test | John Ivan

Edited Monographs
1. J. Ivan, K. Konduri, “Crash Severity Methods”, in Transport and Sustainability Book Series – Safe Mobility: Methodology and Crash Data Analysis, D. Lord and S. Washington, eds., Emerald publishing, Apr. 2018.
2. J. Bonneson, J. Ivan, Theory, Explanation, and Prediction in Road Safety: Promising Directions, Transportation Research E-Circular E-C179, Transportation Research Board, Washington DC, Nov. 2013.
Refereed Journals
1. Y. Zhang, N. Ravishanker, J. Ivan, S. Mamun, “An Application of the tau-path Method in Highway Safety”, Journal of the Indian Society for Probability and Statistics, accepted, Nov. 2018.
2. K. Wang, S. Zhao, J. Ivan, I. Ahmed, E. Jackson, “Evaluation of Hot Spot Identification Methods for Municipal Roads”, Journal of Transportation Safety and Security, Oct. 2018, DOI: http://dx.doi.org/10.1080/19439962.2018.1504262.
3. S. Mamun, F. Caraballo, J. Ivan, N. Ravishanker, R. Townsend, Y. Zhang, “Identifying Association Between Pedestrian Safety Interventions and Street Crossing Behavior Considering Demographics and Traffic Context”, Journal of Transportation Safety and Security, Oct. 2018, DOI:
http://dx.doi.org/10.1080/19439962.2018.1490369.
4. H. Zhou, J. Ivan, P. Gårder, N. Ravishanker, “Gap acceptance for left turns from the major road at unsignalized intersections”, Transport, 32(3):252-261; July 2017, DOI: http://dx.doi.org/10.3846/16484142.2014.933445.
5. K. Wang, J. Ivan, A. Burnicki, S. Mamun, “Predicting Local Road Crashes Using Socio-economic and Land Cover Data”, Journal of Transportation Safety and Security, 9(3):301-318, July 2017, DOI: http://dx.doi.org/10.1080/19439962.2016.1206048.
6. K. Wang, J. Ivan, N. Ravishanker, E. Jackson, “Multivariate Poisson Lognormal Modeling of Crashes by Type and Severity on Rural Two Lane Highways”, Accident Analysis & Prevention, 99:6-19, Feb. 2017, DOI: http://dx.doi.org/10.1016/j.aap.2016.11.006.
7. J. Ivan, K. McKernan, Y. Zhang, N. Ravishanker, S. Mamun, “A Study of Pedestrian Compliance with Traffic Signals for Exclusive and Concurrent Phasing”, Accident Analysis & Prevention, 98:157-166, Jan. 2017, DOI: http://dx.doi.org/10.1016/j.aap.2016.10.003.
8. V. Serhiyenko, S. Mamun, J. Ivan, N. Ravishanker, “Fast Bayesian Inference for Modeling Multivariate Crash Counts”, Analytic Methods in Accident Research, 9:44–53; March 2016, DOI: http://dx.doi.org/10.1016/j.amar.2016.02.002.
9. Y. Zhang, S. Mamun, J. Ivan, N. Ravishanker, K. Haque, “Safety Effects of Exclusive and Concurrent Signal Phasing for Pedestrian Crossing”, Accident Analysis & Prevention, 83:26-36; Oct. 2015.
10. K. Wang, S. Yasmin, K. Konduri, N. Eluru, Naveen, J. Ivan, “A Copula Based Joint Model of Injury Severity and Vehicle Damage in Two-Vehicle Crashes” Transportation Research Record, 2514:158-166; 2015 (Best Paper by Young Researcher Award, Committee on Safety Data, Analysis and Evaluation).
11. H. Zhou, N. Lownes, J. Ivan, P. Gårder, N. Ravishanker, “Left-Turn Gap Acceptance Behavior of Elderly Drivers at Unsignalized Intersections”, Journal of Transportation Safety and Security, 7(4):324-344; Oct. 2015.
12. M. Islam, J. Ivan, N. Lownes, R. Ammar, S. Rajasekaran, “Safety Performance Function for Freeways Considering Interactions between Speed Limit and Geometric Variables”, Transportation Research Record, 2014:72-81; 2014.
13. M. Islam, V. Serhiyenko, J. Ivan, N. Ravishanker, P. Garder, “Explaining Pedestrian Safety Experience at Urban and Suburban Street Crossings Considering Observed Conflicts and Pedestrian Counts”, Journal of Transportation Safety & Security, 6(4):335-355; Oct. 2014.
14. V. Serhiyenko, J. Ivan, N. Ravishanker, M. Islam, “Dynamic Compositional Modeling of Pedestrian Crash Counts on Urban Roads in Connecticut”, Accident Analysis & Prevention, 64:78-85; Mar. 2014.
15. J. Mooradian, J. Ivan, N. Ravishanker, S. Hu, “Analysis of Driver and Passenger Crash Injury Severity Using Partial Proportional Odds Models”, Accident Analysis & Prevention, 58:53-58; Sep. 2013.
16. S. Hu, J. Ivan, N. Ravishanker, J. Mooradian, “Temporal Modeling of Highway Crash Counts for Senior and Non-Senior Drivers”, Accident Analysis & Prevention, 50:1003-1013; Jan. 2013.
17. J. Ivan, T. Jonsson and A. Borsos, “Motor Vehicle Speeds: Recommendations for Urban Sustainability”, Transportation Research Record, 2301:1-8; 2012.
18. A. Borsos, C. Koren, J. Ivan and N. Ravishanker, “Long-term Safety Trends as a Function of Vehicle Ownership in 26 Countries”, Transportation Research Record, 2280:154-161; 2012 (Best Paper Award, Committee on Safety Data, Analysis and Evaluation).
