User Guide and Model Documentation for SACSIM19 – June 2020 User Guide and Model Documentation for SACSIM19 June 30th, 2020 User Guide and Model Documentation for SACSIM19 – June 2020 1415 L Street, Suite 300 Sacramento, CA 95814 1-1 User Guide and Model Documentation for SACSIM19 – June 2020 tel 916.321.9000 1-2 User Guide and Model Documentation for SACSIM19 – June 2020 Acknowledgments ............................................................................................................................................. 1-14 1 Introduction ................................................................................................................................................. 1-1 SACSIM Version ..................................................................................................................................... 1-1 Version History ...................................................................................................................................... 1-4 Public Access ......................................................................................................................................... 1-4 Organization of the Report ................................................................................................................... 1-5 1.4.1 Chapter 1 Introduction ................................................................................................................ 1-5 1.4.2 Chapter 2 Model Overview .......................................................................................................... 1-5 1.4.3 Chapter 3 Model Structure .......................................................................................................... 1-5 1.4.4 Chapters 4 and 5 Land Use and Demographics ........................................................................... 1-5 1.4.5 Chapters 6, 7, and 8 Transportation Networks ........................................................................... 1-6 1.4.6 Chapter 9 Auto/Transit Cost and Pricing ..................................................................................... 1-6 1.4.7 Chapter 10 System Equilibration ................................................................................................. 1-6 1.4.8 Chapter 11 Sensitivity Tests ......................................................................................................... 1-7 1.4.9 Chapter 12 Model Calibration, Validation and Reasonableness Check ....................................... 1-7 2 Model Overview .......................................................................................................................................... 2-1 Key Concepts and Parameters .............................................................................................................. 2-1 Hardware and Software Requirements ................................................................................................. 2-4 2.2.1 Hardware ..................................................................................................................................... 2-4 2.2.2 Software ...................................................................................................................................... 2-5 Model Inputs ......................................................................................................................................... 2-7 2.3.1 Scenario ....................................................................................................................................... 2-7 2.3.2 Input ............................................................................................................................................ 2-8 2.3.3 daysim .......................................................................................................................................... 2-9 Model Outputs .................................................................................................................................... 2-11 Preparing a model run ........................................................................................................................ 2-12 2.5.1 Model run scenario structure .................................................................................................... 2-12 2.5.2 Setup for Model Run Pricing Parameters .................................................................................. 2-14 2.5.3 Start Scenario Model Run with Cube Voyager .......................................................................... 2-17 3 Model Structure .......................................................................................................................................... 3-1 1-3 User Guide and Model Documentation for SACSIM19 – June 2020 DAYSIM - Person Day Activity-Based Tour Simulation .......................................................................... 3-3 3.1.1 DAYSIM Terminology and Concepts ............................................................................................ 3-3 3.1.2 DAYSIM Structure and Flow ......................................................................................................... 3-8 Commercial Vehicle Travel .................................................................................................................. 3-26 External Travel .................................................................................................................................... 3-28 Trip Generation for I-X and X-I Travel ........................................................................................................ 3-31 3.3.1 Internal Trip Generation for External Work Travel Model ........................................................ 3-33 3.3.2 Internal Trip Generation for External Non-Work Travel Model ................................................ 3-34 3.3.3 Internal Trip Generation for Commercial and Airport Passenger Trips ..................................... 3-34 3.3.4 Trip Distribution for I-X and X-I Travel ....................................................................................... 3-35 3.3.5 Friction Factors and Deterrence for Work Trips ........................................................................ 3-36 3.3.6 Friction Factors and Deterrence for Non-Work Purposes ......................................................... 3-36 3.3.7 Trip Distribution for I-X and X-I Commercial Vehicle and Airport Trips ..................................... 3-37 3.3.8 Mode Split and Time-of-Travel for I-X and X-I Travel ................................................................ 3-38 3.3.9 Through Trips for X-X Travel ...................................................................................................... 3-39 Airport Passenger Ground Access Model ............................................................................................ 3-40 3.4.1 Introduction ............................................................................................................................... 3-40 3.4.2 Trip Generation for Internal Passengers .................................................................................... 3-42 3.4.3 External Passenger Generation Rates from Population ............................................................ 3-42 3.4.4 Enumeration of Passenger Survey Database ............................................................................. 3-43 3.4.5 Ground Access Mode Choice for Internal Passengers ............................................................... 3-44 3.4.6 Updated Time-of-Day Distribution of Airport Access ................................................................ 3-47 Vehicle Trip Table ................................................................................................................................ 3-48 3.5.1 Vehicle Trip Table Preparation and Assignment ........................................................................ 3-48 3.5.2 Trip Table Preparation ............................................................................................................... 3-49 3.5.3 Vehicle Trip Assignment ............................................................................................................ 3-51 Transit Assignment .............................................................................................................................. 3-58 3.6.1 Transit Path Building and Assignment ....................................................................................... 3-58 3.6.2 Transit Background Network ..................................................................................................... 3-58 3.6.3 Transit System Coding Structure ............................................................................................... 3-59 1-4 User Guide and Model Documentation for SACSIM19 – June 2020 3.6.4 Transit network ......................................................................................................................... 3-61 3.6.5 Routing ...................................................................................................................................... 3-61 3.6.6 Transit Assignment .................................................................................................................... 3-62 3.6.7 Drive Access to Transit .............................................................................................................. 3-62 3.6.8 Park-and-Ride Lot Assignment