Institute for Transport Studies (ITS)

Staff photo

Professor Stephane Hess

Professor of Choice Modelling / Director of the Choice Modelling Centre (CMC)

Honorary Professor, Institute of Transport and Logistics Studies, University of Sydney

Phone: +44 (0)113 34 36611
Room: 2.07
Email: s.hess@its.leeds.ac.uk_
Research Group: Choice Modelling

Link to personal website (with full CV and downloads for all journal papers)

Key Research Interests

  • Advanced discrete choice models
  • Data for choice modelling
  • Heterogeneity in preferences
  • Travel behaviour research

Current positions

  • 05/2014 - present: Director of the Choice Modelling Centre (CMC), University of Leeds
  • 10/2012 - present: Professor of Choice Modelling, Institute for Transport Studies, University of Leeds
  • 05/2011 - present: Honorary Professor, Institute of Transport and Logistics Studies, University of Sydney
  • 04/2014 - 04/2017: Affiliated Professor in Demand Analysis, KTH Royal Institute of Technology in Stockholm
  • 05/2014 - present: Director, RSG inc, www.rsginc.com

Past positions (selection - see CV for full list)

  • 03/2010 - 10/2012: Reader in Choice Modelling, Institute for Transport Studies, University of Leeds
  • 05/2008 – 03/2010: Principal Research Fellow, Institute for Transport Studies, University of Leeds
  • 12/2006 – 12/2007: Research Fellow, Centre for Transport Studies, Imperial College London
  • 01/2006 – 12/2007: Senior Researcher, Institute for Traffic Planning and Transport Systems, Swiss Federal Institute of Technology Zurich (ETH)

Education

  • PhD, “Advanced discrete choice models with applications to transport demand”, Imperial College London, Centre for Transport Studies, September 2005
  • MPhil in Statistical Science, University of Cambridge, Queens' College & Statistical Laboratory, July 2002

Professional Engagements (selection - see CV for full list)

  • Editor-in-chief (founding) of the Journal of Choice Modelling (http://www.journals.elsevier.com/journal-of-choice-modelling/)
  • Founding chair of the International Choice Modelling Conference series (www.icmconference.org.uk)
  • Member of the Editorial Advisory Board (EBA) of Transportation Research B
  • Member of the Editorial Advisory Board (EBA) of Transportation
  • Member of the Transportation Demand Forecasting committee, TRB
  • Member of the Travel Behaviour and Values committee, TRB

Awards, prizes & fellowships (see CV for full list, including awards to students)

  • January 2014, Outstanding Young Member of the Transportation Research Board (TRB), For exceptional achievements in transportation research, policy, or practice and service to TRB, Transportation Research Board of North America
  • October 2010: Fred Burggraf Award for excellence in transportation research by researchers 35 years of age or younger (with James Fox), Transportation Research Board
  • October 2008: Leverhulme Early Career Fellowship, Leverhulme Trust
  • August 2006: Eric Pas prize for the best PhD thesis in the field of Travel Behaviour Research, International Association for Travel Behaviour Research

Stephane's area of work is the analysis of human decision using advanced discrete choice models. He is active in the fields of transport, health and environmental economics, and has made contributions to the state of the art in the specification, estimation and interpretation of such models, notably in a valuation of travel time context, where has led the modelling on the most recent UK and German national studies, as well as the reestimation of the Swiss study.

He has published widely (over 70 peer reviewed journal papers in the last 10 years) and has been involved as a principal or co-investigator in academic projects with a combined income generation of over £8.5M.

In his current work, he is looking at bridging the gap between behavioural science and mathematical modelling of human decision making.

His contributions have been recognised for example by the 2014 Outstanding Young Member of the Transportation Research Board (TRB) award for exceptional achievements in transportation research, policy, the 2010 Fred Burggraf award handed out by the Transportation Research Board, the 2005 Eric Pas award for the best PhD thesis in the area of travel behaviour modelling, and the 2004 Neil Mansfield award handed out by the Association for European Transport.

He is also the founding editor in chief of the Journal of Choice Modelling and the founder and steering committee chair of the International Choice Modelling Conference.

Teaching in Leeds

TRAN5282: Masters module on "Choice modelling and stated preference survey design"

Teaching outside of Leeds

Taught on courses on choice modelling and survey design at Imperial College London, ETH Zurich, Tainan University and the University of Cape Town as well as a large number of commercial courses.

Papers

Books

  • (2013) Choice Modelling: the state-of-the-art and the state-of-practice, Edward Elgar publishers.

