Prsentation for RNE

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Capacity Consumption On Rail Net Denmarks
Network __________________________________________
___ Bernd Schittenhelm besc_at_bane.dk
NJS Technical Meeting - Gothenburg, 8th of
October 2007
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Programme

• Rail Net Denmark's Network
• Dividing the network into line sections
• Capacity Consumption Methodology
• Standard time slots
• Visualization of results
• Identification of bottlenecks
• Outlook
• Using the UIC406 method
• Handling changes in infrastructure and/or
  timetable

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Rail Net Denmarks Network

• Intercity Express
• Intercity
• Regional

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Rail Net Denmarks Network

• Dividing the Network in Line Sections at
• Junctions
• Line end stations
• Double track ?? Single track
• Special cases e.g. changing interlocking system
• NOT dividing at
• Overtaking stations
• Crossing stations
• Dividing the network has been done in cooperation
  with the Danish National Railway Authority and
  the Centre for Traffic and Transport at the
  Technical University of Denmark

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Methodology Standard Time Slot

• Standard Time Slot
• Intercity train time slot on lines frequently
  serviced (1 - 2 trains pr. hour) by intercity
  trains
• Regional train time slot on lines with infrequent
  or no intercity train service
• __________________________________________________
  ___________________________
• Number of Standard Time Slots
• Double Track Line Planned minimum headway time
  of interlocking system
• Single Track Line Longest running time between
  crossing stations
• __________________________________________________
  ___________________________
• Capacity Consumption
• Train types converted to a number of standard
  time slots

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Methodology Standard Time Slot

• Advantages
• Simple calculation principles
• Not time consuming
• Usable results
• Disadvantages
• Which train class is a standard time slot?
• Results are based on individual knowledge,
  experience and judgment
• Results can be difficult to reproduce for others

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Visualization of Results

• 3 categories of capacity utilization
• Capacity available
• Capacity almost used up
• Capacity used up

Important stations/junctions HAVE NOT been
investigated separately
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Visualization of Results

• 3 categories of capacity consumption
• Capacity available
• Capacity almost used up
• Capacity used up

Important stations/junctions HAVE been
investigated separately
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Visualization of Results
Stations and junctions have been investigated
separately
Stations and junctions have not been investigated
separately
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Using the UIC406 Method
Build up infrastructure
Create timetable
Divide railway network into line sections
Compress timetables
Work out capacity consumption
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Using the UIC406 Method

• Advantages
• The method is used by more and more users e.g. by
  The Danish National Rail Authority,
  consultancies, other infrastructure managers
• The methodology can and is being implemented in
  timetabling and simulation tools such as RailSys
• Results are reproducible by other people
• The method can give input to the standard time
  slot method
• Disadvantages
• If done manually very time consuming
• The UIC406 leaflet is a guideline. Can be
  expounded differently
• The UIC method has some build in paradoxes

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Changes in Infrastructure and/or Timetable

• Rail Net Denmark produces a capacity consumption
  analysis as an enclosure to the yearly Network
  Statement ? the analysis is based on an existing
  valid timetable
• To ensure comparability between analyses an
  overlapping statement is needed. Describing major
  changes in conditions e.g.
• Introduction of a new railway line
• Upgrading of a single track line to double track
  
• Changes in the timetable e.g. new service
  pattern on a railway line

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Thank you for your attention! Bernd
Schittenhelm Rail Net Denmark besc_at_bane.dk
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Extra train on double track less capacity
consumption?
Graphics made by Alex Landex, Centre for Traffic
and Transport, Technical University of Denmark
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Overtakings less capacity consumption?
Graphics made by Alex Landex, Centre for Traffic
and Transport, Technical University of Denmark