| Evaluation of traffic control devices for rural high-speed maintenance work zones: Second year activities and final recommendations MD Fontaine, PJ Carlson, HG Hawkins Texas Transportation Institute, Texas A & M University System, 2000 | 65 | 2000 |
| Updated minimum retroreflectivity levels for traffic signs PJ Carlson, HG Hawkins Jr | 47 | 2003 |
| Field evaluations of warning and regulatory signs with enhanced conspicuity properties TJ Gates, PJ Carlson, HG Hawkins Transportation Research Record: Journal of the Transportation Research Board …, 2004 | 46 | 2004 |
| Traffic control devices handbook JL Pline Inst of Transportation Engrs, 2001 | 41* | 2001 |
| Effective Pavement Marking Materials and Applications for Portland Cement Concrete Roadways TJ Gates, HG Hawkins, ER Rose Texas Transportation Institute, Texas A & M University System, 2003 | 40 | 2003 |
| Evaluation of Traffic Control Devices for Rural High-Speed Maintenance Work Zones PJ Carlson, MD Fontaine, HG Hawkins Texas Transportation Institute, Texas A & M University System, 2000 | 40 | 2000 |
| Innovative Traffic Control Technology and Practice in Europe LL Brown, JL Butner, R Cunard, SC Davis, EL Fischer, H Hawkins, ... United States. Federal Highway Administration, 1999 | 39 | 1999 |
| Innovative Traffic Control Technology and Practice in Europe SC Tignor, LL Brown, JL Butner, R Cunard, SC Davis, HG Hawkins, ... | 39* | 1999 |
| Legibility comparison of three freeway guide sign alphabets HG Hawkins Jr, MD Wooldridge, AB Kelly, DL Picha, FK Greene | 37* | 1999 |
| Driver comprehension of regulatory signs, warning signs, and pavement markings H Hawkins Jr, KN Womack, JM Mounce Transportation research record, 1993 | 36 | 1993 |
| Minimum retroreflectivity levels for overhead guide signs and street-name signs PJ Carlson, H Hawkins Jr Turner-Fairbank Highway Research Center, 2003 | 34 | 2003 |
| The use of wider longitudinal pavement markings TJ Gates, HG Hawkins Texas Transportation Institute, Texas A & M University System, 2001 | 30 | 2001 |
| The Use of Wider Longitudinal Pavement Markings TJ Gates, HG Hawkins | 29 | 2002 |
| Evaluation of Speed Trailers at High-Speed Temporary Work Zones PJ Carlson, M Fontaine, HG Hawkins, K Murphy, D Brown Proceedings: 79 th Annual Meeting of the Transportation Research Board …, 2000 | 27 | 2000 |
| Traffic Operational Impacts of Higher-Conspicuity Sign Materials TJ Gates, HG Hawkins Jr, ST Chrysler, PJ Carlson, AJ Holick, ... | 26 | 2003 |
| NCHRP Report 484: Feasibility Study for an All-White Pavement Marking System HG Hawkins Jr, AH Parham, KN Womack Transportation Research Board, National Research Council, Washington, DC, 2002 | 25* | 2002 |
| Assessing benefits of chevrons with full retroreflective signposts on rural horizontal curves JM Re, HG Hawkins, ST Chrysler Transportation Research Record: Journal of the Transportation Research Board …, 2010 | 24 | 2010 |
| Sign retroreflectivity: Comparing results of nighttime visual inspections with application of minimum retroreflectivity values HG Hawkins, PJ Carlson Transportation Research Record: Journal of the Transportation Research Board …, 2001 | 23 | 2001 |
| Motorist understanding of alternative designs for traffic signs DL Picha, HG Hawkins, KN Womack | 23 | 1995 |
| Review and development of recommended minimum pavement marking retroreflectivity levels C Debaillon, PJ Carlson, HG Hawkins, Y He, T Schnell, F Aktan Transportation Research Record: Journal of the Transportation Research Board …, 2008 | 22 | 2008 |
Timothy J. GatesProfessor of Civil Engineering, Michigan State UniversityVerified email at msu.edu
