An approach to estimating and updating origin-destination matrices based upon traffic counts preserving the prior structure of a survey matrix
Javier Doblas and
Francisco G. Benitez
Transportation Research Part B: Methodological, 2005, vol. 39, issue 7, 565-591
Abstract:
The scope of this paper is eminently practical. It addresses the problem of estimating and updating observed O-D matrices based upon available link flow information by means of the non-linear programming approach corresponding to the Augmented Lagrangian Function (ALM). In this way, one can estimate O-D matrices in a way which uses an efficient algorithm that minimizes the amount of stored information required for solving large-sized problems. A solution algorithm is provided, which has been completely developed and designed to be used within commercial assignment codes. The limitations and the features of these programmes have, in a natural way, conditioned the solution adopted for the model proposed. The case of updating a trip matrix, from a home-based survey, of a real problem corresponding to an existing city is analysed. For this application case two methodologies are reviewed; the first one does not incorporate constraints related to the total number of trips, the zonal productions and attractions, or individual O-D pairs; the second one does take them into account. The results obtained from the application of the proposed method to a prior O-D trip matrix, show huge differences with respect to the results yielded when the adjustment process does not limit the variations of the single terms (O-D pairs) with upper or lower boundaries. This comparison is carried out and based upon the wide spread Spiess's Gradient Algorithm. The graphical results depict the drastic contrasts observed, related to the distortion experienced by the information contained in the O-D trip matrix of a home-based survey, when using this methodology and the one proposed here.
Date: 2005
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (14)
Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0191-2615(04)00103-1
Full text for ScienceDirect subscribers only
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:eee:transb:v:39:y:2005:i:7:p:565-591
Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/supportfaq.cws_home/regional
https://shop.elsevie ... _01_ooc_1&version=01
Access Statistics for this article
Transportation Research Part B: Methodological is currently edited by Fred Mannering
More articles in Transportation Research Part B: Methodological from Elsevier
Bibliographic data for series maintained by Catherine Liu ().