Book Chapters

  • Hess S (2014) Latent class structures: Taste heterogeneity and beyond, Handbook of Choice Modelling, pp.311-329. doi: 10.4337/9781781003152.00021
  • Daly A; Hess S; Eckert C (2013) Workshop report: working with repeated choice data, pp.91-106.
  • Marsden G; Hess S (2012) The scope for and potential impacts of the adoption of electric vehicles in uk surface transport, The Future of Electricity Demand: Customers, Citizens and Loads, pp.212-228. doi: 10.1017/CBO9780511996191.013
  • Hess S; Polak JW (2010) Airport choice behaviour: findings from three separate studies, In: Forsyth P; Gillen D; M ller J; Niemeier H-M (Ed) Airport Competition: The European Experience, Ashgate, Aldershot, pp.177-196-177-196.
  • Abou-Zeid M; Ben-Akiva M; Bierlaire M; Choudhury C; Hess S (2010) Attitudes and Value of Time Heterogeneity, In: Van de Voorde E; Vanelslander T (Ed) Applied Transport Economics - A Management and Policy Perspective, De Boeck Publishing, pp.523-545-523-545.
  • Campbell D; Hess S; Scarpa R; Rose JM (2010) Accommodating Coefficient Outliers in Discrete Choice Modelling: A Comparison of Discrete and Continuous Mixing Approaches, In: Hess S; Daly AJ (Ed) Choice Modelling: the state-of-the-art and the state-of-practice; Proceedings from the Inaugural International Choice Modelling Conference, Emerald, Bingley, pp.331-352-331-352.
  • Chintakayala PK; Hess S; Rose JM; Wardman MR (2010) Effects of Stated Choice Design Dimensions on Model Estimates, In: Hess S; Daly AJ (Ed) Choice Modelling: the state-of-the-art and the state-of-practice; Proceedings from the Inaugural International Choice Modelling Conference, Emerald, Bingley, pp.195-216-195-216.
  • Hess S (2010) Modelling air travel choice behaviour, In: Forsyth P; Gillen D; M ller J; Niemeier H-M (Ed) Airport Competition: The European Experience, Ashgate, Aldershot, pp.151-176-151-176.
  • Hess S (2010) Theory and practice in modelling air travel choice behaviour, In: Postorino MN (Ed) Regional airport development, Wessex Institute of Technology Press, Southampton, pp.109-126-109-126.
  • Hess S; Polak JW (2009) Mixed Logit Modelling of Parking Type Choice Behaviour, In: Sloboda B (Ed) Transportation Statistics, J.D. Ross Publishing, pp.77-102-77-102.
  • Hess S; Polak JW; Bierlaire M (2005) Functional approximations to alternative-specific constants in time-period choice-modelling, In: Mahmassani HS (Ed) Transportation and Traffic Theory: Flow, Dynamics and Human Interaction, Proceedings of the 16th International Symposium on Transportation and Traffic Theory, Elsevier, Amsterdam, pp.545-564-545-564.
  • Hess S; Bierlaire M; Polak JW (2005) Capturing taste heterogeneity and correlation structure with Mixed GEV models, In: Scarpa R; Alberini A (Ed) Applications of Simulation Methods in Environmental and Resource Economics, Springer Publisher, Dordrecht, The Netherlands, pp.55-76-55-76.

