Contents of Volume 55 No. 1 June 1991 Page No. 3 December 1991 Color Recognition of Retroreflective Traffic Signs Analysis of Advisory Speed Setting Criteria Under Various Lighting Conditions by Mashrur A. Chowdhury by John Arens, A. Reza Saremi, and Fatigue Testing for Thermex Reinforcing Bars Carole J. Simmons by Yash Paul Virmani, William Wright, How to Conduct Questionnaire Surveys and Ronald N. Nelson by Peter A. Kopac Laboratory Evaluation of Verglimit and PlusRide Technology Transfer and Its Tools by Kevin D. Stuart and Walaa S. Mogawer by Burton W. Stephens No. 4 March 1992 Statistical Shortcomings in Traffic Studies: Part II by Harry S. Lum Intermodal Surface Transportation Efficiency Act of 1991 No. 2 September 1991 by Charles L. Miller Bridge Temporary Works Research Program by Sheila Rimal Duwadi Evaluation of Low Volatile Organic Compound Coating Systems for Steel Bridges University Tranportation Centers Program: by Shuang-Ling Chong Education and Research for the 21st Century by Harry H. Hersey Testing of a Concrete Sealer Using the Rapid Portland Cement Concrete Program: Chloride Permeability Technique Rehabilitation Challenges and by Yash Paul Virmani and Dennis G. Sixbey... 117 Recommendations by Nita Congress and Michael |. Darter List of Authors (and volume page reference) John Arens Walaa S. Mogawer Shuang-Ling Chong Ronald N. Nelson Mashrur A. Chowdhury A. Reza Saremi Nita Congress Carole J. Simmons Michael |. Darter Dennis G. Sixbey Sheila Rimal Duwadi Burton W. Stephens Harry H. Hersey Kevin D. Stuart Peter A. Kopac Yash Paul Virmani Harry S. Lum William Wright Charles L. Miller vr U.S. Government Printing Office: 1992—312-683/60002 PUBLIC ROADS = Vol. 55, No. 4