Conference Proceedings Archive
» Sunday
17:00 - 19:00
» Monday
9:00 - 10:00
Opening and Plenary Lecture: Maurice Unck
10:00 - 10:30
Coffee Break
10:30 - 12:00
1A Transit Network Design
10:30 - 12:00 Room: 3
Chair: Hong Lo
Download PaperTransit Network Design by Hybrid Guided Genetic Algorithm With Elitism
Md. Khaledur Rahman, Muhammad Ali Nayeem and M. Sohel Rahman
Download PresentationDownload PaperTransit network design for small-medium size cities
Ernesto Cipriani, Gaetano Fusco, Sergio Maria Patella, Marco Petrelli and Luca Quadrifoglio
Robust Transit Network Design with Stochastic Demand
Kun An and Hong Lo
1B Vehicle Scheduling
10:30 - 12:00 Room: 5
Chair: Pitu Mirchandani
Download PaperThe Electric Vehicle Scheduling Problem - A study on time-space network based and heuristic solution approaches
Josephine Reuer, Lena Wolbeck and Natalia Kliewer
Scheduling Electric Vehicles
Marcel van Kooten Niekerk, Marjan Van Den Akker and Han Hoogeveen
The Vehicle Scheduling Problem for Alternative-Fuel Vehicle Fleets
Pitu Mirchandani
1C Integrated Timetabling
10:30 - 12:00 Room: 6
Chair: Anita Schöbel
Integrated periodic timetabling and rake - linking with train routing in resource constrained Suburban rail networks in India
Shashank Dangayach, Narayan Rangaraj and Mihir Tamhankar
Download PresentationIntegrated railway schedule planning
Luis Cadarso, Manuel Fuentes and Ángel Marín
Integration of line planning and timetabling
Anita Schöbel
1D Fare Planning
10:30 - 12:00 Room: 8
Chair: Juan Carlos Muñoz
Download PresentationDownload PaperTariff zone planning for public transport companies
Knut Haase and Sven Müller
The impact on fare evasion of a credit-based fare system in Transantiago
Christopher Bucknell, Juan Carlos Muñoz, Alejandro Schmidt and Matías Navarro
Optimal mixed strategies for dealing with fare evasion in public transport
Pablo Guarda, Juan De Dios Ortúzar, Susan Handy, Patricia Galilea and Juan Carlos Muñoz
12:00 - 13:15
Lunch Break
13:15 - 14:45
2A Bus Transportation
13:15 - 14:45 Room: 3
Chair: Avi Ceder
Bus lanes, boarding and headway holding – results and validity of a simulation assessment tool
Jens West and Oded Cats
Download PresentationDownload PaperCommunication-based Cooperative Control Strategy for Public-Transport Transfer Synchronization
Tao Liu and Avi Ceder
Download PresentationDownload PaperReal-time Public-Transport Operational Tactics Using Synchronized Transfers to Eliminate Vehicle Bunching
Mahmood Nesheli, Avi Ceder and Vicente Gonzalez
2B Crew Scheduling and Rostering
13:15 - 14:45 Room: 5
Chair: François Ramond
Integration of Duty Scheduling and Rostering to Increase Driver Satisfaction
Steffen Weider, Ralf Borndörfer, Stephan Seidl and Christof Schulz
PLAISANCE : A tool for scheduling trains drivers for French railways
Geoffroy Chevalier, Aurélien Froger, Olivier Guyon and Eric Pinson, François Ramond
2C Railway Capacity Planning and Routing
13:15 - 14:45 Room: 6
Chair: Nikola Besinovic
Download PresentationDownload PaperEvaluating capacity utilisation and its upper limits at railway nodes
John Armstrong, John Preston and Ian Hood
Download PresentationDownload PaperAn optimisation framework for determination of capacity in railway networks
Lars Wittrup Jensen
Download PresentationRobust routing in station areas with reducing capacity utilisation
Nikola Besinovic and Rob Goverde
2D Dial-a-Ride Problems
13:15 - 14:45 Room: 8
Chair: Jörn Schönberger
Download PresentationDownload PaperConstraint Propagation for the Dial-a-Ride Problem with Transfers
Samuel Deleplanque and Alain Quilliot
Download PresentationThe integrated dial-a-ride problem with timetabled fixed route service
Marcus Posada, Henrik Andersson and Carl Henrik Häll