19. J. Ivan, N. Ravishanker, E. Jackson, B. Aronov and S. Guo, “A Statistical Analysis of the Effect of Wet Pavement Friction on Highway Traffic Safety”, Journal of Transportation Safety and Security, 4(2):116-136, Jun. 2012.
20. H. Zhou, J. Ivan, A. Sadek, N. Ravishanker, “Safety Effects of Exclusive Left-Turn Lanes at Unsignalized Intersections and Driveways”, Journal of Transportation Safety and Security, 2(3):221-238; 2010.
21. S. Bindra, J. Ivan and T. Jonsson, “Predicting Segment-Intersection Crashes with Land Development Data”, Transportation Research Record, 2102:9-17; 2009.
22. T. Jonsson, C. Lyon, J. Ivan, S. Washington, I. van Schalkwyk, D. Lord, “Differences in the Performance of Safety Performance Functions Estimated for Total Crash Count and for Crash Count by Crash Type”, Transportation Research Record, 2102:115-123; 2009.
23. C. Zhang, J. Ivan and N. Ravishanker, “Vehicle Time Spent in Following: New Exposure Measure for Predicting Same-Direction Collisions on Two-Lane Rural Roads,” Transportation Research Record, 2083:162-169; 2008.
24. S. Ranade, A. Sadek and J. Ivan, “A Decision Support System for Predicting the likely Benefits of Left-turn Lane Installations,” Transportation Research Record, 2023:28-36; 2007 (Best Paper Award, Committee on Operational Effects of Geometrics).
25. T. Jonsson, J. Ivan and C. Zhang, “Crash Prediction Models for Intersections on Rural Multilane Highways: Differences by Collision Type,” Transportation Research Record, 2019:91-98; 2007.
26. D. Lord, S. Washington, J. Ivan, “Further Notes on the Application of Zero-Inflated Models in Highway Safety,” Accident Analysis & Prevention, 39(1):53-57; Jan. 2007.
27. X. Qin, J. Ivan, N. Ravishanker, J. Liu, D. Tepas, “Bayesian Estimation of Hourly Exposure Functions by Crash Type and Time of Day,” Accident Analysis & Prevention, 38(6)1071-1080; Nov. 2006.
28. Z. Deng, J. Ivan and P. Gårder, “Analysis of Factors Affecting the Severity of Head-on Crashes on Two-lane Rural Highways in Connecticut,” Transportation Research Record, 1953:137-146; 2006.
29. E. Smith and J. Ivan, “Evaluation of Safety Benefits and Potential Crash Migration Due to Shoulder Rumble Strip Installation on Connecticut Freeways,” Transportation Research Record, 1908:104-113; 2005.
30. C. Zhang and J. Ivan, “Effects of Geometric Characteristics on Head-on Crash Incidence on Two-lane Roads in Connecticut,” Transportation Research Record, 1908:159-164; 2005.
31. X. Qin, J. Ivan, N. Ravishanker, and J. Liu, “Hierarchical Bayesian Estimation of Safety Performance Functions for Two-Lane Highways Using MCMC Modeling,” ASCE Journal of Transportation Engineering, 131(5):345-351; May 2005.
32. D. Lord, S. Washington, and J. Ivan, “Poisson, Poisson-gamma and Zero-inflated Regression Models of Motor Vehicle Crashes: Balancing Statistical Fit and Theory,” Accident Analysis & Prevention, 37(1):35-46; Jan. 2005 (Top 10 cited papers in journal, 2005-2009).
33. J. Ivan, “New Approach for Including Traffic Volumes in Crash Rate Analysis and Forecasting,” Transportation Research Record, 1897:134-141; 2004.
34. X. Qin, J. Ivan, and N. Ravishanker, “Selecting Exposure Measures in Crash Rate Prediction for Two-lane Highway Segments,” Accident Analysis & Prevention, 36(2):183-191; Mar. 2004.
35. A. Sadek, S. Morse, J. Ivan and W. ElDessouki, Case-based Reasoning for Assessing Intelligent Transportation Systems Benefits,” Computer-Aided Civil and Infrastructure Engineering, 18(3):173-183; May 2003.
36. S. Zajac and J. Ivan, “Factors Influencing Injury Severity of Motor Vehicle – Crossing Pedestrian Crashes in Rural Connecticut,” Accident Analysis & Prevention, 35(3):369-379; May 2003.
37. X. Qin and J. Ivan, “Estimating Pedestrian Exposure Prediction Model in Rural Areas,” Transportation Research Record, 1773:89-96; 2001.
38. F. Yuan, J. Ivan, X. Qin, N. Garrick and C. Davis, “Safety Benefits of Intersection Approach Realignment on Rural Two-Lane Highways,” Transportation Research Record, 1758:21-29; 2001.
39. P. Ossenbruggen, J. Pendarkar and J. Ivan, “Roadway Safety in Rural and Small Urbanized Areas,” Accident Analysis & Prevention, 33:485-498; 2001.
40. J. Ivan and S. Allaire, “Regional and Area-Type Models for Estimating Peak Spreading on Connecticut Freeways,” ASCE Journal of Transportation Engineering, 127(3):223-229; May/Jun. 2001.
41. J. Ivan, C. Wang and N. Bernardo, “Explaining Two-lane Highway Crash Rates Using Land Use and Hourly Exposure,” Accident Analysis & Prevention, 32(6):787-795; Nov. 2000.
42. J. Ivan, R. Pasupathy and P. Ossenbruggen, “Differences in Causality Factors for Single and Multi-Vehicle Crashes on Two-Lane Highways,” Accident Analysis & Prevention, 31:695-704; 1999.
43. J. Zhao, J. Ivan and J. DeWolf, “Structural Monitoring Using Artificial Neural Networks,” ASCE Journal of Infrastructure Systems, 4(3):93-101; Sep. 1998.
