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Modelling drivers' behaviour on tapered on-ramps
University of Rome “La Sapienza”, Italy.
University of Rome “La Sapienza”, Italy.
2001 (English)In: Proceedings of the conference Traffic Safety on Three Continents: International conference in Moscow, Russia, 19-21 September, 2001 / [ed] Asp, Kenneth, Linköping: Statens väg- och transportforskningsinstitut, 2001, Vol. 18A:3, 12- p.Conference paper, (Other academic)
Abstract [en]

Understanding drivers' behaviour is essential to the design of traffic infrastructures with a high degree of safety, capacity and comfort. The lack of consideration of drivers' behaviour, referring to a bad model, or even worse the blind use of traffic signals that drivers will never respect, may lead to conditions of extreme unsafety such as under/over rating the capacity of the infrastructure. The study of users behaviour in a few tapered on-ramps in Italy pointed out how behaviour may be misspredicted, and what consequences wrong evaluations may lead to: rough schematisations that do not consider the interaction between the flows, or that regard interaction as a one way phenomenon (drivers on the merging lane are influenced by drivers on the main lane), are not acceptable. When considering the merging manoeuvre on the whole, four different models have been created or adapted from the classical one: 1. car following model, 2. lane changing, 3. behaviour on section just before the merging lane, 4. behaviour on tapered section. The four models have been integrated in a micro simulation program written in Visual Basic. Such a program seems to describe very well the observed behaviour, and may be used to predict infrastructures functioning and get design prescription. Simulations give indication in terms of capacity, delay and comfort, taking into account as variables the typology of the merging lane (tapered - parallel), geometry of the main street / on ramp (number of lanes, visibility, length of the merging lane, etc.) flow rates, speeds, users typology distribution (aggressive, prudent), etc.). Results show great differences and give interesting suggestions to be used at the design level.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2001. Vol. 18A:3, 12- p.
Series
VTI konferens, ISSN 1104-7267 ; 18A:3
Keyword [en]
Driver, Behaviour, Ramp, Merging traffic, Measurement, Simulation, Gap, Decision process
National Category
Applied Psychology
Research subject
80 Road: Traffic safety and accidents, 84 Road: Road users; 80 Road: Traffic safety and accidents, 82 Road: Geometric design and traffic safety
Identifiers
URN: urn:nbn:se:vti:diva-5100OAI: oai:DiVA.org:vti-5100DiVA: diva2:673930
Conference
Traffic Safety on Three Continents: International conference in Moscow, Russia, 19-21 September, 2001
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2015-09-21Bibliographically approved

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http://vti.diva-portal.org/smash/get/diva2:673699/FULLTEXT06.pdf
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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