Reports

Conference Papers

  • Nadudvari T; Liu R; Hess S (2015) Modelling passengers' route choice behaviour on the London Underground, .
  • Fu Q; Liu R; Hess S (2014) A Bayesian modelling framework for individual passengers� probabilistic route choices: A case study on the London Underground, 93rd Annual Meeting of the Transportation Research Board, Washington, D.C. .
  • Hess S; Shires J; Jopson A (2013) Accommodating underlying pro-environmental attitudes in a rail travel context: Application of a latent variable latent class specification, Transportation Research Part D: Transport and Environment 25, pp.42-48. doi: 10.1016/j.trd.2013.07.003
  • Hess S; Hensher DA (2013) Making use of respondent reported processing information to understand attribute importance: A latent variable scaling approach, Transportation 40, pp.397-412. doi: 10.1007/s11116-012-9420-y
  • Hess S; Rose JM (2012) Can scale and coefficient heterogeneity be separated in random coefficients models?, Transportation 39, pp.1225-1239. doi: 10.1007/s11116-012-9394-9
  • Fu Q; Liu R; Hess S (2012) A review on transit assignment modelling approaches to congested networks: a new perspective, PROCEEDINGS OF EWGT 2012 - 15TH MEETING OF THE EURO WORKING GROUP ON TRANSPORTATION 54, pp.1145-1155. doi: 10.1016/j.sbspro.2012.09.829
  • Fu Q; Liu R; Hess S (2012) On considering journey time variability and passengers’ path choice: An empirical study using Oyster card data on the London Underground, 5th International Symposium on Transportation Network Reliability, Hong Kong .
  • Hess S; Marsden G; Shires J; Jopson A; Muir H (2010) Analysing rail travellers' desire for reducing carbon emissions from personal travel, Transportation Research Board 89th Annual Meeting .
  • Hess S; Ryley T; Davison L; Adler T (2010) Improving Quality of Demand Forecasts Through Cross-Nested Logit: Stated-Choice Case Study of Airport, Airline, and Access Mode Choice, 89th Annual Meeting of the Transportation Research Board .
  • Fox J; Hess S (2010) Review of Evidence for Temporal Transferability of Mode-Destination Models, 89th Annual Meeting of the Transportation Research Board .
  • Hess S; Stathopoulos A (2010) Linking response quality to survey engagement: a combined random scale and latent variable approach, European Transport Conference, Glasgow, October 2010. .
  • Orr S; Hess S; Sheldon R (2010) Consistency and Fungibility of Monetary Valuations in Transport, European Transport Conference, Glasgow, October 2010. .
  • Campbell D; Hess S (2010) Preference heterogeneity and attribute non-attendance: can they be separated?, European Transport Conference, Glasgow, October 2010. .
  • Campbell D; Hess S (2010) Outlying sensitivities in discrete choice data: consequences and remedies, fourth World Congress of Environmental and Resource Economists, Montreal. .
  • Hess S; Rose JM (2009) Should reference alternatives in pivot design SC surveys be treated differently?, TRB 88th Annual Meeting Compendium of Papers DVD .
  • Hess S; Daly A (2009) Calculating Errors for Measures Derived From Choice Modeling Estimates, TRB 88th Annual Meeting Compendium of Papers DVD .
  • Hess S; Ben-Akiva M; Gopinath D; Walker J (2009) Taste heterogeneity, correlation and elasticities in latent class choice models, Inaugural International Choice Modelling Conference, Harrogate. .
  • Campbell D; Hess S; Scarpa R; Rose JM (2009) Using finite mixture models to accommodate preference outliers in discrete choice modelling, Inaugural International Choice Modelling Conference, Harrogate. .
  • Chintakayala PK; Hess S; Rose JM; Wardman MR (2009) Effects of stated choice design dimensions on estimates, Inaugural International Choice Modelling Conference, Harrogate. .
  • Hess S; Rose JM (2009) Some lessons in stated choice survey design, European Transport Conference, Noordwijkerhout, October 200 .
  • Hess S; Adler T (2009) An analysis of trends in air travel behaviour using four related SP datasets collected between 2000 and 2005, European Transport Conference, Noordwijkerhout, October 2009. .
  • Chorlton K; Hess S; Jamson S; Wardman M (2009) An investigation into the demand for Intelligent Speed Adaptation (ISA) systems in the United Kingdom, European Transport Conference, Noordwijkerhout, October 2009. .
  • Rose JM; Hess S; Bliemer M; Daly A (2009) The impact of varying the number of repeated choice observations on the mixed multinomial logit model, European Transport Conference, Noordwijkerhout, October 2009. .
  • Chintakayala P; Hess S; Rose JM (2009) Using second preference choices in pivot surveys as a means of dealing with inertia, European Transport Conference, Noordwijkerhout, October 2009. .
  • Caussade S; Hess S (2009) An investigation into air travellers willingness to pay for ancillary service attributes within a branded fare context, European Transport Conference, Noordwijkerhout, October 2009. .
  • Campbell D; Hess S (2009) Outlying sensitivities in discrete choice data: causes, consequences and remedies, European Transport Conference, Noordwijkerhout, October 2009. .
  • Hess S; Ben-Akiva M; Gopinath D; Walker J (2009) Taste heterogeneity, correlation and elasticities in latent class choice models, 88th Annual Meeting of the Transportation Research Board .
  • Hess S; Hensher DA (2009) Using conditioning on observed choices to retrieve individual-specific attribute processing strategies, 88th Annual Meeting of the Transportation Research Board .
