Traffic Research in Poland

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Traffic Research in Poland

• and National Mobility Survey

Justyna Szczepanska Road and Bridge Research
Institute, Warsaw, Poland
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Traffic Research in Poland

• Local mobility surveys in urban areas
• (main cities of 16 regions in Poland)
• No National Mobility Survey
• General Traffic Studies (every 5 years)
• Traffic Studies for Planned Motorways
• Transport Statistics from Central Statistic
  Office

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General Traffic Study (GTS)

• At the national level - the only road traffic
  research conducted every 5 years since 1985.
• Measures traffic volume, NOT mobility of people,
  and their trip motivation.
• GTS results can be used for better national roads
  management to
• - adjust change infrastructure,
• Unfortunately there is little concern in this
  research approach to change individuals
  behaviour.

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GTS - Main parameters of traffic

• Results of GTS were used to compute main traffic
  parameters
• Average Daily Traffic (ADT - number of vehicles
  per day) in particular regions
• The characteristics of traffic
• The traffic volume during summer months

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GTS - Average Daily Traffic (ADT)

• 8 200 vehicles /day on national roads in 2005.
• The volume has grown by up to 18 since 2000.
• 13 500 vehicles/ day ADT on international roads.
  
• 5900 vehicles/day ADT on the rest of national
  roads.

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GTS - The characteristics of traffic 2005

• National road network was divided according to
  traffic characteristics.
• About 88 of national roads carried economic
  traffic,
• 3 of NR - tourist traffic,
• 9 of NR recreational traffic.
• Since 2000 tourist traffic increased slightly. At
  the same time recreational traffic decreased.
• Economic traffic has not changed.

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Traffic Studies for Planned Motorways

• 3 different types of research were used
• Automatic measurment of traffic volume
• 2.Manual measurment of traffic volume
• 3.Survey trip origin destination (mobility
  type survey)
• Traffic Studies were carried out for all planned
  motorways A1, A2, A3 (now S3) and A4

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TEN Corridors in Poland
Traffic Studies for Planned Motorways A1, A2,
S3 i A4 in 1994 1997 and in 2004 - 2006 year
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Traffic Studies for Planned Motorways

• Survey trip origin destination (mobility
  survey)
• measures elementary mobility parameters and
• motivation of drivers.
• modal split not registered because only drivers
  of
• personal cars were asked to answer the
  questionnaires.

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Urban Mobility Survey case study

• Warsaw Mobility
• Surveys conducted in
• Warsaw and its
• Metropolitan Area
• in 1993,1998, 2005.

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Warsaw Mobility Survey methods of collecting
data

• Household surveys
• Intercept surveys of drivers at Warsaw borders
• (roadside interviews)
• Traffic measurments at cordons and screen lines
• Passengers of public transport counts.
• Questionnaire on service of Warsaw public
  transport
• Traffic modelling

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Challenges of data collection in household survey

• Low willingness to participate
• Only 45 of questionnaires were carried out in
  the first stage, the rest of questionnaires were
  carried out in random route stage
• It had a visible influence on results
• The design of the questionnaire caused same
  problems with understanding it.

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Results verification 1
traffic measurement at cordons and screen lines
(TM)
household survey (HS)
mobility rates
traffic modelling
?
model traffic loads
traffic loads
Results from HS differed from TM
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Results verification 2

• Mobility results from household survey were lower
  (of 32 ) than results from Traffic Measurements.
  
• Mobility results in morning peak were
  overestimated (gt11)

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Evolution of mobility behaviour

• Car mobility in Warsaw is increasing.
• In 2005 mobility of people in Warsaw grew by up
  to
• 8 in comparison to surveys from 1993 and 1998.

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Comparison of surveys results from 1993, 1998 and
2005
The link of growing car ownership and rising
mobility rate can be observed in Warsaw.
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Comparison of surveys results from 1993, 1998 and
2005
Share of cars in modal split grows. PT share
decreases
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Attitudes to privileged Public Transport

• Majority of Warsaw citizens agree to privilege
  Public
• Transport.The number of people supporting the
  idea has
• grown since 1993.

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Suggestions for future National Mobility Survey
(1)

• Less people agree to participate in Mobility
  Surveys in many countries
• there is a need to use data from other traffic
  research (e.g. General Traffic Studies),
• and to make fusions of data from different types
  of research.
• Cooperation with other institutions dealing with
  Traffic Research (eg. General Directorate for
  National Roads and Motorways) is key matter.

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Suggestions for future National Mobility Survey
(2)

• Challenges
• Make a sample more representative.
• Make a questionnaire design as respondent-friendly
  and approachable as possible.
• More attention should be paid to change peoples
  behaviour and not only to road infrastructure.

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• Thank you for your kind attention!
• Contact jszczepanska_at_ibdim.edu.pl