Foreword

Traffic simulation software has become increasingly more popular as a traffic analysis tool used in transportation analyses.  One reason for this increase is the need to model and analyze the operation of complex transportation systems under congested conditions.  Where some analytical techniques break down under these types of conditions, simulation has the potential to successfully model these complex scenarios.  However, despite the widespread use of traffic simulation software, there are a variety of conflicting thoughts and practices on how simulation should be used.

The purpose of the Guidelines for Applying CORSIM Microsimulation Modeling Software is to provide more specific guidance for using CORridor SIMulation (CORSIM) traffic simulation software to conduct a transportation analysis using the process recommended by Volume III: Guidelines for Applying Traffic Microsimulation Modeling Software.  CORSIM is the core simulation and modeling component of the Traffic Software Integrated System (TSIS) tool suite.  The guidelines provide the reader with a seven-step process that begins with project scope and ends with the final project report.  The process is specific to using CORSIM and TSIS.  It is hoped that this document will assist the transportation community in creating a more consistent process in the use of CORSIM traffic simulation software.

This document serves as Volume IV in the FHWA Traffic Analysis Toolbox.  Other volumes currently in the toolbox include: Volume I: Traffic Analysis Tools Primer, Volume II: Decision Support Methodology for Selecting Traffic Analysis Tools, and Volume III: Guidelines for Applying Traffic Microsimulation Modeling Software.

The intended audience for this report includes the CORSIM simulation analyst, the reviewer of CORSIM simulation analyses, the procurer of CORSIM simulation services, and the researcher using CORSIM.

Regina McElroy,
Director
Office of Transportation Management