Hybrid Search and the Dial-A-Ride Problem with Transfer Scheduling Constraints
Jörn Schönberger
14:45 - 15:15
Coffee Break
15:15 - 16:45
3A Data-driven Approaches to Passenger Behavior
15:15 - 16:45 Room: 3
Chair: Mark Hickman
A Modeling Framework for Passenger-to-Train Assignment Based on Automated Data
Yiwen Zhu, Haris Koutsopoulos and Nigel Wilson
Download PresentationDownload PaperIdentifying Spatial-Temporal Users Behaviour through Smart Card Data
Mohammad Sajjad Ghaemi, Bruno Agard, Vahid Partovi Nia and Martin Trépanier
Data Mining and Modeling for Smart Transit Management
Siddharth Gupta, Mark Hickman and Karthik Srinivasan
3B Delays in Public Transportation
15:15 - 16:45 Room: 5
Chair: Sofie Burggraeve
Using the Nexus transit simulation platform for analyzing disruption events and operational response: A case study of the Greater Toronto Area
Siva Srikukenthiran and Amer Shalaby
Download PresentationDownload PaperMining the Cause of Delays in Urban Railways based on Association Rules
Hideyuki Yabuki, Taku Ageishi and Norio Tomii
Download PresentationDownload PaperAdvanced methods for improving passenger robustness in railway systems
Sofie Burggraeve, Sofie Van Thielen and Pieter Vansteenwegen
3C Energy-efficient Train Operations
15:15 - 16:45 Room: 6
Chair: Rob Goverde
Train Operation Regulation Via Speed Control, Boarding Limits and Holding
Carlos E. Bueno and Juan Carlos Muñoz
Train Trajectory Optimization with Signalling Constraints
Pengling Wang, Rob Goverde and Lei Ma
Download PresentationDownload PaperEffect of regenerative braking on energy-efficient train control
Gerben Scheepmaker and Rob Goverde
3D Transit Networks
15:15 - 16:45 Room: 8
Chair: Andreas Neumann
Download PresentationDownload PaperThe Pareto set as decision support information in multimodal passenger transportation network design
Ties Brands, Luc Wismans and Eric van Berkum
Optimizing Transit Route Design for Equity
Kelly Bertolaccini, Nicholas Lownes and S. Travis Waller
Download PresentationDownload PaperWhy closing an airport may not matter
Andreas Neumann
17:30 - 18:30
» Tuesday
9:00 - 11:00
4A Sponsor Presentations
9:00 - 11:00 Room: 3
Chair: Dennis Huisman
Optibus: Future autonomous scheduling control systems
Yossi Aloni
Quintiq solutions for Public Transport
Tessa Matser and Maarten Hendriks
Download PresentationGIRO: Helping improve Public Transport for over 35 years
Alexandre Savard
SISCOG Advanced Solutions
Hugo Dias
4B Railway Line Planning 1
9:00 - 11:00 Room: 5
Chair: Juan A. Mesa
Generation of Line Pools
Philine Gattermann, Jonas Harbering and Anita Schöbel
Line planning problem in a dense High-Speed Rail corridor
Fei Yan, Rob Goverde and Nikola Besinovic
An optimization based method for line planning to minimize travel time
Simon Bull, Richard Lusby and Jesper Larsen
Download PresentationDownload PaperThe Rapid Transit Frequency and Fleet Size Setting Problem with Maximal Profit
Alicia De Los Santos, Juan A. Mesa and Federico Perea
4C New Advances in Railway Timetabling
9:00 - 11:00 Room: 6
Chair: Gabor Maroti
Download PaperOptimal Balancing of the Power Consumption of Trains in a Railway Network via Timetabling
Andreas Bärmann, Alexander Martin and Oskar Schneider
High-Potential Heuristics for Railway Timetabling
Irving van Heuven van Staereling
Download PaperExtraction of Significant Conflicts in Periodic Timetabling
Michael Kümmling, Peter Großmann, Reyk Weiß, Jens Opitz and Karl Nachtigall
A Branch-and-Bound Approach for Robust Railway Timetabling
Gabor Maroti
4D The Role of Information
9:00 - 11:00 Room: 8
Chair: Clint Pennings
Download PresentationQuantifying the Impact of Real-Time Information on Transit Ridership
Candace Brakewood and Kari Watkins
Download PresentationDownload PaperExperimental Evaluation of Real-Time Information Services in Transit Systems from the Perspective of Users
