Pr

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First Sino-French Conference On Sustainable Urban
Transport Systems November 11-14,
2008 Shanghai, China
setec
A Methodology to Develop a Multimodal Travel
Model in a Chinese City Alain BLOCH / Setec
International
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setec
Independent Engineering Group
design??
master ??
www.setec.fr
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Table of Contents??
A Methodology for Sustainable Mobility and
Transport Planning Studies

• A Brief Presentation of the Setec Group
• Why a Model ?
• The Main Elements and Steps
• First Phase Study Area and Zoning
• Second Phase Data Bases
• Third Phase the Modelling Chain
• calibration of the present situation
• evolution and forecasts
• modal choice
• Some Issues
• various uses of a traffic model
• examples

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A Brief Presentation of the Setec Group
Presentation Range of Services Our references
Modelling Methodology

• founded in 1957, the setec group is now one of
  Frances largest engineering firms it is
  completely independent
• Setec ?????1957?,?????????????
• in 2008, setec has a staff of almost 1,500 in
  France and abroad, among them 1,000 engineers
• ?2008?,????????1500???????
• subsidiaries and branches abroad
• Hungary, Iran, Japan, Luxemburg, Marocco,
  Russia, Tunisia
• ??????,??,??,???,???,??????????
• annual sales in 2007 (only French
  subsidiaries) 143 M
• 2007?????(??????)1.43 ???

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Presentation Range of Services Our references
Modelling Methodology
Ranges of Services ????
transport economy mobility ????? transport
systems ???? infrastructures ???? buildings
??? industry ?? water and waste
???????? environement ???? project management
???? strategy, organisation ?????,???? urban and
transport planning ??,?? telecommunications Ict
??????Ntic intelligent transport systems ??????
Consulting ?? Design ?? Supervision of
Works ???? Assistance to the Owner ??????
for
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Major projects ????
Presentation Range of Services Our references
Modelling Methodology

• Transport and infrastructures
• ?????????
• Environement ??
• Urban planning ??
• Building ??
• Industry ??
• Telecom ??

Tunnels ?? Autoroutes (A43, A87,
A89,...)????(A43,A87,A89)
Tunnel sous la Manche ??????
Economie des transports ???? Ligne à Grande
Vitesse Rhin-Rhône ??????????
Transports en commun urbains ?????? Tramway de
lAgglomération Orléanaise ??????????
Infrastructures fluviales, maritimes et
aéroportuaires ??, ??????????? Extension du
port de la Condamine à Monaco
??????????????
Infrastructures ferroviaires ?????? Ligne
ferroviaire Lyon-Turin ?????????
Systèmes et équipements ????? Déplacement et
transport routier en Ile de France ???????
Ponts et routes ????? Viaduc de Millau
Millau ???
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Major projects ????
Presentation Range of Services Our references
Modelling Methodology

• Transport and infrastructures
• ?????????
• Environement ??
• Urban planning ??
• Building ??
• Industry ??
• Telecom ??

Déplacements urbains ???? Déplacement et
transport routier en Ile de France ???????????
Aménagement urbain ???? Ville nouvelle de NORTH
BAHRAIN ?BAHRAIN ??
Déplacements urbains ???? Plan de déplacements
urbains de lile-de-France (Paris) ??????????
Déplacements urbains ???? Révision du PDU de
lagglomération toulousaine ?????????????PDU
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Presentation Range of Services Our references
Modelling Methodology
Urban Public Transport ??????

• Traditional metros Marseille, Lyon, Paris (Eole,
  Meteor)
• ??????,??, ??(Eole, Meteor)
• Automatic metros Val de Lille, Toulouse, Rennes,
  SAT de Roissy ?????Val de Lille, ???, Rennes,
  SAT de Roissy
• Light Metro Systems (Tramway) Paris City and
  Paris Suburb, Caen, Nantes, Nancy, Nice, Orléans,
  Rouen, Strasbourg, Toulon, Valenciennes
• ????????,??,??,??,??,???,
• BRT Val de Marne, Rouen, Douai, Lyon, Cannes
• ?????
• Urban transportation Plans and Sustainable
  Mobility Policies Ile-de-France (Paris), Monaco,
  Toulouse, Le Mans, Tours, Pau
• ?????????,???,???,??...
• Intermodal nodes Nantes, Cannes, Vannes,
  Ile-de-France
• ????????,??,???...

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Transport Modelling
Presentation Range of Services Our references
Modelling Methodology

• Tools and methodology
• A Practical Guidebook for Urban Modelling for
  CERTU
• New software for the French Road Administration
• Urban and regional models
• Caen, Marseille, Reims, Toulon ,Toulouse area
  (multimodal models)
• Paris, Lyon, Marseille, Bordeaux (modèles
  routiers)
• Tokyo, Varsovie, Dakar (modèles routiers)
• Intercity models
• Passenger traffic National Multimodal Model for
  the French Railways (RFF), numerous High-Speed
  Lines in France (multimodal), Gibraltar tunnel
  between Spain and Marocco (multimodal), numerous
  road traffic models for motorways in France and
  abroad
• Goods traffic (multilodal) Lyons-Torino, Canal
  Seine-Nord Europe

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Presentation Range of Services Our references
Modelling Methodology
Setec in China setec ??????
Opéra de Pékin (calcul des structures) ?????
(????)
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Modelling Methodology Why a traffic model ?
Presentation Range of Services Our references
Modelling Methodology
Why analyzing mobility?

