STEPHANE HESS

DECISIONS project (ERC consolidator grant 615596)

The DECISIONS project was a consolidator grant (615596) funded by the European Research Council, with a follow-up Proof of Concept grant (POC Apollo, 875692).

The project, led by Professor Stephane Hess at the University of Leeds started on 1 July 2014 and ended in December 2020. Over the years, the team for the DECISIONS project included Dr Chiara Calastri (as PhD student 2014-2017, and as PDRA 2017-2020), Dr Romain Crastes dit Sourd (as PDRA, 2015-2019), Dr Thomas Hancock (as PhD student 2016-2019, and as PDRA 2019-2020), Dr David Palma (as PDRA, 2017-2020) and Miss Martyna Bogacz (as PhD student 2017-2020). Two senior staff also participated in the project, Dr Charisma Choudhury (2014-2019) and Dr Thijs Dekker (2014-2016).

The project has been highly successful, with a very large number of journal papers, the development of the Apollo software, the collection of a unique dataset, the completion of three exciting PhD projects, and the award of four important prizes for research.

GO TO AWARDS

GO TO SOFTWARE AND DATA

GO TO WORKING PAPERS

GO TO JOURNAL PAPERS

AWARDS

• January 2021 - Thomas Hancock: 2019 Eric Pas prize for the best PhD thesis in the field of Travel Behaviour Research, International Association for Travel Behaviour Research
• August 2019 - Award for the most innovative application of choice modelling, named in honour of Andrew Daly (Thomas Hancock, Stephane Hess & Charisma Choudhury, “Quantum rotation: a new method for capturing a change of perspective”), 6th International Choice Modelling Conference, Kobe
• July 2018 - Chiara Calastri: 2017 Eric Pas prize for the best PhD thesis in the field of Travel Behaviour Research, International Association for Travel Behaviour Research
• April 2017 - Award for the most innovative application of choice modelling, named in honour of Andrew Daly (Marek Giergiczny and Stephane Hess, “Using advanced choice models to study animal behaviour”), 5th International Choice Modelling Conference, Cape Town
• April 2017 - Thomas Hancock: Best PhD paper “Decision field theory: improvements to current methodology and contrasts with standard choice modelling techniques”, 5th International Choice Modelling Conference, Cape Town

SOFTWARE AND DATA

• For full details on the Apollo software, please visit www.ApolloChoiceModelling.com
• The data collected in the DECISIONS project is available for download.

• For details on the survey, please see Calastri, C., Crastes dit Sourd, R. & Hess, S. (2020), We want it all: experiences from a survey seeking to capture social network structures, lifetime events and short-term travel and activity planning, Transportation, 47(1), 175-201. (pdf,survey script,appendix)