44. J. Ivan and V. Sethi, “Data Fusion of Fixed Detector and Probe Vehicle Data for Incident Detection,” Computer-Aided Civil and Infrastructure Engineering, 13:329-337; 1998.
45. J. Ivan, “Neural Network Representations for Arterial Street Incident Detection,” Transportation Research Part C, 5(3/4):245-254; 1997.
46. J. Ivan and S. Chen, “Incident Detection Using Vehicle and Fixed Location Surveillance,” ASCE Journal of Transportation Engineering, 123(3):209-215; May/Jun. 1997.
47. S. Braun and J. Ivan, “Estimating Intersection Approach Delay Using 1985 and 1994 Highway Capacity Manual Procedures,” Transportation Research Record, 1555:23-32; 1996.
48. N. Bhandari, F. Koppelman, J. Schofer, V. Sethi and J. Ivan, “Arterial Incident Detection Integrating Data from Multiple Sources,” Transportation Research Record, 1510:60-69; 1995.
49. J. Ivan, J. Schofer, F. Koppelman and L. Massone, “Real-Time Data Fusion for Arterial Street Incident Detection Using Neural Networks,” Transportation Research Record, 1497:27-35; 1995.
Conferences
Conference Proceedings (peer-reviewed)
1. W. Lawrence, R. Townsend, J. Ivan, N. Ravishanker, “The Rhetorical Process of Justification in Pedestrian Safety Deliberations”, Eastern Communication Association Convention, April 2017.
2. A. Borsos, J. Ivan, G. Orosz, “Development of safety performance functions for two-lane rural first class main roads in Hungary”, in Research for Innovative Transports, Volume 4 Traffic Safety, Chap. 6, pp. 87-100, ISBN: 978-1-78630-030-0, June. 2016.
3. J. Ivan, N. Ravishanker, R. Townsend, S. Mamun, F. Caraballo, Y. Zhang, “Social network effects on attitudes about pedestrian street crossing behaviour: preliminary findings”, in Proc. of Road Safety on 5 Continents, Rio de Janeiro, Brazil, May 2016.
4. L. Fiondella, S. Tolba, R. Ammar, N. Lownes, S. Rajasekaran, J. Ivan, “VDPA: A WSN Deployment and Analysis Tool for Road Network Security”, In Proc. of 2012 IEEE International Conference on Technologies for Homeland Security (HST 2012), Waltham, MA, pp. 495-500, Nov. 2012.
5. L. Fiondella, A. Rahman, N. Lownes, J. Ivan, S. Rajasekaran, R. Ammar, “A Game Theory Approach to Identify Alternative Regulatory Frameworks for Hazardous Materials Routing”, In Proc. of 2012 IEEE International Conference on Technologies for Homeland Security (HST 2012), Waltham, MA, pp. 489-494, Nov. 2012.
6. L. Fiondella, J. Liu, X. Han, R. Ammar, S. Rajasekaran, N. Lownes, J. Ivan, “Smart Phone Assisted City-scale Wireless Sensor Network Deployment for Transportation System Monitoring”, In Proc. of 2012 IEEE International Conference on Technologies for Homeland Security (HST 2012), Waltham, MA, pp. 411-416, Nov. 2012.
7. J. Ivan, J. Ocana, N. Ravishanker, V. Serhiyenko, M. Islam, “Street Design and Land Development Factors Associated with Pedestrian-Vehicle Conflicts” In Proc. Of the 4th Urban Street Symposium, Transportation Research Board, Chicago IL, June 2012.
8. Q. Wang, L. Fiondella, N. Lownes, J. Ivan, R. Ammar, S. Rajasekaran, and S. Tolba, “Integrating Equilibrium Assignment in Game-theoretic Approach to Measure Many-to-Many Transportation Network Vulnerability” In Proc. of 11th IEEE International Conference on Technologies for Homeland Security (HST 2011), Waltham, MA, pp. 351-357, Nov. 2011.
9. S. Tolba, L. Fiondella, R. Ammar, N. Lownes, S. Rajasekaran, J. Ivan, and Q. Wang. “Modeling Attacker-Technology System Interaction in Transportation Networks: P2I3-Model” In Proc. of 11th IEEE International Conference on Technologies for Homeland Security (HST 2011), Waltham, MA, pp. 306-312, Nov. 2011.
10. J. Du, J. Ivan, P. Gårder and L. Aultman-Hall, “Public Perceptions of Traffic Calming Devices,” 2003 Institute of Transportation Engineers Annual Meeting and Exhibit, Aug. 2003.
11. M. Zhao, J. Ivan and N. Ravishanker, “Freeway Link Traffic Volumes by Time of Day Estimation Procedures,” in Traffic and Transportation Studies, Proceedings of ICTTS 2000, published by ASCE, Aug. 2000, p. 519-526.
12. J. Ivan and M. Kusuma, “Interactions among Land Use, Area Type, Congestion Mitigation Strategies, and Air Quality,” in Transportation, Land Use and Air Quality: Making the Connection, Proceedings of the Conference sponsored by ASCE, May 1998, p. 729-736.
13. S. Chen and J. Ivan, “Integrated Traffic Control for Incidents in Freeway-Arterial Corridors,” in Traffic Congestion and Traffic Safety in the 21st Century, Proceedings of the Conference sponsored by ASCE, Jun. 1997, p. 291-297.
14. J. Ivan, “Factors Affecting the Performance of Surface Street Incident Detection Systems,” in Surface Street Incident Detection, Proceedings of the Workshop sponsored by FHWA and Oak Ridge National Laboratory, Scottsdale AZ, Aug. 1996, p. 93-134.
