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- W223031487 abstract "The recent application of new technologies, such as GPS tracking, mobile location, video image processing and Bluetooth sensors, leads to the availability of two new types of data sets: 1) Tactical Trajectory data: data available in a relatively small area, where for every single vehicle every dt we get the position expressed in coordinates (X,Y,Z) (one example of this trajectory data available is the NGSIM data set); and 2) Strategic Trajectory data: data available for a large area that determines the different routes (partial or complete) of a subset of vehicles. This data will allow the application of validation at the level of use of routes. The objective of this paper is to present a framework for the validation of traffic models (microscopic or mesoscopic simulation) based on trajectory data; this will either determine whether the tactical trajectories output from a dynamic traffic model (in which case it is only available in microsimulation) is statistically equal to the trajectory data set or, at the network level, to determine whether the strategic trajectories from a subset of vehicles represent a sample of the used routes calculated by the Dynamic Traffic Assignment module of a traffic model. The statistical technique evaluated in this framework is based on functional data analysis techniques, where the evaluation consists in determining whether two sets of curves are statistically equal or different. Functional data analysis techniques were developed mainly by Ramsay and Silverman and included a large number of “classic” statistics techniques that were then applied to functional data. The trajectory data used has been extracted from NGSIM data set." @default.
- W223031487 created "2016-06-24" @default.
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- W223031487 date "2011-01-01" @default.
- W223031487 modified "2023-09-23" @default.
- W223031487 title "Framework for Trajectory Data Validation: NGSIM Case" @default.
- W223031487 hasPublicationYear "2011" @default.
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