SELECTED WORKING PAPERS

• Amaris, G., Dawson, R., Gironás, J., Hess, S. & Ortúzar, J. de D., From mathematical models to policy design: a multi-component assessment framework to analyse residential greywater reuse preferences (pdf)
• Beck, M. & Hess, S., Stability of Preferences and Attitudes: Hybrid Model of Air Travel Preferences at Two Different Points in Time (pdf)
• Capurso, M., Hess, S. & Dekker, T., Stated Consideration and Attribute Thresholds in Mode Choice Models: a Hierarchical ICLV Approach (pdf)
• Choudhury, C.F., Hess, S. and Oakil, A.T., Peek at the Future: Capturing Anticipation Effects in Discrete Choice Models (pdf)
• Crastes dit Sourd, R., Dubernet, I., Beck, M., Hess, S., Holz-Rau, C., Scheiner, J., A dynamic approach to car availability throughout the life course. (pdf)
• Crastes dit Sourd, R., Palma, D., Hess, S., Daly, A., Holz-Rau, C. & Scheiner, J., Weighting strategies for modelling life course history events via pairwise composite marginal likelihood. (pdf)
• Crastes dit Sourd, R., Sandorf, E. & Hess, S., Choosing fast and slow: connecting response time to decision rules (pdf)
• Crastes dit Sourd, R., Börjesson, M., Hess, S. & Hensher, D., Preference Instability in stated choice surveys: more evidence (pdf)
• Daly, A., Hess, S. & Ortuzar, J. de D. Estimating willingness-to-pay from discrete choice models: setting the record straight (pdf)
• Hancock, T., Hess, S. & Choudhury, C., Theoretical considerations for a dynamic model for dynamic data: bridging choice modelling with mathematical psychology (pdf)
• Hancock, T. & Hess, S., What is really uncovered by mixing different model structures: contrasts between latent class and model averaging (pdf)
• Hancock, T.O., Hess, S., Marley, A. & Choudhury, C.F., An accumulation of preference: two alternative dynamic models for understanding transport choices (pdf)
• Hancock, T.O., Hess, S. and Choudhury, C.F., A careful respondent or an uncertain response: disentangling confounding sources of increased deliberation time using Decision Field Theory (pdf)
• Hess, S., Daly, A.J., Daziano, R. & Bliemer, M., Statistical signicance in choice modelling: a commentary on the use of condence intervals, t-ratios, p-values and star measures (pdf)
• Huan, N., Hess, S. & Yao, E., Revealing Public Attitudes Towards Demand Management Practices in Overcrowded Metro Systems: A Loyalty Measurement Perspective (pdf)
• Huan, N., Yao, E., Hess, S. & Liu, W., Bi-level Optimisation of Differential Pricing Strategies for Oversaturated Metro Systems (pdf)
• Fayyaz, M., Bliemer, M., Beck, M., Hess, S. & van Lint, H., Route Choice Behaviour: Stated Choices and Simulated Experiences (pdf)
• Ibraimovic, T., Hess, S., Zuidgeest, M. & Moyo, H., Ethnic segregation and residential location choice in Cape Town (pdf)
• Kostica, B., Crastes dit Sourd, R., Hess, S., Scheiner, J., Holz-Rau, C. & Pereira, F., Uncovering life-course patterns with causal discovery and survival analysis (pdf)
• Lu, H., Hess, S., Daly, A., Patruni, B., Rohr & Vuk, G., Using state-of-the-art models in applied work: travellers willingness to pay for a toll tunnel in Copenhagen (pdf)
• Palma, D., Crastes dit Sourd, R., Calastri, C., Hess, S. and O'Neill, V., Can information really change travel behaviour? Controlling for endogeneity in modelling the effect of feedback information (pdf)
• Palma, D., Enam, A., Hess, S., Calastri, C. & Crastes dit Sourd, R., Modelling multiple occurrences of activities during a day: an extension of the MDCEV model (pdf)
• Palma, D. & Hess, S., Some adaptations of Multiple Discrete-Continuous Extreme Value (MDCEV) models for a computationally tractable treatment of complementarity and substitution effects, and reduced influence of budget assumptions (pdf)
• Palma, D, Hess, S., Guevara, A., Rizzi, L.I., Ortúzar, J. de D. & Casaubon, G., When expensive is good: Addressing price-quality association in choice modelling. (pdf)
• Palma, D, Ortúzar, J. de D., Rizzi, L.I., Hess, S., Calastri, C., Modelling food and beverages purchase process combining sensory science and advanced discrete choice: A wine case study (pdf)
• Song, F., Hess, S. & Dekker, T., Fancy sharing an air taxi? Uncovering the impact of variety seeking on the demand for new shared mobility services (pdf)
• Tjiong, J., Hess, S., Dekker, T., Giergiczny, M. & Ojeda Cabral, M., Capturing zero-price effects in stated choice surveys and implications for willingness-to-pay computation (pdf)
• Tjiong, J., Dekker, T., Hess, S. & Ojeda Cabral, M., Analysing the impact of income measures on the cross-sectional income elasticity of the value of travel time and the implications for transport appraisal (pdf)
• Tsoleridis, P., Choudhury, C.F. & Hess, S. (2019), Capturing Heterogeneity in Mode Choice Decisions: Comparing and Combining Machine Learning and Discrete Choice Models (pdf)
• Wang, S., Mo, B., Hess, S. & Zhao, J., Comparing hundreds of machine learning classiers and discrete choice models in predicting travel behavior: an empirical benchmark (pdf)
• Webb, E.D. & Hess, S., Joint modelling of choice and rating data: theory and examples (pdf)

