The high prevalence of truck traffic and the crossings along the Canada–US border cause further challenges to accurately modeling dynamic trip patterns, route selection behavior and vehicle interactions. Time-varying origin-destination (OD) demand are being estimated to match available field data, and a Dynamic Traffic Assignment (DTA) based on TransModeler’s microscopic traffic simulation will be used to estimate a consistent set of congested travel times. The existing micro-simulation database in TransModeler is being expanded to the scope of the regional travel demand model, with a detailed representation of highway geography and traffic signal control in the region. TransModeler - Whatcom County Area-wide Micro-simulation ModelĬaliper is currently developing a microscopic traffic simulation model of Whatcom County, WA.
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