15. J. Ivan and S. Chen, “A Proposed Methodology for Real-Time Corridor Traffic Control During Freeway Incidents,” in Intelligent Transportation: Realizing the Benefits, Proceedings of the 1996 Annual Meeting of ITS America, Houston TX, Apr. 1996, Vol. 1, p. 378-385.
16. J. Ivan and V. Sethi, “Data Fusion of Fixed Detector and Probe Vehicle Data for Incident Detection,” in Neural Network Applications in Highway and Vehicle Engineering, Conference Proceedings, The George Washington University, Ashburn VA, Apr. 1996, p. 117-130.
17. J. Ivan, C. Davis and S. Chen, “Vehicle-Based Versus Fixed Location Measurements for Traffic Surveillance in IVHS,” in Intelligent Vehicle Highway Systems, R. J. Becherer, Editor, Proceedings SPIE 2344, 1995, p. 187-198.
18. J. Ivan, J. Schofer, C. Bhat, P. Liu, F. Koppelman and A. Rodriguez, “Arterial Street Incident Detection Using Multiple Data Sources: Plans for the ADVANCE Project,” in Pacific Rim TransTech Conference Proceedings – Volume 1: Advanced Technologies, C. Hendrickson and K. Sinha, Editors, 1993, p. 429-435.
Conference Papers (full paper peer-reviewed)
1. Y. Zhang, N. Ravishanker, J. Ivan, S. Mamun, “Where Can Conflicts Be Surrogates for Crashes? An Investigation Based on a Semi-Parametric Statistical Approach”, Transportation Research Board Annual Meeting, Paper No. 17-02090, Washington, DC, Jan. 2017.
2. J. Ivan, K. McKernan, Y. Zhang, N. Ravishanker, S. Mamun, “A Study of Pedestrian Compliance with Traffic Signals for Exclusive and Concurrent Phasing”, Transportation Research Board Annual Meeting, Paper No. 16-4072, Washington, DC, Jan. 2016.
3. K. Wang, J. Ivan, A. Burnicki, S. Mamun, “Predicting Local Road Crashes Using Socio-economic and Land Cover Data”, Transportation Research Board Annual Meeting, Paper No. 16-1114, Washington, DC, Jan. 2016.
4. K. Wang, S. Yasmin, K. Konduri, N. Eluru, Naveen, J. Ivan, “A Copula Based Joint Model of Injury Severity and Vehicle Damage in Two-Vehicle Crashes”, Transportation Research Board Annual Meeting, Paper No. 15-4253, Washington, DC, Jan. 2015 (Best Paper by Young Researcher Award, Committee on Safety Data, Analysis and Evaluation).
5. M. Islam, J. Ivan, N. Lownes, R. Ammar, S. Rajasekaran, “Safety Performance Function for Freeways Considering Interactions between Speed Limit and Geometric Variables”, Transportation Research Board Annual Meeting, Paper No. 14-2933, Washington, DC, Jan. 2014.
6. A. Borsos, C. Koren, J. Ivan and N. Ravishanker, “Analysis of Aggregate Crash Data in the USA for 1967-2010”, Transportation Research Board Annual Meeting, Paper No. 13-3947, Washington, DC, Jan. 2013.
7. J. Mooradian, J. Ivan, N. Ravishanker and S. Hu, “Temporal Modeling of Highway Crash Severity for Seniors and Other Involved Persons”, Transportation Research Board Annual Meeting, Paper No. 12-3582, Washington, DC, Jan. 2012.
8. A. Borsos, C. Koren, J. Ivan and N. Ravishanker, “Long-term Safety Trends Related to Vehicle Ownership in 26 Countries”, Transportation Research Board Annual Meeting, Paper No. 12-3475, Washington, DC, Jan. 2012 (Best Paper Award, Committee on Safety Data, Analysis and Evaluation).
9. J. Ivan, T. Jonsson and A. Borsos, “Motor Vehicle Speeds: Recommendations for Urban Sustainability”, Transportation Research Board Annual Meeting, Paper No. 12-0026, Washington, DC, Jan. 2012.
10. H. Zhou, N. Lownes, J. Ivan, P. Gårder and N. Ravishanker, “Gap Acceptance of Elderly Drivers making Left Turns at Unsignalized Intersections”, Transportation Research Board Annual Meeting, Paper No. 10-1668, Washington, DC, Jan. 2010.
11. H. Zhou, J. Ivan and A. Sadek, “Safety Effects of Exclusive Left Turn Lanes at Unsignalized Intersections and Driveways”, Transportation Research Board Annual Meeting, Paper No. 09-2000, Washington, DC, Jan. 2009.
12. T. Jonsson, C. Lyon, J. Ivan, S. Washington, D. Lord, I. van Schalkwyk, “Investigating Differences In The Performance Of Safety Performance Functions Estimated For Total Crash Count And For Crash Count By Crash Type”, Transportation Research Board Annual Meeting, Paper No. 09-3123, Washington, DC, Jan. 2009.
13. S. Bindra, J. Ivan and T. Jonsson, “Predicting Segment-Intersection Crashes Using Land Development Data”, Transportation Research Board Annual Meeting, Paper No. 09-1877, Washington, DC, Jan. 2009.
14. C. Zhang, J. Ivan and N. Ravishanker, “Using Vehicle-Time-Spent-Following as Exposure for Predicting Same-direction Collisions on Two-Lane Rural Roads,” Transportation Research Board Annual Meeting, Paper No. 08-0938, Washington, DC, Jan. 2008.
15. G. Hanson, N. Garrick, J. Ivan and T. Jonsson, “Variation in Free Flow Speed due to Roadway Type and Roadside Environment,” Transportation Research Board Annual Meeting, Paper No. 07-3136, Washington, DC, Jan. 2007.
16. T. Jonsson, J. Ivan and C. Zhang, “Crash Prediction Models For Intersections on Rural Multilane Highways: Differences by Collision Type,” Transportation Research Board Annual Meeting, Paper No. 07-0368, Washington, DC, Jan. 2007.