JOURNAL PAPERS

• Webb, E.J.D., Meads, D., Lynch, Y., Judge, S. Randall, N., Goldbart, J., Meredith, S., Moulam, L., Hess, S. & Murray, J. (2021), Attribute selection for a discrete choice experiment incorporating a best-worst scaling survey, Value in Health, forthcoming. (pdf)
• Bwambale, A., Choudhury, C., Hess, S., Iqbal, S. (2021), Getting the best of both worlds - a framework for combining disaggregate travel survey data and aggregate mobile phone data for trip generation modelling, Transportation, forthcoming (pdf)
• Song, F., Hess, S. and Dekker, T. (2021), A joint model for stated choice and best worst scaling data using latent attribute importance: application to high speed rail, Transportmetrica A, forthcoming (pdf)
• Bogacz, M., Hess, S., Choudhury, C., Calastri, C., Mushtaq, F., Awais, M., Nazemi, M., van Eggermondd, M. & Erath, A. (2021), Cycling in virtual reality: modelling behaviour in an immersive environment, Transportation Letters, forthcoming (pdf)
• Amaris, G., Hess, S., Gironás, J. & J. & Ortúzar, J. de D. (2021), Capturing and analysing heterogeneity in residential greywater reuse preferences using a latent class model, Journal of Environmental Management, 279, 111673. (pdf)
• Hess, S., Meads, D., Twiddy, M., Mason, S., Czosky-Murray, C. & Minton, J. (2021), Characterising heterogeneity and the role of attitudes in patient preferences: a case study in preferences for outpatient parenteral intravenous antimicrobial therapy (OPAT) services, Journal of Choice Modelling, 38, 100252 (pdf)
• Buckell, J., Hensher, D.A. & Hess, S. (2021) Kicking the habit is hard: a hybrid choice model investigation into the role of addiction in smoking behaviour, Health Economics, 30(1), pp. 3-19. (pdf)
• Paschalidis, E., Choudhury, C.F. and Hess, S. (2021), Improving the Transferability of Car-Following Models Between Driving Simulator and Field Traffic, Journal of Transportation Engineering, Part A: Systems, 147(1), art. no. 468. (pdf)
• Amaris, G., Hess, S., Gironás, J. & J. & Ortúzar, J. de D. (2021), Using hybrid choice models to capture the impact of attitudes on residential greywater reuse preferences, Resources, Conservation & Recycling, 164, 10517 (pdf)