  • Hess S (2009) Evidence of passenger preferences for specific types of airports, 88th Annual Meeting of the Transportation Research Board .
  • Rose JM; Hess S (2009) Dual response choices in pivoted stated choice experiments, 88th Annual Meeting of the Transportation Research Board .
  • Bonsall P; Shires JA; Hess S (2009) The value of simplicity: an investigation of travellers’ response to simplified fare structures, 12th International Conference on Travel Behaviour Research, Jaipur. .
  • Polak JW; Hess S; Liu X (2008) Characterising Heterogeneity in Attitudes to Risk in Expected Utility Models of Mode and Departure Time Choice, 87th Annual Meeting of the Transportation Research Board .
  • Hess S; Smith CS; Stubits J (2008) Measuring Effects of Different Experimental Designs and Survey Administration Methods Using Atlanta Managed-Lanes Stated-Preference Survey, 87th Annual Meeting of the Transportation Research Board .
  • Hess S; Erath A; Axhausen KW (2008) Joint Valuation of Travel Time Savings Estimation on Four Separate Swiss Data, 87th Annual Meeting of the Transportation Research Board .
  • Mabit S; Hess S; Caussade S (2008) Correlation and Willingness-to-Pay Indicators in Transport Demand Modelling, 87th Annual Meeting of the Transportation Research Board .
  • Hess S; Ben-Akiva M; Gopinath D; Walker J (2008) Some developments in latent class modelling, European Transport Conference, Noordwijkerhout, October 2008. .
  • Hess S; Train KE (2008) Approximation issues in simulation-based estimation of random coefficients models, European Transport Conference, Noordwijkerhout, October 2008. .
  • Hess S; Rose JM; Polak JW (2008) Approaches for dealing with non-trading, lexicographic and inconsistent behaviour in stated choice data, European Transport Conference, Noordwijkerhout, October 2008. .
  • Chintakayala PK; Rose JM; Hess S; Wardman M (2008) UK experience with an advanced survey design for value of time studies, .
  • Collins A; Rose JMA; Hess S (2008) Search Based Internet Surveys: Airline Stated Choice by Rose, 8th International Conference on Survey Methods in Transport, Annecy, France. .
  • Hess S; Rose JM (2007) Intra-respondent taste heterogeneity in instantaneous panel data, European Transport Conference, Noordwijkerhout, October 2007. .
  • Bliemer MCJ; Rose JM; Hess S (2007) Approximation of Bayesian Efficiency in Experimental Choice Designs, 86th Annual Meeting of the Transportation Research Board .
  • Axhausen KW; Hess S; K nig A; Abay G; Bates JJ; Bierlaire M (2007) Income and distance elasticities of values of travel time savings: New Swiss results, 11th triennial WCTR conference, Berkeley, CA. .
  • Hess S; Rose JMA; Hensher DA (2007) Asymmetrical Preference Formation in Willingness to Pay Estimates in Discrete Choice Models, 11th triennial WCTR conference, Berkeley, CA. .
  • Bliemer MCJ; Rose JM; Hess S (2007) Approximation of Bayesian Efficiency in Experimental Choice Designs, 11th triennial WCTR conference, Berkeley, CA. .
  • Hess S; Bolduc D; Polak JW (2006) Random Covariance Heterogeneity in Discrete Choice Models, 85th Annual Meeting of the Transportation Research Board .
  • Hess S; Adler T; Polak JW (2006) Modelling Airport and Airline Choice Behaviour with Stated Preference Survey Data, 85th Annual Meeting of the Transportation Research Board .
  • Hess S (2006) Posterior analysis of random taste coefficients in air travel choice behaviour modelling, European Transport Conference, Strasbourg. .
  • Fosgerau M; Hess S (2006) Competing methods for representing random taste heterogeneity in discrete choice models, European Transport Conference, Strasbourg. .
  • Hess S; Bierlaire M; Polak JW (2006) A systematic comparison of continuous and discrete mixture models, 11th International Conference on Travel Behaviour Research, Kyoto. .
  • Hess S; Bolduc D; Polak JW (2006) Random covariance heterogeneity in discrete choice models, 11th International Conference on Travel Behaviour Research, Kyoto. .
  • Daly A; Hess S; Polak JW; Hyman G; Rohr C (2005) Modelling departure time and mode choice, European Regional Science Conference, Amsterdam. .
  • Hess S; Bierlaire M; Polak JW (2005) Estimation of value of travel-time savings using Mixed Logit models, 84th Annual Meeting of the Transportation Research Board .
  • Hess S; Polak JW (2005) Accounting for random taste heterogeneity in airport-choice modelling, 84th Annual Meeting of the Transportation Research Board .
  • Bastin F; Cirillo C; Hess S (2005) Evaluation of advanced optimisation methods for estimating Mixed Logit models, 84th Annual Meeting of the Transportation Research Board .
  • Hess S; Polak JW; Daly AJ (2005) Flexible Substitution Patterns in Models of Mode and Time of Day Choice: New evidence from the UK and the Netherlands, 84th Annual Meeting of the Transportation Research Board .
  • Hess S (2004) An analysis of the effects of speed limit enforcement cameras with differentiation by road type and catchment area, 83rd Annual Meeting of the Transportation Research Board .
  • Hess S; Polak JW; Daly AJ (2003) On the performance of shuffled Halton sequences in the estimation of discrete choice models, European Transport Conference, Strasbourg. .

Other Publications

  • Aeron-Thomas AS; Hess S (2005) Red-light cameras for the prevention of road traffic crashes., Cochrane database of systematic reviews (Online : Update Software), .

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