Matías Estrada, Ricardo Giesen, Antonio Mauttone, Emilio Nacelle and Leandro Segura
Forecasting Passenger Choice Behaviour in Response to Imperfect Information
Clint Pennings, Paul Bouman and Jan van Dalen
11:00 - 11:30
Coffee Break
11:30 - 12:30
5A On-Street Public Transport 1
11:30 - 12:30 Room: 3
Chair: Oren Nahum
Download PresentationProviding bus signal priority without damaging car discharge capacities
Weihua Gu, Haoyu Chen and Yiguang Xuan
Download PresentationDownload PaperUrban Bus Network of Priority Lanes: a Combined Multi-Objective and Multi-Criteria Approach
Yuval Hadas and Oren Nahum
5B Crew Rostering
11:30 - 12:30 Room: 5
Chair: Björn Zimmermann
Download PresentationDownload PaperDuty Rostering in Public Transport - Facing Preferences, Fairness, and Fatigue
Ralf Borndörfer, Markus Reuther, Thomas Schlechte, Christof Schulz, Elmar Swarat and Steffen Weider
Psychological Consequences of Railway Crew Rostering: The role of Organizational Justice, Work-Family Conflict and Stress
Björn Zimmermann and Michaéla C. Schippers
5C Stochastic Delay Propagation and Prediction
11:30 - 12:30 Room: 6
Chair: Michael Kolonko
Download PresentationStochastic prediction of train delays in real-time using Bayesian networks
Pavle Kecman, Francesco Corman, Anders Peterson and Martin Joborn
Download PresentationDownload PaperModelling Delay Propagation in Railway Networks With Closed Families of Distributions
Michael Kolonko and Fabian Kirchhoff
5D City Transportation 1
11:30 - 12:30 Room: 8
Chair: Mark Hickman
Modelling Perceived Transit Quality Under Travel and User Heterogeneity: a SEM-MIMIC Approach
Jaime Allen, Juan Carlos Muñoz and Juan De Dios Ortúzar
Download PresentationDownload PaperAn Interactive Preference Analysis Method for Evaluating Possible Intercity Transit Options
Andisheh Ranjbari, Yi-Chang Chiu and Mark Hickman
12:30 - 14:00
Lunch Break
14:00 - 15:30
6A Sponsor Presentation and OD estimation
14:00 - 15:30 Room: 3
Chair: Twan Dollevoet
Download PresentationAb Ovo: The (relative) value of mathematical solutions for the operational logistic planning in practice
Michiel de Neef
Download PresentationDownload PaperValidating and calibrating a destination estimation algorithm for public transport smart card fare collection systems
Li He, Neema Nassir, Martin Trépanier and Mark Hickman
Estimating Transit OD Flows using Boarding and Alighting Data: A Clustering-based Variational Bayes Method that Recognizes Several Underlying Latent OD Matrices
Andrew Landgraf, Rabi Mishalani, Prem Goel and Mark Mccord
6B Bus Holding and Control
14:00 - 15:30 Room: 5
Chair: Kari Watkins
Comparing Open and Closed BRT networks in medium-sized cities
Francisco Javier Proboste and Juan Carlos Muñoz
Dynamic Holding Control in Corridors with Overlapping Bus Lines: Methodology and Results from an Implementation Project in San Sebastian, Spain
Juan Argote-Cabanero and Carlos Daganzo
A Real-Time Bus Dispatching Policy to Minimize Passenger Wait Without Buffer
Simon Berrebi, Kari Watkins and Jorge Laval
6C Maintenance
14:00 - 15:30 Room: 6
Chair: Paolo dell'Olmo
Maintenance Location Routing for Train Units: An Agenda for Research
Denise Tönissen, Joachim Arts and Geert-Jan van Houtum
Maintenance windows for railway infrastructure maintenance - An assessment and dimensioning model for the study of traffic impact and maintenance cost
Tomas Lidén and Martin Joborn
Download PresentationDownload PaperA new mixed integer linear programming formulation for a maintenance problem in Italian railways
Lavinia Amorosi, Paolo Dell'Olmo and Giovanni Luca Giacco
6D Transit Assignment
14:00 - 15:30 Room: 8
Chair: Maximilian Hartl
Download PresentationIntegrated fare modeling with strategy-based transit assignment
