United States Department of Transportation
i
Active transportation and demand management (ATDM) trajectory-level validation state of the practice review.
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2016-04-15
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[PDF-3.64 MB]
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TRIS Online Accession Number:1645932
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NTL Classification:NTL-INTELLIGENT TRANSPORTATION SYSTEMS-INTELLIGENT TRANSPORTATION SYSTEMS
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Abstract:This state of the practice review is a literature and industry review of existing vehicle trajectory datasets, vehicle trajectory collection methods, and traffic simulation model validation techniques. This report has the following four sections and presents the current state of the practice, as well as advances and knowledge gaps in trajectory validation, a novel field: • In the first section, existing vehicle trajectory datasets have been identified and categorized by source, purpose, and relevance to this project among other typologies. • In the second section, existing vehicle trajectory collection methods and tools are presented as well as innovative trajectory collection methods from industries beyond transportation. Even though video detection has seen significant advances in the last 10 years and it is ready for commercial applications, project research indicates that it has a barrier of entry that cannot be met in this project given the available resources and the required data accuracy. • In the third section, trajectory validation processes and tools are presented including computational engines, and spreadsheet-based tools developed for the purpose of validating traffic-simulation models at both aggregate and disaggregate levels. • In the final fourth section, validation efforts, cases where simulation models, algorithms, and logic have been validated at the disaggregate level are documented.
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