Worcester Polytechnic Institute
Department of Civil and Environmental Engineering
100 Institute Road
Worcester, MA 01609-2280
508-831-5340 (voice)
508-831-5808 (fax)
mhray@wpi.edu
http://www.wpi.edu/~mhray
Dr. Ray has been very active in publishing the results of his scholarship work in a variety of forums over the past 20 years. He has over 120 publications including: two manuals that are nationally recognized design manuals, one State-of-the Practice Monograph for the National Academy of Sciences and two major research reports for the National Academy of Sciences; 40 papers in peer-reviewed journals, 30 papers in conference proceedings, four broadcast-quality technical videotape presentations, over 40 technical reports published by research sponsors and four articles in trade magazines and professional society publications.
M. H. Ray, C. A. Plaxico, J. A. Weir, F. Council, Recommended Guidelines for Curb and Curb-Barrier Combinations, National Cooperative Highway Research Program Report No. 490, ISBN 0-309-08762-7, National Academy of Sciences, Washington, D.C., 2004 (in press).
M. H. Ray, J. A. Weir, J. A. Hopp, In-Service Performance of Traffic Barriers, National Cooperative Highway Research Program Report No. 490, ISBN 0-309-08762-7, National Academy of Sciences, Washington, D.C., 2003.
M. H. Ray for AASHTO-ARTBA-AGC Task Force 13, A Guide to Small Sign Support Hardware, American Association of State Highway and Transportation Officials, Washington, D.C., 1998.
M. H. Ray and R. G. McGinnis, Guardrail and Median Barrier Crashworthiness, Synthesis No. 244, Transportation Research Board, National Academy of Sciences, Washington, D.C., 1997.
M. H. Ray for AASHTO-ARTBA-AGC Task Force 13, A Guide to Standardized Highway Barrier Hardware, American Association of State Highway and Transportation Officials, Washington, D.C., 1995.
M. H. Ray, E. Oldani and C. A. Plaxico, "Design and Analysis of an Aluminum F-Shape Bridge Railing," In International Journal of Crashworthiness, Vol (in press) No. (In press), London, U.K. 2004.
C. A. Plaxico, F. Mozzarelli and M. H. Ray, "Tests and Simulation of a W-Beam Rail-to-Post Connection," In International Journal of Crashworthiness, Vol. 8 No. 6, London, U.K. 2003.
M. H. Ray and J. A. Weir, "In-Service Performance Evaluation of the Bullnose Median Barriers in Iowa, In Journal of Transportation Engineering, American Society of Civil Engineers, Vol. 129, Issue 1, January-February, 2003.
P. Tiso, C. A. Plaxico and M. H. Ray, "An Improved Truck Model for Roadside Safety Simulations: Part II -- Suspension Modeling," Transportation Research Record No. 1797,Transportation Research Board, Washington, D.C., 2002.
M. H. Ray and J. A. Weir, "In-Service Performance Evaluation of the Bullnose Median Barrier in the State of Iowa," In Journal of Transportation Engineering, Volume 129 Number 1, American Society of Civil Engineers, Reston, VA, 2003.
J. A. Weir,Brittany Noga and M. H. Ray, "Using Base Injury Collision Rates to Compare Roadside Hardware Devices," Jounral of Transportation Engineering,, American Society of Civil Engineers (in press), Washington, D.C., 2002.
C. A. Plaxico, F. Mozzarelli and M. H. Ray, "Tests anad Simulation of W-Beam Rail-to-Post Connection," International Journal of Crashworthiness, Volume (in press) Woodhead Publishing, Cambridge, UK, 2003.
P. Tiso, C. A. Plaxico and M. H. Ray, "An Improved Truck Model for Roadside Safety Simulations: Part II -- Suspension Modeling," Transportation Research Record No. 1797, Transportation Research Board, Washington, D.C., 2002
M. H. Ray and J. A. Weir, "Unreported Collisions with Post-and-Beam Guardrails in Connecticut, Iowa and North Carolina," Transportation Research Record No. 1743, Transportation Research Board, Washington, D.C., 2001.
M. H. Ray, C. A. Plaxico and K. E. Engstrand, "Performance of W-Beam Splices," ,Transportation Research Record No. 1743, Transportation Research Board, Washington, D.C., 2001.
M. H. Ray, C. A. Plaxico, K. E. Engstrand and R. G. McGinnis "Improvements to the Weak-Post W-Beam Guardrail," Transportation Research Record No. 1743,Transportation Research Board, Washington, D.C., 2001.