• Murray, J., Lynch, Y., Goldbart, J., Moulam, L., Judge, S., Webb, E., Jayes, M., Meredith, S., Whittle, H., Randall, N., Meads, D. & Hess, S. (2020), The decision-making process in recommending electronic communication aids for children and young people who are non-speaking: the I-ASC mixed-methods study. Health Services and Delivery Research 2020, 8(45). (pdf)
• Bogacz, M., Hess, S., Calastri, C., Choudhury, C.F., Erath, A., van Eggermond, M., Mustaq, F., Nazemi, M. & Awais, M. (2020), A Comparison of Cycling Behaviour between Keyboard-Controlled and Instrumented Bicycle Experiments in Virtual Reality, Transportation Research Record, 2674 issue: 7, page(s): 244-257. (pdf)
• Haque, M., Choudhury, C. & Hess, S., Understanding differences in residential location preferences between ownership and renting: a case study of London, Journal of Transport Geography, 88, 102866. (pdf)
• Konstantinus, A., Zuidgeest, M., Hess, S. & de Jong, G. (2020), Assessing Inter-Urban Freight Mode Choice Preference for Short-sea Shipping in the Southern African Development Community Region, Journal of Transport Geography, 88, 102816. (pdf)
• Amaris, G., Dawson, R., Gironás, J., Hess, S. & J. & Ortúzar, J. de D. (2020), Understanding the preferences for different types of urban greywater uses and the impact of qualitative attributes, Water Research, 184, 116007 (pdf)
• Hancock, T., Hess, S., Daly, A.J. & Fox, J. (2020), Using a sequential latent class approach for model averaging: benefits in forecasting and behavioural insights, Transportation Research Part A, 139, pp. 429-454 (pdf)
• Hancock, T., Broekaert, J., Hess, S. & Choudhury, C. (2020), Quantum choice models: a flexible new approach for understanding moral decision-making, Journal of Choice Modelling, Journal of Choice Modelling, 37, 100235 (pdf)
• Hancock, T., Broekaert, J., Hess, S. & Choudhury, C. (2020), Quantum probability: a new method for modelling travel behaviour, Transportation Research Part B, 139, pp. 165-198. (pdf)
• Calastri, C., Crastes Dit Sourd, R., Hess, S. & Palma, D. (2020), Capturing relationship strength: a choice model for leisure time, frequency of interaction and ranking in name generators, Travel Behaviour and Society, 20, 290-299. (pdf)
• Hess, S., Daly, A.J. & Börjesson, M. (2020), A Critical Appraisal of Use of Simple Time-Money Trade-Offs for Appraisal Value of Time Measures, Transportation, 47, 1541–1570. (pdf)
• Calastri, C., Hess, S., Pinjari, A. and Daly, A. (2020), Accommodating correlation across days in multiple-discrete continuous models for time use, Transportmetrica B, 8, 108-128. (pdf)
• Daly, A. & Hess, S. (2020), VTT or VTTS: a note on terminology for value of travel time work, Transportation, 47, 1359-1364. (pdf)
• Hess, S., Choudhury, C.F., Bliemer, M. and Hibberd, D. (2020), Modelling Lane-Changing Behaviour in Approaches to Roadworks: Contrasting and Combining Driving Simulator Data with Stated Choice Data, Transportation Research Part C, 112, 282–294. (pdf)
• Calastri, C., Crastes dit Sourd, R. & Hess, S. (2020), We want it all: experiences from a survey seeking to capture social network structures, lifetime events and short-term travel and activity planning, Transportation, 47(1), 175-201. (pdf,survey script,appendix)
• Bergantino, A.S., Capurso & Hess, S. (2020), Modelling regional accessibility to airports using discrete choice models: An application to a system of regional airports, Transportation Research Part A, 132, 855-871. (pdf)
• Crastes Dit Sourd, R, Beaumais, O, Mahieu, P.A, Martinez-Camblor, P & Scarpa, R (2020). A Contingent Valuation Test for Measuring the Construct Validity of Willingness-to-pay Estimates derived from choice-experiments. Land Economics, forthcoming. (pdf)

