Hybrid modelling with integrated adaptive SCATS signals

The ability of a model to realistically replicate on-street conditions is critical in ensuring that the outputs and recommendations made based on the modelling are as accurate as practically possible. Developments in the use of modelling tools increases confidence in these outputs, resulting in better transport projects delivered on-street. Hybrid modelling allows large networks to be covered as a mesoscopic model with sub-areas operating in a micro-simulation environment. This allows detail to be added and operational analysis to be undertaken in the areas required and of interest. The integration of adaptive SCATS signal control allows the signalised intersections within the micro-simulation area to adjust their phase splits, cycle lengths, and link plans as the volumes change in the wider network. The combination of hybrid modelling with integrated adaptive SCATS signal is a powerful new technique that increases the accuracy of transport models to replicate real world conditions. The application of this technique is demonstrated in a Fremantle case study model. As the changes to the network were made independently in both the mesoscopic and micro-simulation areas, flows about the network changed and hence the SCATS signals adapted to the flows.

• Record URL:
  http://arrbknowledge.com
• Authors:
  • Johnstone, A
  • Torday, A
• Conference:
  • ARRB Conference, 25th, 2012, Perth, Western Australia, Australia
• Publication Date: 2012-9

Language

• English

Media Info

• Pagination: 14p
• Monograph Title: The Australian Low Carbon Transport Forum: identifying the greenhouse gas abatement potential of the Australian transport sector

Subject/Index Terms

• TRT Terms: Highway traffic control; Mathematical models; Microsimulation; Traffic control; Traffic signal control systems; Traffic signal controllers; Traffic signal cycle
• Uncontrolled Terms: Road networks
• ATRI Terms: Area traffic control; Microsimulation; Modelling; Signal controller; Traffic management
• Subject Areas: Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01455608
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Nov 30 2012 2:42PM