C. A. Plaxico and M. H. Ray, "Comparison of the Impact Performance of the G4(1W) and G4(2W) Guardrail Systems Under NCHRP Report 350 Test 3-11 Conditions," In Roadside Safety Features and Hydraulic, Hydrology and Water Quality Issues, Transportation Research Record No. 1720, Transportation Research Board, Washington, D.C., 2000.
M. H. Ray and K. Hiranmayee, "Evaluating Human Risk in Side Impact Collisions with Roadside Objects," In Roadside Safety Features and Hydraulic, Hydrology and Water Quality Issues, Transportation Research Record No. 1720, Transportation Research Board, Washington, D.C., 2000.
M. H. Ray and J. A. Hopp, "Performance of Breakaway Cable and Modified Eccentric Loader Terminals in Iowa and North Carolina," In Roadside Safety Features and Hydraulic, Hydrology and Water Quality Issues, Transportation Research Record No. 1720, Transportation Research Board, Washington, D.C., 2000.
M. H. Ray, "Safety Effectiveness of Upgrading Guardrail Terminals to Report 350 Standards," In Roadside Safety Features and Hydraulic, Hydrology and Water Quality Issues, Transportation Research Record No. 1720, Transportation Research Board, Washington, D.C., 2000.
M. H. Ray, K. Hiranmayee and S. Kirkpatrick, "Performance validation of two side impact dummies," In International Journal of Crashworthiness, Vol. 4 No. 3, Woodhead Publishing Limited, London, UK, 1999.
G. S. Patzner, C. A. Plaxico and M. H. Ray, "Effect of Post and Soil Strength on the Performance of the Modified Eccentric Loader Breakaway Cable Terminal," In Roadside Safety and Other General Design Issues, Transportation Research Record No. 1690, Transportation Research Board, Washington, D.C., 1999.
M. S. Fitzpatrick, K. L. Hancock and M. H. Ray, "Videolog Assessment of the Vehicle Collision Frequency with Concrete Median Barriers on an Urban Highway in Connecticut," In Roadside Safety and Other General Design Issues, Transportation Research Record No. 1690, Transportation Research Board, Washington, D.C., 1999.
M. H. Ray, "Impact conditions in side impact collisions with fixed roadside objects," In Accident Analysis and Prevention, Vol. 31, No. 1 , Pergamon Press, 1999.
M. H. Ray, "Safety and Cost-Effectiveness of Clearzones in Rockcuts," In Journal of Safety Research Vol. 29, No. 4, American Society of Civil Engineers, Washington, D.C., 1998.
M. H. Ray, M. W. Hargrave, J. F. Carney III and K. Hiranmayee, "Side Impact Test and Evaluation Criteria for Roadside Safety Hardware," In General Design and Roadside Safety Features, Transportation Research Record No. 1647, Transportation Research Board, Washington, D.C., 1999.
C. A. Plaxico, G. S. Patzner and M. H. Ray, "Finite-Element Modeling of Guardrail Timber Posts and Soil-Post Interaction," In General Design and Roadside Safety Features, Transportation Research Record No. 1647, Transportation Research Board, Washington, D.C., 1998.
M. H. Ray, "The Use of Finite Element Analysis in Roadside Hardware Design," International Journal of Crashworthiness, Vol 2, No 4, Woodhead Publishing, London, UK, 1997.
M. H. Ray and G. S. Patzner, "A Finite Element Model of the Modified Eccentric Loader Breakaway Cable Terminal," In Transportation Research Record 1599, Transportation Research Board, Washington, D.C., 1997.
M. H. Ray, "Repeatability of Full-Scale Crash Tests and a Criteria for Validating Finite Element Simulations," In Transportation Research Record No. 1528, Transportation Research Board, Washington, D.C., 1996.
A. E. Wright and M. H. Ray, "Characterizing Guardrail Steels for LS-DYNA3D Simulations," In Transportation Research Record No. 1528, Transportation Research Board, Washington, D.C., 1996.
M. H. Ray, "The Safety Advisor: A Framework for Performing Roadside Safety Assessments," In Transportation Research Record 1468, Transportation Research Board, Washington, D.C., 1994.
M. H. Ray and J. F. Carney III, "Test and Evaluation Criteria for Side Impact Crash Tests", ASCE Journal of Transportation, Vol. 120 No. 4, July/August 1993.