Isabelle Constantin and Daniel Florian
An approach-based formulation for reliability-based stochastic transit assignment
Wy Szeto and Yu Jiang
Modelling public transport congestion: comparing static and dynamic models
Oded Cats and Maximilian Hartl
16:30 - 18:30
» Wednesday
9:00 - 11:00
7A Comfort and Level of Service
9:00 - 11:00 Room: 3
Chair: Niels van Oort
Download PresentationDownload PaperInfotainment in intercity bus services - Customer requirements analysis and conceptual design
Andre Richter, Stefan Voß and Joachim R. Daduna
Estimating Quality of Service Indicators From Smart Card And Automatic Vehicle Location Data
César Núñez, Antonio Gschwender and Marcela Munizaga
Travelers’ Preferences regarding the Interior of Public Buses: A Hierarchical Information Integration Approach
Peter Van der Waerden, Emilie Couwenberg and Geert Wets
Download PresentationDownload PaperData driven public transport predictions considering comfort aspects
Niels van Oort, Marc Drost, Ties Brands and Menno Yap
7B Timetabling and Rolling-Stock Rescheduling
9:00 - 11:00 Room: 5
Chair: Peter Großmann
Download PresentationDownload PaperComparing two dual relaxations of large scale train timetabling problems
Frank Fischer and Thomas Schlechte
Download PresentationDownload PaperTemplate based re-optimization of rolling stock rotations
Ralf Borndörfer, Boris Grimm, Markus Reuther and Thomas Schlechte
Download PresentationReal-Time High Speed Train Rescheduling in Case of A Partial Segment Blockage
Shuguang Zhan, Jun Zhao and Qiyuan Peng
On Resolving Infeasible Periodic Event Networks
Peter Großmann, Jens Opitz, Reyk Weiß and Michael Kümmling
7C Crew Scheduling and Rescheduling
9:00 - 11:00 Room: 6
Chair: Hilbert Snijders
Download PresentationDownload PaperOptimizing Crew Schedules with Fairness Preferences
Silke Jütte, Daniel Mueller and Ulrich W. Thonemann
A heuristic for real-time crew rescheduling during small disruptions
Thijs Verhaegh, Dennis Huisman, Pieter-Jan Fioole and Juan C. Vera
A new approach to crew scheduling in rapid transit networks
Manuel Fuentes, Luis Cadarso and Ángel Marín
Download PresentationDownload PaperSecurity crew scheduling at Netherlands Railways
Hilbert Snijders and Ricardo Saldanha
7D Passenger Routing
9:00 - 11:00 Room: 8
Chair: Joris Wagenaar
Download PresentationDownload PaperModelling Urban Public Transportation Networks to Support Robust Routing
Katerina Bohmova, Matus Mihalak, Tobias Pröger and Peter Widmayer
A labeling algorithm for a real-time location-based multi-modal trip with ride-sharing and public transportation
Kamel Aissat and Sacha Varone
Optimizing itineraries in public transportation with a user-defined walking speed
Bram de Jonge
Download PresentationDownload PaperOptimized Travel Menus with a Flexible Mobility on Demand System
Bilge Atasoy, Takuro Ikeda and Moshe Ben-Akiva
11:00 - 11:30
Coffee Break
11:30 - 12:30
Plenary Lecture: Martin Grötschel
12:30 - 14:00
Lunch Break
14:00 - 15:30
8A On-Street Public Transport 2
14:00 - 15:30 Room: 3
Chair: Leonardo J. Basso
Mesoscopic modelling of on-street public transport systems
Jesper Bláfoss Ingvardson, Otto Anker Nielsen and Jonas Kornerup Jensen
Transit Travel Time Prediction for Transit Signal Priority Implementation
Mohammad Ghanim and Ghassan Abu-Lebdeh
Urban road capacity investment and the Downs-Thompson paradox
Leonardo J. Basso, Hugo E. Silva and Ignacio Riquelme
8B Railway Line Planning 2
14:00 - 15:30 Room: 5
Chair: Natalia Rezanova
Download PresentationDownload PaperDesign of a robust railway line system for severe winter conditions
Maarten Trap, Dennis Huisman and Rob Goverde
Line frequency and capacity determination in Railway Rapid Transit Networks with shared segments