17. S. Ranade, A. Sadek and J. Ivan, “A Decision Support System for Predicting the likely Benefits of Left-turn Lane Installations,” Transportation Research Board Annual Meeting, Paper No. 07-0992, Washington, DC, Jan. 2007 (Best Paper Award, Committee on Operational Effects of Geometrics).
18. C. Zhang, J. Ivan and T. Jonsson, “Collision Type Categorization Based on Crash Causality and Severity Analysis,” Transportation Research Board Annual meeting, Paper No. 07-2454, Washington, DC, Jan. 2007.
19. Z. Deng, J. Ivan and P. Gårder, “Analysis of Factors Affecting the Severity of Head-on Crashes on Two-lane Rural Highways in Connecticut,” Transportation Research Board Annual Meeting, Paper No. 06-1722, Washington, DC, Jan. 2006.
20. T. Jonsson, Z. Deng, and J. Ivan, “A Procedure for Allocating Zonal Attributes to a Link Network in a GIS Environment,” Transportation Research Board Annual Meeting, Paper No. 06-2561, Washington, DC, Jan. 2006.
21. C. Zhang, J. Ivan and T. Jonsson, “Predicting Two-lane Highway Crashes Using Crash Opportunities: A Newly Defined Measure of Exposure,” Transportation Research Board Annual Meeting, Paper No. 06-2317, Washington, DC, Jan. 2006.
22. E. Smith and J. Ivan, “Evaluation of Safety Benefits and Potential Crash Migration Due to Shoulder Rumble Strip Installation on Freeways in Connecticut,” Transportation Research Board Annual Meeting, Washington, DC, Jan. 2005.
23. C. Zhang and J. Ivan, “Effects of Geometric Characteristics on Head-on Crash Incidence on Two-lane Roads in Connecticut,” Transportation Research Board Annual Meeting, Washington, DC, Jan. 2005.
24. C. Zhang, J. Ivan, W. ElDessouki and E. Anagnostou, “Relative Risk Analysis for Studying the Impact of Adverse Weather Conditions and Congestion on Traffic Accidents,” Transportation Research Board Annual Meeting, Washington, DC, Jan. 2005.
25. J. Ivan, “A New Approach for Including Traffic Volumes in Crash Rate Analysis and Forecasting,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2004.
26. D. Lord, S. Washington, and J. Ivan, “Statistical Challenges with Modeling Motor Vehicle Crashes: Understanding the Implications of Alternative Approaches,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2004.
27. X. Qin, J. Ivan, and N. Ravishanker, “Hierarchical Bayesian Estimation of Hourly Exposure Functions for Two-lane Roads by Crash Type and Time of Day,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2004.
28. X. Qin, J. Ivan, and N. Ravishanker, “A Hierarchical Bayesian Estimation of Non-linear Safety Performance Functions for Two-lane Highways Using MCMC Modeling,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2003.
29. W. ElDessouki, J. Ivan and F. Guo, “Trafficshed Approach for Estimating Hourly Traffic Volumes on Freeways,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2003.
30. J. Rimiller, J. Ivan and N. Garrick, “Estimating Benefits from Specific Highway Safety Improvements: Phase III – Benefits of Lane Widening and Adding Left Turn Lanes,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2002.
31. X. Qin and J. Ivan, “Selecting Exposure Measures for Predicting Crash Rates on Two-lane Rural Highways,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2002.
32. F. Yuan, J. Ivan, X. Qin, N. Garrick and C. Davis, “Safety Benefits of Intersection Approach Realignment on Rural Two-Lane Highways,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2001.
33. X. Qin and J. Ivan, “Estimating Pedestrian Exposure Prediction Model in Rural Areas,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2001.
34. S. Zajac and J. Ivan, “Factors Influencing Injury Severity of Motor Vehicle-Crossing Pedestrian Crashes in Rural Connecticut,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2001.
35. C. Wang and J. Ivan, “Representing Traffic Exposure in Multi-Vehicle Crash Prediction for Two-Lane Highway Segments,” Transportation Research Board Annual Meeting, Washington DC, Jan. 2000.
36. S. Allaire and J. Ivan, “Factors Influencing Peak Spreading on Connecticut Freeways: A Preliminary Investigation,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1999.
37. F. Yuan, J. Ivan, C. Davis and N. Garrick, “Estimating Benefits from Specific Highway Improvements: Phase 1 – Feasibility Study,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1999.
38. N. Bernardo and J. Ivan, “Predicting Number of Crashes Versus Crash Rate Using Poisson Regression,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1998.
39. J. Ivan and P. O’Mara, “Prediction of Non-Freeway Traffic Accident Rates in Connecticut Using Poisson Regression,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1997.
40. U. Jha and J. Ivan, “Solving for Stochastic User Equilibrium Using Optimal Step-Sizes and Modified Step Directions,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1997.
41. C. Davis, J. Ivan and G. Campbell, “Application of Multi-Criteria Decision Making and Risk Analysis to Congestion Management,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1997.
42. J. Ivan, “Neural Network Representations for Arterial Street Incident Detection,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1996.
43. S. Braun and J. Ivan, “Estimating Intersection Approach Delay Using 1985 and 1994 Highway Capacity Manual Procedures,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1996.
44. J. Ivan, J. Schofer, F. Koppelman and L. Massone, “Real-Time Data Fusion for Arterial Street Incident Detection Using Neural Networks,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1995.
45. N. Bhandari, F. Koppelman, J. Schofer, V. Sethi and J. Ivan, “Arterial Incident Detection Integrating Data from Multiple Sources,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1995.
