Publication

Exploring the use of DTA for origin-destination matrix estimation

Abstract

Traffic simulation is more and more widely used and a helpful decision tool for planer and managers. Several tools exist and could be grouped in two main families: Macrosimulators with aggregate vision of the traffic in the network and microsimulators which provide individual data. These two tools got different approaches of modeling traffic and could be use for different applications, but in some case, links or interactivities are observed depending on the inputs needed. Unfortunately and due to the differences between models, these links are not lacking of compatible problems. This paper presents a study with an innovative dynamic approach of the OD matrix determination process comparing to the usual static one. Evaluation and tests of the proposed method are presented to quantify the improvement. Using dynamic traffic assignment, developing a historical data base representing the traffic network behavior during time and finding a new matrix adjustment fitting with the data used, are the main innovative contributions of this work.

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Related concepts (27)
Traffic flow
In mathematics and transportation engineering, traffic flow is the study of interactions between travellers (including pedestrians, cyclists, drivers, and their vehicles) and infrastructure (including highways, signage, and traffic control devices), with the aim of understanding and developing an optimal transport network with efficient movement of traffic and minimal traffic congestion problems.
Data
In common usage and statistics, data (USˈdætə; UKˈdeɪtə) is a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally. A datum is an individual value in a collection of data. Data is usually organized into structures such as tables that provide additional context and meaning, and which may themselves be used as data in larger structures.
Traffic
Traffic comprises pedestrians, vehicles, ridden or herded animals, trains, and other conveyances that use public ways (roads) for travel and transportation. Traffic laws govern and regulate traffic, while rules of the road include traffic laws and informal rules that may have developed over time to facilitate the orderly and timely flow of traffic. Organized traffic generally has well-established priorities, lanes, right-of-way, and traffic control at intersections.
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