Simulation Introduction of microscopic simulation Introduction of simulation Introduction of microscopic simulation
What is Simulation? This is a fundamental and quantitative way to understand complex systems/phenomena which is complementary to the traditional approaches of theory and experiment. Modeling and Simulation (Mod/Sim) are concerned with powerful methods of analysis designed to exploit high performance computing. This approach is becoming increasingly widespread in basic research and advanced technological applications, cross cutting the fields of physics, chemistry, mechanics, engineering, and biology.
What is Simulation?
Why Simulation? • A real system may not be there (example: new sub-network) • A real system may be too difficult or too expensive to access • A real system may not be perturbed (example: accident)
Advantages of simulation • New policies, operating procedures, decision rules, information flows, etc, can be explored without disrupting ongoing operations of the real system • New hardware designs, physical layouts, transportation systems, etc, can be tested without committing resources for their acquisition. • Developing simulation model increases understanding of the system e.g. New traffic signal timing plan; new routing strategy
Advantages of simulation
Advantages of simulation
Simulation Research
Required Skills for Simulation Modeling
Steps in a Simulation Study
Problem Formulation
Conceptual Model
Data Collection and Input Modeling
Simulation Modeling
Types of Simulation
Time-Based Simulation
Event-Based Simulation
Why Traffic Simulation?
Why Traffic Simulation?
Deterministic Queuing?
Other Macroscopic/Mathematical Models?
Stochastic Queuing?
Empirical Model (HCM)?
Traffic Simulation Categories
Level of Details Categories
Microscopic Simulation
Mesoscopic Model
Macroscopic Model
Why Microscopic Simulation
Examples: Why Microscopic Simulation?
Why Microscopic Simulation: Spillback & Starvation
Why Microscopic Simulation: Blocking and Starvation
Why Microscopic Simulation: Blocking and Starvation
Why Microscopic Simulation: Individual Vehicle?
Why Microscopic Simulation: Individual Drivers?
Microscopic Simulation Programs
Microscopic Simulation Programs
Microscopic Simulation Programs
Microscopic Simulation Programs
Which one is better?
Which one is better? http://www.paramics-online.com/
Which one is better?
Which is Better? Models or Tools
Critical Issues
Appendix: List of Macroscopic Simulation Models with Weblinks
List of Macroscopic Simulation Models with Weblinks
Appendix: List of Mesoscopic Simulation Models with Weblinks
Appendix: List of Microscopic Simulation Models with Weblinks
List of Microscopic Simulation Models with Weblinks
List of Microscopic Simulation Models with Weblinks
List of Microscopic Simulation Models with Weblinks
List of Microscopic Simulation Models with Weblinks