Methods for assessing traffic flow improvement using SCATS data
Traffic engineering works are expensive and can result in lengthy disruptions to the network. Consequently, it is important for Roads Managers to be able to assess whether the works (intervention) resulted in a statistically significant improvement and to be able to defensibly quantify the improvement for the purpose of engineering and economic assessment. Such an assessment is made difficult by issues such as: limited data availability; complex dependence patterns between intersections; traffic variability and the induced-demand effect. We present a set of methods for assessment of traffic flow change based on SCATS data that meet these challenges and that can be adapted to a variety of assessment scenarios. The methods were applied to an actual traffic intervention assessment problem at Kogarah in Sydney, NSW (NSW RMS Pinch Point Program). Changes due to the intervention were analysed at the intersection, route and network scales. The results show the utility of SCATS data for detecting and measuring change within noisy, highly dependent traffic network systems.
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Authors:
- Wilson, R
- Farrelly, G
- Chong-White, C
- Conference:
- Publication Date: 2014-8
Language
- English
Media Info
- Pagination: 15p
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Serial:
- Issue Number: 9
Subject/Index Terms
- TRT Terms: Data analysis; Evaluation; Highway traffic control; Improvements; Intersections; Traffic control; Traffic flow; Types of roads by network
- Uncontrolled Terms: Road networks
- Geographic Terms: Australia; Sydney (Australia)
- ATRI Terms: Area traffic control; Data analysis; Evaluation; Intersection; Road network; Traffic flow; Traffic management
- ITRD Terms: 669: Area traffic control; NETWORK (TRAFFIC)
- Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 01540111
- Record Type: Publication
- Source Agency: ARRB
- Files: ITRD, ATRI
- Created Date: Oct 10 2014 9:41AM