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DEFINITION:
A computer program that uses mathematical models to conduct experiments with traffic events on a transportation facility or systems over extended period.

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The Output of Traffic Simulation Software

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The Output of Traffic Simulation Software

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3D representation of traffic simulation by Paramics Modelller software

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Introduction to Simulation of Transportation

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Introduction to Simulation of Transportation

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The simulation of transportation systems is the mathematical modeling of transportation systems through the application of computer software to help better in planning, designing and operating transportation systems. Traffic simulation models are used to evaluate the impacts of changes in traffic volumes and transportation network characteristics (capacity, signal timing, etc.) on traffic flow patterns (vehicle speeds, acceleration, and delay). A number of the models are capable of calculating changes in emissions resulting from changes in traffic characteristics.

Definitions
Transportation modeling and simulation aims at the design of an efficient infrastructure and service to meet our needs for accessibility and mobility. At its heart is good understanding of human behavior that includes the identification of the determinants of behavior and the change in human behavior when circumstances change either due to control (e.g., policy actions), trends (e.g., demographic change), or unexpectedly (e.g., disasters). This is the key ingredient that drives most decisions in transportation planning and traffic operations. Since transportation systems are the backbone connecting the vital parts of a city (a region, a state or an entire country), in-depth understanding of transportation-related human behavior is essential to the planning, design, and operational analysis of all the systems that make a city function.