Presentations
Conference Presentations
1. K. Wang, S. Zhao, J. Ivan, I. Ahmed, E. Jackson, “Evaluation of Hot Spot Identification Methods for Municipal Roads”, presented at Transportation Research Board Annual Meeting, Washington, DC, Jan. 2018.
2. J. Ivan, “Counterintuitive Results and Research for the Highway Safety Manual”, presented at Transportation Research Board Annual Meeting, Washington, DC, Jan. 2018.
3. J. Ivan, “Statistical Challenges for Advances in Estimation of Traffic Exposure and Crash Prediction”, presented at Summer Program on Transportation Statistics, Statistical and Applied Mathematical Sciences Institute, NSF, Durham, NC, Aug. 2017.
4. K. Wang, J. Ivan, A. Burnicki, S. Mamun, “Predicting Local Road Crashes Using Socio-economic and Land Cover Data”, presented at Road Safety on 5 Continents, Rio de Janeiro, Brazil, May 2016.
5. Y. Zhang, S. Mamun, J. Ivan, N. Ravishanker, K. Haque, “Safety Effects of Exclusive and Concurrent Signal Phasing for Pedestrian Crossing”, presented at Road Safety on 5 Continents, Rio de Janeiro, Brazil, May 2016.
6. J. Ivan “How Are Roadway and Roadside Characteristics Related to Vehicle Speeds and Pedestrian Safety?” Oregon Transportation Summit, Portland Oregon, Sep. 16, 2013.
7. J. Ivan, “Information Sharing Challenges for Road Safety Research”, Better Safety Results through Information Sharing: A TRB Workshop, Transportation Research Board, Irvine, CA, July 2012.
8. J. Ivan, “Effect of Roadway and Roadside Design Features on Observed Vehicle Speeds”, Transportation for Livable Communities, The Keck Center of the National Academies, Washington, D.C., Oct. 2010.
9. J. Ivan, “First Things First: The Do’s and Don’ts of Study Design and Hypothesis Testing”, Transportation Research Board Annual Meeting, Washington, DC, Jan. 2009.
10. T. Jonsson, J. Ivan and C. Zhang, “Using Land Use Data to Estimate Exposure for Improving Road Accident Prediction,” 32nd International Traffic Records Forum, Palm Desert, CA, Aug. 2006.
11. C. Zhang, J. Ivan and T. Jonsson,”Exposure to Highway Crashes: Definition of a New Measure and Data Needed,” 32nd International Traffic Records Forum, Palm Desert, CA, Aug. 2006.
12. J. Ivan, “FHWA Validation of the Segment Model,” invited presentation to the Highway Safety Manual Task Force midyear meeting, Chicago, Illinois, June 2005.
13. C. Zhang, W. ElDessouki, J. Ivan and E. Anagnostou, “Relative Risk Analysis for Studying the Impact of Adverse Weather Condition on Traffic Accidents,” ITE District One Annual Meeting, Burlington, VT, May 2004.
14. Z. Deng, J. Ivan, C. Zhang, “The Effect of Segment Characteristics on the Severity of Head-on Crashes on Two-lane Rural Highways”, ITE District One Annual Meeting, Burlington, VT, May 2004
15. J. Ivan, “A New Paradigm for Including Traffic Volumes in Crash Rate Analysis and Forecasting,” 29th International Traffic Records Forum, Denver, CO, Jul. 2003.
16. J. Ivan, “USDOT Region 1 (New England) University Transportation Center,” 2002 Transportation Research Showcase, Connecticut Department of Transportation / Connecticut Transportation Institute, Mar. 2002.
17. J. Ivan, “An Empirical Bayesian Analysis of the Safety Benefits of Adding Left Turn Lanes,” 27th International Traffic Records Forum, Jul.-Aug. 2001.
18. X. Qin and J. Ivan, “Crash Prediction Accuracy, Traffic Volumes, and Crash Type Definitions,”27th International Traffic Records Forum, Jul.-Aug. 2001.
19. J. Ivan and P. Ossenbruggen, “Rural Pedestrian Crash Rates: Alternative Measures of Exposure,” 25th International Forum on Traffic Records & Highway Information Systems, Jul. 1999.
20. J. Ivan and C. Wang, “Representing Traffic Exposure for Multi-Vehicle Crash Prediction on Two-Lane Highways,” 25th International Forum on Traffic Records & Highway Information Systems, Jul. 1999.
21. J. Ivan and P. Ossenbruggen, “Safety and the Highway Design Process,” Risk Assessment and Policy Association, 2nd Biennial meeting, Alexandria, VA, Mar.25-26, 1999.
22. J. Ivan, “Predicting Two-Lane Highway Crash Rates Using Land Use and Hourly Exposure,” 24th International Forum on Traffic Records & Highway Information Systems, Jul. 1998.
23. J. Ivan, R. Pasupathy and P. Ossenbruggen, “Evaluating Two-Lane Highway Safety Using Risk Management,” 23rd International Forum on Traffic Records & Highway Information Systems, Jul. 1997.
24. J. Ivan and M. Daskin, “Routing Hazardous Material Shipments to Equalize Population Exposure and Minimize Transportation Costs,” Transportation Research Board Annual Meeting, Washington DC, Jan. 1992.
Invited Academic Seminars
1. “Pedestrian Behavior and Safety at Signalized Intersections with Exclusive and Concurrent Pedestrian Phasing”, invited presentation at University at Buffalo, Jun. 2017.
2. “The Highway Safety Manual: Vision and Implementation”, invited webinar at University of Vermont, Feb. 2014.
3. “Statistical Associations among Roadway and Roadside Characteristics, Vehicle Speeds and Pedestrian Safety with Implications for Road Design”, invited presentation at Florida Atlantic University, Feb. 2013.
4. “Speed and Safety: International Research Findings”, invited presentation at University of Rhode Island, Mar. 2010.