David Canca, Alicia De Los Santos, Eva Barrena, Gilbert Laporte and Alejandro Zarzo
Download PresentationDownload PaperLine Planning Optimization at DSB
Natalia Rezanova
8C Passenger-Oriented Timetabling
14:00 - 15:30 Room: 6
Chair: Peter Sels
Download PresentationDownload PaperEvaluating the Quality of Railway Timetables from Passenger Point of View
Tomas Robenek, Shadi Sharif Azadeh and Michel Bierlaire
Download PresentationDownload PaperTimetabling and Passenger Routing in Public Transport
Heide Hoppmann, Ralf Borndörfer and Marika Karbstein
Download PresentationDownload PaperTowards a Better Train Timetable for Denmark, Reducing Total Expected Passenger Time
Peter Sels, Katrine Meisch, Tove Moeller, Jens Parbo, Thijs Dewilde, Dirk Cattrysse and Pieter Vansteenwegen
8D Reliability
14:00 - 15:30 Room: 8
Chair: Haris Koutsopoulos
Public transport’s reliability: the case of Santiago, Chile
Constanza Danes and Juan Carlos Muñoz
Download PresentationDownload PaperAn empirical evaluation of measures to improve bus service reliability: Performance metrics and a case study in Stockholm
Masoud Fadaei Oshyani and Oded Cats
New Methods for Measuring Passengers’ Reliability Experience Using Automated Data Sources
Daniel Wood, Anne Halvorsen, Haris Koutsopoulos and Nigel Wilson
15:30 - 16:00
Coffee Break
16:00 - 17:30
9A Express Busses and Stopping Schemes
16:00 - 17:30 Room: 3
Chair: Homero Larrain
Download PresentationSuper express services operated on urban highways: The opportunity of a new metropolitan transport mode
Matías Navarro, Juan Carlos Muñoz, Christopher Bucknell and Alejandro Schmidt
Exploring alternative schemes to serve transit corridors
Zahra Amini, Weihua Gu and Michael J. Cassidy
Download PresentationDownload PaperWhen to provide express services for buses?
Homero Larrain and Juan Carlos Muñoz
9B Railway Dispatching 1
16:00 - 17:30 Room: 5
Chair: Marie Schmidt
Download PresentationDownload PaperOptimal train rescheduling after conflict detection
Sofie Van Thielen, Sofie Burggraeve and Pieter Vansteenwegen
Download PaperPANDA: A Software Tool for Improved Train Dispatching with Focus on Passenger Flows
Ralf Rückert, Martin Lemnian, Steffen Rechner, Christoph Blendinger and Matthias Müller-Hannemann
Train Delay and Passenger Travel Time Minimization in Real-Time Railway Traffic Management
Francesco Corman, Andrea D'Ariano, Dario Pacciarelli, Federico Sabene and Marcella Samà
9C Railway Simulation and Control
16:00 - 17:30 Room: 6
Chair: Thomas Albrecht
A flexible simulation model for light-rail operations
Tim Jongerius, Francesco Corman, Hilbert Veldhoen and Gabriel Lodewijks
Download PresentationDownload PaperA comparison of different configurations of a Centrally Guided Train Operation System in Dutch Railway Operations
Ramon Lentink, Dick Middelkoop and Douwe De Vries
Evaluation of real-time traffic state monitoring in a railway system
Thomas Albrecht, Birgit Jaekel and Patrick Reiher
9D City Transportation 2
16:00 - 17:30 Room: 8
Chair: Mark Hickman
Download PresentationDownload PaperJourney-Based Characterization of Multi-Modal Public Transportation Networks
Cecilia Viggiano, Haris Koutsopoulos, Nigel Wilson and John Attanucci
Statistical inference of transit passenger boarding strategies from farecard data
Neema Nassir, Mark Hickman and Zhen-Liang Ma
19:00 - 23:00
» Thursday
9:00 - 10:30
10A Transit Networks
9:00 - 10:30 Room: 3
Chair: Rodrigo Fernandez
Download PresentationDownload PaperVilnius public transport development: towards the more sustainable system
Alina Verseckiene, Vaidotas Meškauskas and Modesta Gusaroviene
Towards a Flexible and Adaptive Planning of Public Transportation: A sensitivity analysis of the Network Design
Elina Maria Avila Ordóñez and Pieter Vansteenwegen
