.N. WomackFebruary 1991Economic Assessment of the Proposed Improvement of U.S. Highway 287 in Wichita Falls, Texas1915-1FJ.L. Buffington, L.M. Crane, K.N. Womack, R. SallehJune 1991Assessment and Improvement of Motorist Understanding of Traffic Control Devices1261-1J.M. Mounce, H.G. Hawkins, Jr., K.N. WomackJune 1991Economic Assessment of the Proposed Improvement of U.S. Highway 287 in Wichita Falls, Texas: Executive Summary1915-ESJ.L. Buffington, L.M. Crane, K.N. Womack, R. SallehJune 19911991 Survey of Child Restraint Use in Fourteen Texas CitiesK.N. WomackOctober 19911991 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesK.N. WomackSeptember 19911990 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesTTI-1990-12K.N. WomackAugust 1990School Bus Driver Training EvaluationJ.J. Windbigler, K.N. Womack, K.A. BallNovember 19901990 Survey of Child Restraint Use in Fourteen Texas CitiesTTI-1990-11K.N. Womack1990Telephone Survey of Dallas North Central Expressway Users1242-1FK.N. Womack, D.D. BurkeSeptember 1989Public Attitudes Toward the Texas Mandatory Safety Belt Use LawK.N. Womack, K. SchiflettDecember 1988Survey of Attitudes Toward the Texas State Department of Highways and Public Transportation1187-1FK.N. Womack, D.D. BurkeNovember 19881988 Survey of Child Restraint Use in Fourteen Texas CitiesTTI-1988-1K.N. WomackOctober 19881988 Survey of Front Seat Occupant Restraint Use in Eighteen Texas CitiesTTI-1988-2K.N. WomackSeptember 19881987 Survey of Child Restraint Use in Twelve Texas CitiesTTI-1988-3K.N. Womack, J. Fesenmaier19881987 Survey of Front Seat Occupant Restraint Use in Fourteen Texas CitiesK.N. Womack, J. Fesenmaier1987Use of Profiles for Metropolitan Transit Authority Analysis1081-1FK.N. Womack, M.S. Von Tress, J. FesenmaierApril 1986Observed Front Seat Occupant Restraint Use in Fourteen Texas Cities Before and After Safety Belt Use LegislationTARE 73N.G. Bunch, N.J. Hatfield, W.M. Hinshaw, K.N. WomackSeptember 1986Safety Belts on School Buses: The Texas ExperienceTARE 72N.J. Hatfield, K.N. WomackSeptember 1986Minor's Restricted Driver License AnalysisK.N. Womack, G.L. Ockert, R.Q. BrackettSeptember 1985Some Considerations of Equity and Financing and Providing Transit Service in Texas1078-1FD.D. Burke, K.N. Womack, J. Saunders1985School Bus Safety Equipment EvaluationR.Q. Brackett, K.N. Womack, R.J. Koppa, K.K. MakDecember 1984School Bus Safety Equipment Evaluation: Executive SummaryR.Q. Brackett, K.N. Womack, R.J. Koppa, K.K. MakDecember 1984Evaluation of DWI Enforcement Activities 1983R.Q. Brackett, T. Carnahan, K.N. WomackNovember 1983Financial Assistance to Texas Transit: Trends and Effects1073-1FK.N. Womack, M.S. Von TressOctober 1983Summary Report 1060-2F(S): Revenues and Subsidies of Public Transportation in Texas, 1973-19771060-2F(S)K.N. Womack, D.D. BurkeMarch 1981Revenues and Subsidies of Public Transportation in Texas, 1973-19771060-2FK.N. Womack, D.D. BurkeMarch 1981Motorists' Misunderstanding of Symbolic Signing: Safety ImplicationsTTI-1981-ID19179K.N. Womack1981Costs of Public Transportation in Texas, 1973-19771060-1K.N. Womack, D.D. BurkeSeptember 1979Evaluation of Transit Service Improvements: Measures of System Effectiveness1052-5P.K. Guseman, K.N. WomackNovember 1978Land Use Impact of Widening East 29th Street in a Developed Residential Area in Bryan, Texas225-5P.J. Cosby, K.N. Womack, J.L. BuffingtonOctober 1978Land Use Impact of Widening North Texas Avenue in a Developing Area in Bryan, Texas (Summary Report)225-6(S)P.J. Cosby, K.N. Womack, J.L. Buffington1978