5. “Defining Exposure to Highway Crashes: An International Investigation”, invited presentation at Texas Transportation Institute, May 2003.
6. “Representing Traffic Exposure for Multi-Vehicle Crash Prediction on Two-Lane Highways”, invited presentation at University of Massachusetts Transportation Center, Jul. 1999.
7. “Need and Purpose of the Route 6 Expressway”, panel speaker; Institute of Water Resources 1996-1997 Seminar Series, University of Connecticut, Oct. 9, 1996.
Other Publications
Technical Reports
1. J. Ivan, S. Mamun, N. Ravishanker, B. Persaud, C. Lyon, R.Srinivasan, B. Lan, S. Smith, T. Saleem, M. Abdel-Aty, J. Lee, A. Farid, J. Wang, “Improved Prediction Models for Crash Types and Crash Severities: Final Report”, National Cooperative Highway Research Program, Transportation Research Board, National Research Council, Project NCHRP 17-62, Final Report, Jul. 2018.
2. J. Ivan, N. Ravishanker, R. Townsend, “Social Network Effects on Attitudes about Pedestrian Street Crossing Behavior”, Region 1 University Transportation Center, Final Report, Project UCNR25-33, Mar. 2018.
3. J. Ivan, A. Burnicki, K. Wang, S. Mamun, “Improvements to Road Safety Improvement Selection Procedures For Connecticut”, Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report JHR 16-328, Project 14-1, June. 2016.
4. J. Ivan, N. Ravishanker, “Effectiveness of Interventions at Midblock Crossings for Improving Senior and Other Pedestrian Safety”, Region 1 University Transportation Center, Final Report, Project UCNR24-30A, Dec. 2015.
5. J. Ivan, N. Ravishanker, “Investigation of Road and Roadside Design Elements Associated with Elderly Pedestrian Safety”, Region 1 University Transportation Center, Final Report, Project UCNR24-30, July 2015.
6. N. Ravishanker, J. Ivan, “Project Report: Statistical Modeling of Highway Crash Severity: a Multi-stage Hierarchical Bayesian Multiple-Response Framework”, Final Report, Large Grant, University of Connecticut Research Foundation, April 2015.
7. J. Ivan, N. Ravishanker, M. Islam, V. Serhiyenko, “Evaluation of Surrogate Measures for Pedestrian Safety in Various Road and Roadside Environments”, Center for Transportation and Livable Systems, Final Report, Project CTLS 11-04, University of Connecticut, Oct. 2012.
8. J. Ivan, N. Ravishanker, “Temporal Modeling of Highway Crash Severity by Involved Person Age”, USDOT Region 1 University Transportation Center, Final Report, Project UCNR23-2, July 2012.
9. J. Ivan, N. Ravishanker, E. Jackson, B. Aronov, S. Guo, “Incorporating Wet Pavement Friction into Traffic Safety Analysis”, Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report JHR 10-324, Project 07-5, Nov. 2010.
10. J. Ivan, N. Garrick, G. Hanson, “Designing Roads that Guide Drivers to Choose Safer Speeds”, Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report JHR 09-321, Project 04-6, Nov. 2009.
11. J. Ivan, P. Gårder, “Differences in Gap Acceptance of Elderly Drivers and the Impact on Traffic Simulation Modeling”, USDOT Region 1 University Transportation Center, Final Report, Project UCNR19-10, Nov. 2009.
12. J. Ivan, A. Sadek, “Identification of Crash-Prone Traffic Flow States on Freeways Using Real-Time Surveillance Data”, USDOT Region 1 University Transportation Center, Project UCNR18-6, Nov. 2009.
13. J. Ivan, A. Sadek, H. Zhou, S. Ranade, “Warrants for Exclusive Left Turn Lanes at Unsignalized Intersections and Driveways”, The New England Transportation Consortium, Final Report, NETCR72 Project No. 05-7, Feb. 2009.
14. L. Aultman-Hall, S. Mather, E. Jackson, H. Shin, J. Ivan, “Design and Feasibility Study: Connecticut Transportation Planning Data”, Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report JHR 08-315, Project 05-7, Oct. 2008.
15. J. Ivan, C. Zhang, “Investigation of A New Approach for Representing Traffic Volumes In Highway Crash Analysis And Forecasting”, USDOT Region 1 UTC, Project UCNR17-7, Final Report, Jul. 2008.
16. D. Lord, B. Persaud, S. Washington, J. Ivan, I. van Schalkwyk, C. Lyon, T. Jonsson, S. Geedipally, “Methodology to Predict the Safety Performance of Rural Multilane Highways: Final Report”, National Cooperative Highway Research Program, Transportation Research Board, National Research Council, Project NCHRP 17-29, Final Report, Feb. 2008.
17. J. Ivan, P. Gårder, S. Bindra, T. Jonsson, H. Shin, Z. Deng, “Network-Based Highway Crash Prediction Using Geographic Information Systems”, The New England Transportation Consortium, Final Report, NETCR67 Project No. 04-5, June 2007.
18. J. Ivan, P. Gårder, C. Zhang, Z. Deng, “The Effect of Segment Characteristics on The Severity of Head-On Crashes on Two-Lane Rural Highways,” USDOT Region 1 UTC, Project UCNR15-5, Final Report, Jan. 2006.
19. W. ElDessouki, J. Ivan, E. Anagnostou, A. Sadek, C. Zhang, “Using Relative Risk Analysis to Improve Connecticut Freeway Traffic Safety Under Adverse Weather Conditions,” USDOT Region 1 UTC, Project UCNR14-5, Final Report, Oct. 2004.
20. J. Rimiller, J. Ivan and N. Garrick, “Estimating Benefits from Specific Highway Safety Improvements: Phase III, Safety Benefits from Left Turn Treatment,” Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report, JHR 03-290, Project 97-1(3), Feb. 2003.