• Chinese Cities an exponential growth
• Very important infrastructure works in a very
  short time
• How to define a consistent transport system?
• How to build an harmonious urban development and
  a sustainable transport system?
• Analyzing mobility enables to answer various
  questions and problems
• Strategy, Planning
• Programming
• Estimate of economical and financial
  profitability
• Design of networks
• Environmental impact (noise, air pollution,
  greenhouse effect)

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Modelling Methodology Why a traffic model ?
Presentation Range of Services Our references
Modelling Methodology
Why and how modelling traffic and mobility?

• Choices are made by politic leaders who need a
  decision support tool
• Complex phenomena, now and in the future
• Important impact of investments upon people life
  and public finances
• A model enables to know the sensitivity to
  various parameters
• A model is necessarely schematic but it must not
  be a caricature
• Must be based on reality (importance of field
  surveys)
• Must be transparent (data, assumptions)
• Must be considered as a tool used with critical
  thinking
• A model is not a simple software but a complex
  process, including
• Data bases
• Mathematic formula
• Computer tools
• Urban and socio-economic analysis and assumptions
• Critical analysis of results, risk analysis

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Modelling Methodology The Main Elements Steps
Presentation Range of Services Our references
Modelling Methodology
Every mobility study using a model requires

• The definition of the study area and a zoning
• The description of the various transport networks
• The description of the transport demand
  (Origin-Destination matrices)
• The calibrated assignment of the transport demand
  on the various networks (the model must describe
  the present situation modal choice, flows and
  speeds on the various networks)
• A set of assumptions for the future (network,
  demand, behaviour)
• Forecasts
• Generation
• Distribution
• Modal choice
• Assignment

The classical four steps
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Modelling Methodology First Phase / Zoning
Presentation Range of Services Our references
Modelling Methodology
Definition of the study area and zoning

• The zoning is the basis of the modelling
• It includes internal (mainly) and external zones
• The zones must be homogeneous on an urban point
  of view
• It must be fine enough to analyze projects but
• it must be consistent with available
  socio-economic and mobility data
• it must be consistent with transport networks
• it must be consistent with statistic procedures
  for calibration
• It must take into account special traffic
  generators as airports, big commercial areas,
  universities, hospitals
• For a 10 million inhabitants city 1000 to 2000
  internal zones
• For a 1 million inhabitants city 300 to 500
  internal zones

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Modelling Methodology First Phase / Zoning
Zoning/Network (Paris)
Presentation Range of Services Our references
Modelling Methodology
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Modelling Methodology Second Phase / Data Bases
Presentation Range of Services Our references
Modelling Methodology
Data collection, analysis and classification

• Getting good databases is a fundamental condition
  to build a useful model
• Principle several databases (socio-economics,
  counts, trip times measurements, mobility data)
  will be created and introduced in a GIS
• Socio-economic data population, employment,
  students, car ownership, incomes
• Origin-destination data
• Households surveys (see CERTU)
• Screenlines surveys (around a city)
• Public transportation surveys
• Counts road and public transportation
• Trip times measurement road, public
  transportation, bikes
• Car parking
• Network description road (flow-speed curves),
  public transportation

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Modelling Methodology Second Phase / Data Base
Presentation Range of Services Our references
Modelling Methodology
Data collection population data (GIS)
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Modelling Methodology 3rd Phase/ Modelling chain
Presentation Range of Services Our references
Modelling Methodology
Calibration of the present situation
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Modelling Methodology 3rd Phase/ Modelling chain
Presentation Range of Services Our references
Modelling Methodology
Traffic Forecasts for the Future
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Modelling Methodology 3rd Phase/ Modelling chain
Presentation Range of Services Our references
Modelling Methodology
Modal Choice Model two examples
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Modelling Methodology some issues
Various uses of a traffic model
Presentation Range of Services Our references
Modelling Methodology

• Traffic estimate
• Planning / Design
• Incomes of a toll work
• Who uses the infrastructure ?
• Impact on the various transport networks
• Socio-economic analysis
• Time saving
• Decongestion
• Accessibility (isochrones)
• Design of networks
• Environmental impact (noise, air pollution,
  greenhouse effect)
• Impact upon environment
• Noise
• Traffic model interfaced with a pollutant
  emission model
• Emission depends on vehicles, speed, cool or hot
  engine
• Traffic model interfaced with a pollutant
  spreading model
• Spreading depends on topography and, especially,
  weather

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Modelling Methodology some issues
Presentation Range of Services Our references
Modelling Methodology
Traffic volume on a project
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Modelling Methodology some issues
Presentation Range of Services Our references
Modelling Methodology
Who uses a project?
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Modelling Methodology some issues
Impact on transport networks
Presentation Range of Services Our references
Modelling Methodology
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Modelling Methodology some issues
Presentation Range of Services Our references
Modelling Methodology
Air pollution emission (here NOx)
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