• Bergantino, A.S., Capurso, M., Dekker, T. & Hess, S. (2019), Allowing for heterogeneity in the consideration of airport access modes: the case of Bari airport, Transportation Research Record, 2673(8), 50-61. (pdf)
• Webb, E.D, Meads, D., Lynch, Y., Randall, N., Judge, S., Goldbart, J., Meredith, S., Moulam, L. Hess, S. & Murray, J. (2019), Finding the best fit: A discrete choice experiment on the decision making of augmentative and assistive technology professionals working with children, BMJ Open, 9(11), doi:10.1136/bmjopen-2019-030274 (pdf)
• Bwambale, A., Choudhury, C. & Hess, S., Modelling departure time choice using mobile phone data, Transportation Research Part A, 130, Pages 424-439. (pdf)
• Haque, Md B., Choudhury, C.F., Hess, S. & Crastes dit Sourd, R. (2019), Modelling residential mobility decision and its impact on car ownership and travel mode, Travel Behaviour and Society, Volume 17, October 2019, Pages 104-119. (pdf)
• Hess, S. & Palma, D. (2019), Apollo: a flexible, powerful and customisable freeware package for choice model estimation and application, Journal of Choice Modelling, 32, September 2019, 100170. (pdf)
• Haque, M.D., Choudhury, C.F. & Hess, S. (2019), Modelling Residential Location Choices with Implicit Availability of Alternatives, Journal of Transport and Land Use, 12(1), pp. 597–618. (pdf)
• Capurso, M., Hess, S. & Dekker, T. (2019), Modelling the role of consideration of alternatives in mode choice: An application on the Rome-Milan corridor, Transportation Research Part A, 129, November 2019, Pages 170-184. (pdf)
• Bwambale, A., Choudhury, C.F. and Hess, S. (2019), Modelling long-distance route choice using mobile phone call detail record data: A case study of Senegal, Transportmetrica A, 15(2), pp. 1543-1568. (pdf)
• Paschalidis, E., Choudhury, C.F. & Hess, S. (2019), Combining driving simulator and physiological sensor data in a latent variable model to incorporate the effect of stress in car-following behaviour, Analytic Methods in Accident Research, 22, 100089. (pdf)
• Webb, E.J.D., Meads, D., Lynch, Y., Randall, N., Judge, S., Goldbart, J., Meredith, S., Moulam, L., Hess, S. & Murray, J. (2019), What’s Important in AAC Decision Making for Children? Evidence from a Best-worst Scaling Survey, Augmentative and Alternative Communication, 35(2), pp. 80-94. (pdf)
• Bwambale, A., Choudhury, C.F. & Hess, S. (2019), Modelling trip generation using mobile phone data: a latent demographics approach, Journal of Transport Geography, 76, Pages 276-286. (pdf)
• Calastri, C., Hess, S., Choudhury, C.F., Daly, A.J. & Gabrielli, L. (2019), Mode choice with latent availability and consideration: theory and a case study, Transportation Research Part B, 123, pp. 374-385. (pdf)
• Buckell, J. & Hess, S. (2019), Stubbing out hypothetical bias: improving tobacco market predictions by combining stated and revealed preference data, Journal of Health Economics, 65, pp. 93-102. (pdf)
• Guevara, C.A. and Hess, S. (2019), A control-function approach to correct for endogeneity in discrete choice models estimated on SP-off-RP data and contrasts with an earlier FIML approach by Train & Wilson, Transportation Research Part B, 123, pp. 224-239. (pdf)
• Dada, M., Zuidgeest, M. and Hess, S. (2019), Modelling pedestrian crossing choice behaviour on Cape Town freeways: caught between a rock and a hard place?, Transportation Research Part F, 60, pp. 245-261. (pdf)
• Hess, S. & Börjesson, M. (2019), Understanding attitudes towards congestion pricing: a latent variable investigation with data from four cities, Transportation Letters, 11(2), pp. 63-77. (pdf)

• Tjiong, J., Hess, S., Dekker, T. and Ojeda-Cabral, M. (2018), Impact of travel time constraints on taste heterogeneity and non-linearity in simple time-cost trade-offs, Transportation Research Record, 2672(49) 135–145. (pdf)
• Calastri, C., Hess, S., Daly, A., Carrasco, J. and Choudhury, C.F. (2018), Modelling the loss and retention of contacts in social networks: the role of dyad- level heterogeneity and tie strength, Journal of Choice Modelling, 29, pp. 63-77. (pdf)
• Paschalidis, E., Choudhury, C.F. and Hess, S., Modelling the effects of stress on gap-acceptance decisions combining data from driving simulator and physiological sensors, Transportation Research Part F, 59(A), pp.418-435. (pdf)
• Song, F., Hess, S. and Dekker, T. (2018), Accounting for the impact of variety-seeking: theory and application to HSR-air intermodality in China, Journal of Air Transport Management, 69, pp. 99-111. (pdf)
• Hess, S. & Spitz, G., Bradley, M. & Coogan, M., Analysis of mode choice for intercity travel: application of a hybrid choice model to two distinct US corridors, Transportation Research Part A, 116, pp. 547-567. (pdf)
• Hess, S., Daly, A.J. & Batley, R. (2018), Revisiting consistency with random utility maximisation: theory and implications for practical work, Theory and Decision, 84(2), pp. 181-204. (pdf)
• Ibraimovic, T. & Hess, S. (2018), A Latent Class Model of Residential Choice Behaviour and Ethnic Segregation Preferences, Housing Studies, 33, pp. 544-564. (pdf)
• Hancock, T.O., Hess, S. & Choudhury, C.F. (2018), Decision field theory: improvements to current methodology and comparisons with standard choice modelling techniques, Transportation Research Part B, 107, pp. 18-40. (pdf)
• Crastes dit Sourd, R., Zawojska, E., Mahieu, P.A. & Louviere, J. (2018), Mitigating strategic misrepresentation of values in open-ended stated preference surveys by using negative reinforcement, Journal of Choice Modelling, 28, pp. 153-166. (pdf)
• Sandorf, E. D., Crastes dit Sourd, R., & Mahieu, P. A. (2018). Journal of Choice Modelling, 29, pp. 113-132 (pdf)

