An Analytical Approach for Estimating the Highway Capacity Manual Signalized Intersection Delay Variability
This article developed a generalized model incorporating 3 stochastic input variables in the Highway Capacity Manual (HCM) delay equation and analyzed the delay variability explicitly considering variations in key input variables including traffic volume, effective green time, and saturation flow rate. An integration method was used for calculations of mean and variance of the HCM delay. Unlike the previous Expectation Function Method, the proposed integration method can be applied for both undersaturated and oversaturated situations. The applicability of the proposed methodology was demonstrated through a hypothetical case study for a lane group at an isolated signalized intersection. The effects of stochastic variables (e.g., traffic volume, saturation flow rate, and effective green time) and correlations among these variables in the HCM delay were examined.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/10939687
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Authors:
- Park, Byungkyu
- Li, Chenyang
- Publication Date: 2011-5
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 327-333
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Serial:
- Computer-Aided Civil and Infrastructure Engineering
- Volume: 26
- Issue Number: 4
- Publisher: Blackwell Publishing
- ISSN: 1093-9687
- Serial URL: http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1467-8667
Subject/Index Terms
- TRT Terms: Highway capacity; Saturation flow; Signalized intersections; Stochastic processes; Traffic delays; Traffic estimation; Traffic models; Traffic volume
- Identifier Terms: Highway Capacity Manual
- Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 01337001
- Record Type: Publication
- Files: TRIS
- Created Date: Apr 18 2011 12:24PM