21. J. Ivan, W. ElDessouki, M. Zhao, and F. Guo, “Estimating Link Traffic Volumes by Month, Day of Week and Time of Day,” Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report JHR 02-285, Project 99-3, Sep. 2002.
22. J. Ivan, N. Ravishanker, D. Tepas, X. Qin, J. Liu. “Selecting Exposure Measures for Predicting Crash Rates on Two-lane Rural Highways,” Bureau of Transportation Statistics, Transportation Statistics Research Grant Program, USDOT, Grant No. DTTS-00-G-B002-CT, Final Report, Jul. 2002.
23. A. Sadek, W. ElDessouki, J. Ivan, “Incorporating Intelligent Transportation Systems Deployment in Strategic Planning,” USDOT Region 1 UTC, Project UCNR12-8, Final Report, Jul. 2002.
24. A. Sadek, W. ElDessouki, J. Ivan, “Deriving Land-use Limits as a Function of Infrastructure Capacity,” USDOT Region 1 UTC, Project UVMR13-7, Final Report, Jul. 2002.
25. P. Gårder, J. Ivan and J. Du, “Traffic Calming of State Highways: Application New England,” USDOT Region 1 UTC, Project UCNR13-5, Final Report, Jun. 2002.
26. J. Ivan, P. Gårder, S. Zajac, “Finding Strategies to Improve Pedestrian Safety in Rural Areas,” USDOT Region I UTC, Project UCNR12-7, Final Report, Oct. 2001.
27. F. Yuan, J. Ivan, N. Garrick, C. Davis, “Estimating Benefits from Specific Highway Safety Improvements: Phase II Safety Benefits of Intersection Approach Realignment,” Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report, JHR 00-281, Project 97-1(2), Dec. 2000.
28. J. Ivan, P. Ossenbruggen, X. Qin and J. Pendarkar, “Rural Pedestrian Crash Rates: Alternative Measures of Exposure,” USDOT Region I UTC, Project UCNR11-10, Final Report, Jun. 2000.
29. J. Ivan, P. Ossenbruggen, C. Wang and N. Bernardo, “Estimating Benefits from Specific Highway Safety Improvements,” USDOT Region I UTC, Project UCNR10-7, Final Report, Apr. 2000.
30. R. Pasupathy, J. Ivan and P. Ossenbruggen, “Single and Multi-Vehicle Crash Prediction Models for Two-Lane Roadways,” USDOT Region I UTC, Project UCNR9-8, Final Report, Feb. 2000.
31. J. Ivan and S. Allaire, “Estimating the Temporal Distribution of Traffic Within the Peak Period,” Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report, JHR 99-273, Project 97-2, Jan. 2000.
32. F. Yuan, J. Ivan, C. Davis and N. Garrick, “Estimating Benefits from Specific Highway Safety Improvements: Phase I – Feasibility Study,” Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report, JHR 99-268, Project 97-1, May 1999.
33. U. Jha and J. Ivan, “Predicting Peak Period Trips Within the Four-Step Transportation Planning Process,” Connecticut Cooperative Highway Research Program, Connecticut Department of Transportation and University of Connecticut, Final Report, JHR 97-258, Project 96-3, Sep 1997.
34. C. Davis, J. Ivan and G. Campbell, “Application of Multi-Criteria Decision-Making and Risk Analysis to Congestion Management,” Connecticut Cooperative Highway Research Program, Final Report, JHR 96-252, Project 95-1, Sep. 1996.
35. F. Koppelman, V. Sethi and J. Ivan, “Calibration of Data Fusion Algorithm Parameters with Simulated Data,” ADVANCE Project Technical Report TRF-ID-152, The Transportation Center, Northwestern University, Evanston, Illinois, Mar. 1994.
36. F. Koppelman, J. Schofer, N. Bhandari, V. Sethi and J. Ivan, “Calibration of Probe and Fixed Detector Algorithm Parameters with Simulated Data,” ADVANCE Project Technical Report TRF-ID-151, The Transportation Center, Northwestern University, Evanston, Illinois, Feb. 1994.
37. J. Ivan and C. Bhat, “The ADVANCE Demonstration Incident Detection System: Data Fusion Process Structure and Plans for Calibration,” ADVANCE Project Technical Report, Task TRF-ID-10, Northwestern University Transportation Center, May 1993.
38. P. Liu, J. Schofer and J. Ivan, “Anecdotal Incident Detection Algorithm Northwest Central Dispatch Preprocessor,” Northwestern University Transportation Center, May 1993.
39. J. Schofer, J. Ivan and C. Bhat, “Plans for Collecting Incident Detection Development Data,” ADVANCE Program Technical Report, Northwestern University Transportation Center, Jan. 1993.
40. J. Ivan, J. Schofer, C. Bhat, N. Rouphail and N. Thomas, “Data Needs for Incident Detection,” ADVANCE Program Technical Report, Northwestern University Transportation Center, Jun. 1992.
41. J. Ivan, C. Bhat and J. Schofer, “Automatic Incident Detection on Urban Arterials: A System Conceptualization,” ADVANCE Program Technical Report, Northwestern University Transportation Center, May 1992.
42. J. Ivan, “Automatic Incident Detection on Urban Arterials: a Literature Review,” ADVANCE Program Technical Report, Northwestern University Transportation Center, Dec. 1991.
Ph.D. Dissertation and M.S. Thesis
1. J. Ivan, Real-Time Data Fusion for Arterial Street Incident Detection Using Neural Networks, Ph.D. Dissertation, Northwestern University, Jun. 1994.
2. J. Ivan, CAPES: A Cafeteria Architectural Planning Expert System, M.S.C.E. Thesis, Massachusetts Institute of Technology, Feb. 1987.