Download PresentationDownload PaperIn search of passenger saturation flows through transit doors
Rodrigo Fernandez, Sebastián Seriani and Alejandra Valencia
10B Railway Line Planning 3
9:00 - 10:30 Room: 5
Chair: Jens Parbo
A Quasi-Exact Approach for the Simultaneous Resolution of the Network Design and Frequency Setting in Railway Systems
Francisco López-Ramos, Esteve Codina, Ángel Marín and Andreas Bärmann
An adaptive large neighborhood search heuristic for railway rapid transit network design
David Canca, Alicia De Los Santos, Gilbert Laporte and Juan A. Mesa
Download PresentationImproving Passenger-Oriented Line Planning Algorithm for Railway Network
Jens Parbo, Otto Anker Nielsen and Carlo Giacomo Prato
10C Rolling Stock Scheduling and Rescheduling
9:00 - 10:30 Room: 6
Chair: Evelien Van Der Hurk
Optimization of regularity patterns for rolling stock rotations
Markus Reuther, Ralf Borndörfer and Thomas Schlechte
Download PresentationDownload PaperTrain unit scheduling with bi-level capacity requirements
Zhiyuan Lin, Eva Barrena and Raymond Kwan
Passenger Guidance and Rolling Stock Rescheduling under Uncertainty for Disruption Management
Evelien Van Der Hurk, Leo Kroon and Gabor Maroti
10D Reliable transit networks
9:00 - 10:30 Room: 8
Chair: Yuval Hadas
Bus transit service reliability: Understanding the impacts of service overlapping on headway adherence
Ehab Diab, Robert Bertini and Ahmed El-Geneidy
Download PresentationDownload PaperAn Offline Framework for Reliability Diagnosis by Automatic Vehicle Location Data
Benedetto Barabino, Massimo Di Francesco and Roberto Murru
Download PresentationDownload PaperThe Effect of Multiple Shared Bus-Stops on Transfer’s Reliability
Yuval Hadas
10:30 - 11:00
Coffee Break
11:00 - 12:00
Plenary Lecture: Martin Trépanier
12:00 - 13:30
Lunch Break
13:30 - 15:00
11A Control Approaches for Bus Transportation
13:30 - 15:00 Room: 3
Chair: Juan Carlos Muñoz
Download PresentationDownload PaperSchedule-Free High-Frequency Transit
Gabriel E. Sánchez-Martínez, Haris Koutsopoulos and Nigel Wilson
Self-equalizing Bus Headway Control under Travel Time Variations
Shuyang Zhang and Hong Lo
Download PresentationBus control strategy application: case study of Santiago transit system
Pedro Lizana, Juan Carlos Muñoz, Ricardo Giesen and Felipe Delgado
11B Depot Planning
13:30 - 15:00 Room: 5
Chair: Richard Lusby
Optimization in a Public Transport Depot
Charles Fleurent
The Depot Problem during Railway Operations
Joris Wagenaar, Jørgen Haahr and Richard Lusby
Download PresentationDownload PaperSimultaneously Recovering Rolling Stock Schedules and Depot Plans Under Disruption
Richard Lusby, Jørgen Haahr, Jesper Larsen and David Pisinger
11C Train Dispatching 2
13:30 - 15:00 Room: 6
Chair: Marcel Schneider
Optimal rerouting of short-turning trains during track obstructions
Nadjla Ghaemi, Rob Goverde and Oded Cats
Download PresentationDownload PaperMeeting functional requirements for real-time railway traffic management with mathematical models
Ambra Toletti, Marco Laumanns, Peter Grossenbacher and Ulrich Weidmann
Download PresentationDownload PaperMonetary evaluation of dispatching decisions in consideration of choice of transport
Marcel Schneider and Nils Nießen
11D New Developments in Public Transportation
13:30 - 15:00 Room: 8
Chair: Stefan Voß
Analyzing Public-Private Partnerships in Railway and Property Development via Real Options
Ka Fai Ng and Hong Lo
A Methodology For Transit Route Packaging In A Bus Contracting Operative Model
Ashish Nayan and David Z W Wang
Download PresentationDownload PaperAssessing Public Transport Research Using Scientometrics
Leonard Heilig and Stefan Voß
15:00 - 15:15
Closing Session
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