This microscopic analysis was carried out by extracting the area to be studied in detail from the mesoscopic model and using more rigorous analysis procedures of a micro traffic simulation model. The third level of analysis is microscopic analysis which dealt with the detailed operational characteristics of the transportation network at specific locations, along the corridor, or within isolated areas of the overall corridor. The trips for each of the AM and PM peak periods within the study area are developed by extracting the trips from the regional travel demand model using hourly assignments. This level of analysis allowed for an examination of travel and transportation network characteristics during peak periods.
This step down process provides the necessary integration of macroscopic and mesoscopic analysis procedures to ensure analysis consistency and compatibility. DTA procedures have recently been tested successfully in the Atlanta metropolitan 20-county region to determine its viability in large scale applications. This DTA process allowed for an examination of queues and delays associated with congestion. Project Description: This mesoscopic analysis was carried out by using dynamic traffic assignment (DTA) to address the issue of motorist selection of differing routes during periods of congestion along with the changing of these routes within the congested time period itself.
Sponsor: Atlanta Regional Commission (ARC)Īpplication Used: Cube Voyager/TP+, Cube Avenue DTA, VISSIM microsimulation Location Modeled: Atlanta, Georgia, area bounded on the north by Ponce de Leon Avenue, on the south by Glenwood Avenue, on the east by Moreland Avenue and on the west by I-75/85 Downtown Atlanta CBD Project Title: Atlanta’s Memorial Drive DTA Case Study, part of ARC’s Strategic Regional Thoroughfare Plan/Regional Thoroughfare Network The list of examples was collected from public sector agencies, academia, and consultants to provide examples from a broad cross-section of application areas that will assist students in applying DTA techniques to conduct traffic analyses in their regions. The Federal Highway Administration assembled this list of recent examples (2009 and later) of DTA analyses as a supplement to its Foundations of Dynamic Traffic Assignment Workshop. Foundations of Dynamic Traffic Assignment (DTA) Workshop: Selected Recent DTA Analyses Table of Contents Traffic Analysis Toolbox Volume XIV: Guidebook on the Utilization of Dynamic Traffic Assignment in Modelingī.
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