M. H. Ray and J. F. Carney III, "Severity Measures in Side Impact Collisions with Narrow Roadside Structures", ASCE Journal of Transportation, Vol. 120 No. 2, 1994.
G.D. Hahn, J. F. Carney III and M. H. Ray, "On the Numerical Evaluation of the Unforced Response of a Duffing Oscillator (Note)", Journal of Applied Mechanics, Transactions of the ASME., Vol. 59, March 1992.
G.D. Hahn, J. F. Carney III and M. H. Ray, "Suitability of Numerical Methods for Unforced Duffing Oscillators", International Journal of Mechanical Engineering Education, Vol. 20 No. 3, 1991.
M. H. Ray, L.A. Troxel and J. F. Carney III, "Characteristics of Side Impact Accidents involving Fixed Roadside Objects", ASCE Journal of Transportation, Vol. 117, No. 3, May 1991.
L. A. Troxel, M. H. Ray and J. F. Carney III, "Side Impact Collisions with Roadside Objects" Roadside Safety Features, Transportation Research Record No. 1302, Transportation Research Board, 1991.
J. F. Carney III and M. H. Ray, "Full-Scale Crash Testing of Roadside Safety Appurtenances in the United States", Journal of Forensic Engineering, Vol. 2, No. 3, pp. 327-342, 1990.
M. H. Ray and J. F. Carney III, "An Improved Method for Determining Vehicle and Occupant Kinematics in Full-scale Crash Tests," Design and Testing of Roadside Safety Devices, Transportation Research Record No. 1233, Transportation Research Board, Washington, D.C., 1989.
D. S. Logie, J. F. Carney III and M. H. Ray, "A Computer Based Methodology for the Generalized Design of the Connecticut Impact Attenuation System," Design and Testing of Roadside Safety Devices, Transportation Research Record No. 1233, Transportation Research Board, Washington, D.C., 1989.
M. H. Ray, "The Design of Independent Anchor Blocks for Vehicular-Impact Loadings," Roadside Safety Features, Transportation Research Record No. 1133, Transportation Research Board, Washington, DC, 1987.
M. H. Ray, J. D. Michie, W.W. Hunter and J. Stutts, "An Analysis of Occupant Injury in Second Collisions," Roadside Safety Features, Transportation Research Record No. 1133, Transportation Research Board, Washington, DC, 1987.
M. E. Bronstad, M. H. Ray, J.B. Mayer, Jr., and C. F. McDevitt, "Guardrail Bridge-Rail Transition Evaluations," Roadside Safety Features, Transportation Research Record No. 1133, Transportation Research Board, Washington, DC, 1987.
M. E. Bronstad, M. H. Ray, J. B. Mayer Jr., and C. F. McDevitt, "W-Beam Approach Treatment at Bridge Rail Ends Near Intersecting Roadways," Roadside Safety Features, Transportation Research Record No. 1133, Transportation Research Board, Washington, DC, 1987.
M. H. Ray, M. E. Bronstad and J. G. Viner, "Importance of Vehicle Structure and Geometry on the Performance of Roadside Safety Features," Vehicle/Highway Infrastructure: Safety Compatibility, Society of Automotive Engineers, Detroit, MI, February 1987.
M. H. Ray and J. D. Michie, "Events that Produce Occupant Injury in Longitudinal Barrier Collisions," Roadside Safety,Transportation Research Record No. 1065. Transportation Research Board, Washington, DC, 1986.
Karl Barth, Richard McGinnis and Malcolm Ray, "Development of an Improved Roadside Barrier System Phase I," Research Results Digest No. 273, National Cooperative Highway Research Program, Transportation Research Board, Washington, D.C., 2003.
F. Orengo, C.A. Plaxico and M. H. Ray, "Modeling Tire Blow-out in Roadside Hardwarew Simulations Using LS-DYNA," Proceedings of the Annual Meeting, American Society of Mechanical Engineers, Reston, VA, 2003.
M. H. Ray et al, "In-Service Performance of Traffic Barriers," Research Results Digest No. (in press), National Cooperative Highway Research Program,Transportation Research Board, Washington, D.C., 1999.
Phase I," Research Results Digest No. 273, National Cooperative Highway Research Program, Transportation Research Board, Washington, D.C., 2003.M. H. Ray, "Preliminary Recommendations for Performing Side Impact Crash Tests of Roadside Safety Features," In Issues for Improving Roadside Safety, Transportation Research Circular (in press), Transportation Research Board, Washington, D.C., 1999.
