Analysis Procedures Manual Chapters 1-4

1 Analysis Procedures Manual Version 1 Original Publication Date: April, 2006 Last Update: February, 2020 Oregon Department of Transportation Transportation Development Division Planning Section Transportation Planning Analysis Unit Salem, Oregon Analysis Procedure Manual Version 1 ii Last Updated 02/2020 ACKNOWLEDGEMENTS The following individuals were contributors in the preparation of this Manual . Oregon Department of Transportation Kent Belleque, . Alexander Bettinardi, Rod Cathcart Don Crownover, Brian Dunn, Simon Eng, Christina Fera-Thomas Meghan Hamilton Mark Johnson, Chi Mai, Christina McDaniel-Wilson Joseph Meek III, Nancy Murphy Thanh Nguyen, Douglas Norval, Robert Nova Gary Obery, Peter Schuytema, Dorothy Upton, DKS Associates, Inc. John Bosket, Carl Springer, Bob Schulte CH2M Hill Craig Grandstrom, Copyright @ 2006 by the Oregon Department of Transportation.

2 Permission is given to quote and reproduce parts of this document if credit is given to the source. This project was funded in part by the Federal Highway Administration, Department of Transportation. The contents of this report reflect the views of the Oregon Department of Transportation, Transportation Planning Analysis Unit, which is responsible for the facts and accuracy of the information presented herein. The contents do not necessarily reflect the official views or policies of the Federal Highway Administration. Analysis Procedure Manual Version 1 iii Last Updated 02/2020 This Manual is provided to you by the Oregon Department of Transportation (ODOT) "as is" without warranty of any kind. ODOT makes no warranties, either express or implied, including, but not limited to the implied warranties of merchantability, fitness for a particular purpose, and noninfringement.

3 The entire risk as to the quality and performance of this information is with you. You are advised to test use of the information thoroughly before you rely on it. The author and ODOT disclaim all liability for direct, indirect or consequential damages, arising out of your use of the Manual . Analysis Procedure Manual Version 1 iv Last Updated 02/2020 Table of Contents 1 INTRODUCTION SEE APM VERSION 2 PREFACE AND CHAPTER 1 .. 1- 3 2 MANAGING Analysis PROJECTS SEE APM VERSION 2 CHAPTER 2 .. 1- 1 3 TRANSPORTATION SYSTEM INVENTORY - SEE APM VERSION 2 CHAPTER 3 .. 2- 1 4 DEVELOPING DESIGN HOUR VOLUMES - SEE APM VERSION 2 Chapters 5 AND 6 3-1 5 ASSESSING 4- 1 PURPOSE SEE APM VERSION 2 CHAPTER 4 .. 4- 1 CRASH Analysis - SEE APM VERSION 2 CHAPTER 4 .. 4- 1 PEAK HOUR FACTORS SEE APM VERSION 2 CHAPTER 5 .. 4- 1 ACCESS MANAGEMENT- SEE APM VERSION 2 CHAPTER 4.

4 4- 1 SIGHT DISTANCE- SEE APM VERSION 2 CHAPTER 4 .. 4- 1 MULTI-MODAL Analysis - SEE APM VERSION 2 CHAPTER 14 .. 4- 1 OTHER Analysis ISSUES/ Procedures SEE APM VERSION 2 PREFACE .. 4- 1 6 SEGMENT Analysis SEE APM VERSION 2 CHAPTER 11 .. 5- 1 7 INTERSECTION Analysis SEE APM VERSION 2 Chapters 12 AND 13 .. 6- 1 8 TRAFFIC SIMULATION MODELS .. 7- 1 PURPOSE .. 7- 1 TRAFFIC SIMULATION MODELING GENERAL CALIBRATION INSTRUCTIONS .. 7- 1 SIMTRAFFIC .. 7- 4 OVERVIEW .. 7- 4 SIMULATION CALIBRATION .. 7- 4 SIMULATION PREPARATION .. 7- 5 SIMULATION SETTINGS WINDOW .. 7- 6 SIMTRAFFIC PARAMETER 7- 9 SIMULATION EXECUTION .. 7- 12 SIMULATION OUTPUTS .. 7- 13 Analysis Procedure Manual Version 1 v Last Updated 02/2020 VISSIM - OVERVIEW .. 7- 1 PARAMICS - OVERVIEW .. 7- 2 CORSIM - OVERVIEW .. 7- 3 9 DETERMINING NEEDS SEE APM VERSION 2 CHAPTER 9.

5 8- 1 10 ANALYZING ALTERNATIVES SEE APM VERSION 2 CHAPTER 10 .. 9- 1 11 AIR AND NOISE TRAFFIC DATA SEE APM VERSION 2 CHAPTER 16 .. 10-1 12 TRAFFIC Analysis REPORTS .. 11-2 PURPOSE .. 11-2 BACKGROUND .. 11-2 TECHNICAL WRITING TIPS .. 11-2 DIAGRAMS AND ILLUSTRATIONS .. 11-3 TABLES .. 11-4 TECHNICAL MEMORANDUM .. 11-4 PURPOSE .. 11-4 11-4 DISTRIBUTION .. 11-5 TRAFFIC NARRATIVE REPORT .. 11-5 PURPOSE .. 11-5 PRODUCT .. 11-5 DISTRIBUTION .. 11-8 Analysis Procedure Manual Version 1 1- 1 Last Updated 02/2020 Analysis Procedure Manual Version 1 1- 2 Last Updated 02/2020 Table of Exhibits Exhibit 8-1 Simulation Construction and Application Flow Chart .. 7- 3 Exhibit 8-2 Example Vehicles Exited from Performance Report .. 7- 5 Exhibit 8-3 Default Lane Alignment .. 7- 7 Exhibit 8-4 Headway Factors .. 7- 8 Exhibit 8-5 SimTraffic Default Vehicle Parameters.