• Mahieu, P.A., Andersoon, H., Beaumais, O., Crastes, R., Hess, S. & Wolff, F-C. (2017), Stated preferences: a unique database composed of 1,657 recent published articles in journals related to agriculture, environment or health, Review of Agricultural, Food and Environmental Studies, 98(3), pp. 201-220. (pdf)
• Calastri, C., Hess, S., Daly, A.J. & Carrasco, J.A. (2017), Does the social context help with understanding and predicting the choice of activity type and duration? An application of the Multiple Discrete-Continuous Nested Extreme Value model to activity diary data, Transportation Research Part A, 104, pp. 1-20. (pdf)
• Giergiczny, M., Dekker, T., Hess, S. & Chintakayala, P. (2017), Testing the stability of utility parameters in repeated best, repeated best-worst and one-off best-worst studies, European Journal of Transport and Infrastructure Research, 17(4), pp. 457-476. (pdf)
• Hess, S. & Train, K.E. (2017), Correlation and scale in mixed logit models, Journal of Choice Modelling, 23, pp. 1-8. (pdf,appendix)
• Hess, S., Murphy, P., Le, H. & Leong, W.Y. (2017), Estimation of new monetary valuations of travel time, quality of travel and safety for Singapore, Transportation Research Record, 2664, pp. 79–90. (pdf)
• Beck, M.J., Hess, S., Ojeda Cabral, M. & Dubernet, I. (2017), Valuing travel time savings: a case of short-term or long-term choices?, Transportation Research Part E, 100, pp. 133-143. (pdf)
• Calastri, C., Hess, S., Daly, A.J., Maness, M. Kowald, K., Axhausen , K.W. (2017), Modelling contact mode and frequency of interactions with social network members using the multiple discrete-continuous extreme value model, Transportation Research Part C, 76, pp. 16-34. (pdf,appendix)
• Lu, H., Hess, S., Daly, A.J. & Rohr, C. (2017), Measuring the impact of alcohol multi-buy promotions on consumers’ purchase behaviour, Journal of Choice Modelling, 24, pp. 75-95. (pdf)
• Ibraimovic, T. & Hess, S. (2017), Changes in the ethnic composition of neighbourhoods: Analysis of household's response and asymmetric preference structures, Papers in Regional Science, 96(4), pp. 759–784. (pdf)
• Hess, S., Daly, A., Dekker, T., Ojeda Cabral, M. & Batley, R.P. (2017), A framework for capturing heterogeneity, heteroskedasticity, non-linearity, reference dependence and design artefacts in value of time research , Transportation Research Part B, 96, pp. 126–149. (pdf)

• Daly, A.J., Dekker, T. & Hess, S. (2016), Dummy coding vs effects coding for categorical variables: clarifications and extensions, Journal of Choice Modelling, 21, pp. 36-41. (pdf)
• Pedersen, L.B., Kjaer, T. & Hess, S. (2016), Asymmetric information and user orientation in general practice. Exploring the agency relationship in a best-worst scaling study, Journal of Health Economics, Journal of Health Economics 50, pp. 115-130. (pdf)
• Batley, R.P. & Hess, S. (2016), Testing for regularity and stochastic transitivity using the structural parameter of nested logit, Transportation Research Part B, 93, pp. 355-376. (pdf)
• Beck, M. & Hess, S. (2016), Willingness to Accept Longer Commutes for Better Salaries: Understanding the Differences Within and Between Couples, Transportation Research Part A, 91, pp. 1-16. (pdf)
• Dekker, T., Hess, S., Brouwer, R. & Hofkes, M. (2016), Decision uncertainty in multi-attribute stated preference studies, Resource and Energy Economics, 43, pp. 57-73. (pdf)