M. H. Ray, "The Importance of In-Service Performance Evaluation of Roadside Safety Features," In Issues for Improving Roadside Safety, Transportation Research Circular (in press), Transportation Research Board, Washington, D.C., 1999.
C. A. Plaxico, G. S. Patzner and M. H. Ray, "Finite Element Modeling of a Guardrail Post Mounted in Soil," In Proceedings of the 12th Engineering Mechanics Conference, Society of Civil Engineers, Reston, VA, 1998.
M. H. Ray, K. Hiranmayee and S. Kirkpatrick, "Performance validation of two side impact dummies," In International Crashworthiness Conference, Proceedings of IJCRASH'98, Woodhead Publishing Limited, London, UK, 1998.
J. Wekezer, R. Wuttrich, M. Ramaley and M. H. Ray, "Design Flaws and Structural Retrofit Analysis of Existing BCT Terminals," In International Crashworthiness Conference, Proceedings of IJCRASH'98, Woodhead Publishing Limited, London, UK, 1998.
M. H. Ray and G. S. Patzner, "A Finite Element Model of the Modified Eccentric Loader Breakaway Cable Terminal," In Conference Proceedings FHWA Vehicle Crash Analysis, Federal Hihway Administration, FHWA-RD-96-212, Washington, D.C., 1997.
M. H. Ray, "Finite Element Analysis of the Modified Eccentric Loader Breakaway Cable Guardrail Terminal," In Proceedings of the 32nd Annual Society of Engineering Science, New Orleans, LA, 1995.
M. H. Ray, "Finite Element Analysis as a Tool in Roadside Safety Hardware Design," In Issues for Improving Roadside Safety, Transportation Research Circular 453, Transportation Research Board, Washington, D.C., 1996.
M. H. Ray, J. F. Carney III, and K. S. Opiela, "Summary of Roadside Safety Issues," In Issues for Improving Roadside Safety, Transportation Research Circular 453, Transportation Research Board, Washington, D.C., 1996.
M. H. Ray, "The Safety Advisor: An Interactive Object-Oriented Program for Assessing the Safeness of Roadway and Roadside Designs," In Proceedings of First Congress on Computing in Civil Engineering, American Society of Civil Engineers, New York, 1994.
M. H. Ray, "Quantifying Safety and Managing the Roadside Environment", In Issues Surrounding Highway and Roadside Safety Management, Transportation Research Circular No. 416, Transportation Research Board, Washington, D.C., 1993.
M. H. Ray, "Safety Management and the Assessment of Highway Designs," Proceedings of the Strategic Highway Research Program and Traffic Safety on Two Continents, Vag-och Trafik-Institutet, Linkoping, Sweden, September 1991.
J. F. Carney III and M. H. Ray, "Side Impact Crash Testing of Highway Safety Hardware," Proceedings of the Strategic Highway Research Program and Traffic Safety on Two Continents, Vag-och Trafik-Institutet, Linkoping, Sweden, September 1991.
M. H. Ray and D.S. Logie, "An Object-Oriented Approach to Warranting Roadside Safety Hardware", Proceedings of the ASCE 6th Conference on Computing in Civil Engineering, September 1989.
J. F. Carney and M. H. Ray, "Safety Performance Evaluation of 21st Century Appurtenances", American Society of Civil Engineers, Engineering 21st Century Highways, San Francisco, CA, April 1989.
M. H. Ray and J. F. Carney, "Use of Accelerometer Data to Estimate the Kinematics of Automobile Occupants during Collisions", Proceedings of the Structures Under Shock and Impact Conference, Cambridge, MA, July 1989.
M. H. Ray and J. F. Carney, "The Use of Vehicle Acceleration Data to Estimate the Kinematics of Automobile Occupants during Collisions", Proceedings of the First International Conference on Structures under Shock and Impact, Cambridge, MA, July 1989.
J. F. Carney, J.R. Veillette, and M. H. Ray, "Energy Dissipation Properties of Laterally Crushed Tubes and Tubular Clusters", Proceedings of the Seventh Conference on Vehicle Structural Mechanics, p.169, Society of Automotive Engineers, Detroit, MI, April, 1988.
M. H. Ray, J. D. Michie and M.W. Hargrave, "Occupant Risk in Longitudinal Barrier Collisions," Effectiveness of Highway Safety Improvements, Highway Division of the American Society of Civil Engineers, New York, NY, March 1986.