6 7- 10 Exhibit 8-6 SimTraffic Default Driver Parameters .. 7- 11 Exhibit 8-7 ODOT Green React Times .. 7- 11 Exhibit 8-8 ODOT Intervals Defaults .. 7- 12 Exhibit 8-9 Sample Queuing and Blocking Report .. 7- 15 Exhibit 8-10 Sample Queuing Diagram .. 7- 16 Exhibit 8-11 Sample Performance Report .. 7- 17 Exhibit 8-12 Sample Arterial report .. 7- 17 Exhibit 8-13 Animated Vehicle and Signal Tracking .. 7- 18 Exhibit 8-14 Example Queue Length Static Report .. 7- 1 Analysis Procedure Manual Version 1 1- 3 Last Updated 02/2020 INTRODUCTION See APM Version 2 Preface and Chapter 1 Analysis Procedure Manual Version 1 1- 1 Last Updated 02/2020 1 MANAGING Analysis PROJECTS SEE APM VERSION 2 CHAPTER 2 Analysis Procedure Manual Version 1 2- 1 Last Updated 02/2020 2 TRANSPORTATION SYSTEM INVENTORY - SEE APM VERSION 2 CHAPTER 3 Analysis Procedure Manual Version 1 3- 1 Last Updated 02/2020 3 DEVELOPING DESIGN HOUR VOLUMES - SEE APM VERSION 2 Chapters 5 AND 6 Analysis Procedure Manual Version 1 4- 1 Last Updated 02/2020 4 ASSESSING PERFORMANCE Purpose SEE APM VERSION 2 CHAPTER 4 Crash Analysis - SEE APM VERSION 2 CHAPTER 4 Peak Hour Factors SEE APM VERSION 2 CHAPTER 5 Access Management- SEE APM VERSION 2 CHAPTER 4 Sight Distance- SEE APM VERSION 2 CHAPTER 4 Multi-Modal Analysis - SEE APM

7 VERSION 2 CHAPTER 14 Other Analysis Issues/ Procedures SEE APM VERSION 2 PREFACE Analysis Procedure Manual Version 1 5- 1 Last Updated 02/2020 5 SEGMENT Analysis SEE APM VERSION 2 CHAPTER 11 Analysis Procedure Manual Version 1 6- 1 Last Updated 02/2020 6 INTERSECTION Analysis SEE APM VERSION 2 Chapters 12 AND 13 Analysis Procedure Manual Version 1 7- 1 Last Updated 02/2020 7 TRAFFIC SIMULATION MODELS Purpose Traffic simulation models are complex tools that can provide valuable information on the performance and potential improvement of transportation systems. Traffic simulation models are in a constant state of improvement and accordingly this chapter attempts to be adaptive with the changes in the industry. This chapter currently presents instruction on calibration of microsimulation models created in Trafficware s SimTraffic and a brief overview of the other simulation models and parameters used in ODOT projects.

8 Topics covered include: Traffic Simulation Modeling General Calibration Instructions SimTraffic Overview and Calibration Instructions VISSIM Overview Paramics - Overview CORSIM Overview Traffic Simulation Modeling General Calibration Instructions Traffic simulation models are computer programs that simulate traffic movements over a user-defined transportation network and present the results via animation and reports. The degree of user control over the simulation and the types of facilities that can be modeled will vary depending on the program being used. These should not be confused with urban travel demand models (Chapter 6), which use current and projected land use and transportation network data to estimate current and future travel demand and traffic patterns. Traffic simulation models (meso or microscopic) are complex tools that generally require more labor than programs that perform capacity Analysis at a macro level.

9 Because of this, they are generally only used when the use of other types of Analysis tools will not be adequate for a given project. Simulation models offer a greater degree of flexibility than most programs designed specifically for capacity Analysis and can be used for a wide range of Analysis needs such as examining the interactions between different modes of transportation, modeling the operations of HOV lanes or bus priority systems and evaluating operations through measures of effectiveness not offered by most other types of Analysis programs. Simulation models are also very useful for presentations, especially for those given to audiences lacking technical knowledge of traffic Analysis , because it provides a visual basis for evaluating operations that most people can easily relate to and understand. Simulation models are commonly used by ODOT to analyze corridors or networks under congested conditions, where upstream or downstream operations have a significant influence on actual intersection operations ( , intersection blockage from queue spillback).

10 It should be noted that simulation models use different methodologies for estimating queue lengths than other Procedures described in this Manual . These methodologies are typically based on observations of queues experienced during simulation, which are influenced by parameters such as driver characteristics, lane changing behavior and various traffic flow interactions. Capturing the impact of up and downstream operations on vehicle queues can make these models very effective at estimating queue lengths, but underscores the importance of good model calibration. General Analysis Procedure Manual Version 1 7- 2 Last Updated 02/2020 guidelines for the application of simulation models have been published by the Federal Highway Administration, which can be found at the FHWA website under traffic Analysis tools. Depending on the specific program used, there may be numerous parameters that can be manipulated by the user to create a system that most accurately represents the one being analyzed.