J. D. Michie, M. H. Ray and W.W. Hunter, "Hazardous Events After Redirectional Collisions," Effectiveness of Highway Safety Improvements, Highway Division of the American Society of Civil Engineers, New York, NY, March 1986.
M. H. Ray, "The Design of Reinforced Concrete Members Using an Expert System," Applications of Artificial Intelligence to Engineering Problems, Proceedings of the 1st International Conference, A Computational Mechanics Publication, Southampton, U.K., April 1986.
M. H. Ray, "Metrication of Standard Guardrail Designs," In Public Roads, Vol. 59, No. 1, Federal Highway Administration, Washington, D.C., Summer 1995.
M. H. Ray, "Using Finite Element Analysis in Designing Roadside Hardware," In Public Roads, Vol. 57, No. 4, Federal Highway Administration, Washington, D.C., 1994.
M. H. Ray, Concrete Bridge Railings, produced for the Federal Highway Administration, 1992.
M. H. Ray, The Modified Thrie Beam Guardrail, produced for the Federal Highway Administration, 1992.
M. H. Ray, Cable Guardrails, produced for the Federal Highway Administration, 1992.
K. Barth, M. Ray, R. McGinnis,"Development of an Improved Roadside Barrier System -- Phase I," Research Results Digest No. 273, National Cooperative Highway Research Program, Washington, D.C., February 2003.
K. E. Engstrand, M. H. Ray, C. A. Plaxico and R. G. McGinnis, "Improvements to the Weak-Post W-Beam Guardrail," Final Report, Pennsylvannia Department of Transportation, Harrisburg, PA, 2001.
D. Shauer, F. Tokarz, G. Kay, A. Lee, R. Logan, E. Coffie and M. H. Ray, Preliminary Vehicle Impact Simulation Technology Advancement (Pre-VISTA), Report No. FHWA-RD-96-059, Federal Highway Administration, Washington, D.C., February 1997.
A. E. Wright and M. H. Ray, Characterizing Roadside Hardware Materials for LS-DYNA3D Simulations, Report No. FHWA-RD-96-108, Federal Highway Administration, Washington, D.C., February 1997.
M. H. Ray, Quantifying the Safeness of Highway Designs, Ph.D. Dissertation, Vanderbilt University, May 1993.
M. H. Ray and J. F. Carney III, Side Impact Crash Testing of Roadside Structures, Federal Highway Administration, FHWA-RD-92-079, Washington, D.C., 1992.
M. H. Ray and J. F. Carney III, Side Impact Test and Evaluation Procedures for Roadside Structure Crash Tests, Federal Highway Administration, FHWA-RD-92-062, Washington, D.C., 1992.
M. H. Ray and J. E. Bryden, Summary Report on Selected Guardrails, Federal Highway Administration, FHWA-SA-92-049, Washington, D.C., 1992.
M. H. Ray, Summary Report on Selected Bridge Railings, Federal Highway Administration, FHWA-SA-92-050, Washington, D.C., 1992.
M. H. Ray and J. E. Bryden, Summary Report on Selected Aesthetic Bridge Rails and Guardrails, Federal Highway Administration, FHWA-SA-92-051, Washington, D.C., 1992.
L. A. Troxel, M. H. Ray, and J. F. Carney III, Accident Data Analysis of Side-Impact, Fixed-Object Collisions, Federal Highway Administration, FHWA-RD-91-122, Washington, D.C., 1992.
J. B. Mayer and M. H. Ray, Full-Scale Vehicle Crash Tests of the V-LOC Mailbox Support System, Foresight Products Inc., Northglenn, CO, 1987.
M. H. Ray and M. A. Scofield, CRASH3 User's Manual, National Highway Traffic Safety Administration, Washington, DC, 1986.
M. E. Bronstad, L. R. Calcote, M. H. Ray and J. B. Mayer, Guardrail-Bridge Rail Transition Designs, Federal Highway Administration, Washington DC, June 1986.
M. H. Ray and J. B. Mayer, Full-Scale Crash Tests of the EZE-ERECT Sign Support, Vol. 1-2, Franklin Steel Co., Franklin, PA, 1986.
M. H. Ray and J. D. Michie, Evaluation of Design Analysis Procedures and Acceptance Criteria for Roadside Hardware, Volumes 1-6, Final Report, Federal Highway Administration, Washington, DC, 1985.
M. H. Ray, Geophysical Sensors for Use in Construction Robotics, Masters Thesis, Carnegie Institute of Technology, Carnegie-Mellon University, Pittsburgh, PA, 1984.