System Management Network Environment Vehicle Characteristics Traveler Characteristics System Traveler Influencing Factors Traveler: traveler characteristics, vehicle characteristics System: network, environment, system management Of interest only as related to behavioral inputs and outputs Behavioral Algorithms –Define traveler behavior within the core model Influencing Factors –Components of the system, which influence traveler behavior –Used as vehicle for soliciting stakeholder input System State –Time-specific interaction mechanisms of traffic components and traveler behaviors * See following pages for details Simulation Model Framework Influencing Factors

Scenarios Definition: A set of influencing factors, which a user wants to model, independent of the state of traffic on the system. This workshop uses scenarios as means of identifying requirements of simulation models. It makes the assumption that most users think about their model needs in terms of modeling specific scenarios, which are defined by sets of influencing factors. Three examples of scenarios are attached. Participants should attempt to describe scenarios using the influencing factor categories described in the following pages. Each category contains room to add relevant factors. The objectives of this exercise are: To identify scenarios/situations that are the most common problem areas for users To identify existing data sets that can be used to develop and validate algorithms that can accurately represent traffic conditions To identify available algorithms that address the identified problem areas Instructions Situations Definition: A set of influencing factors, which a user wants to model, including the state of traffic on the system. A scenario contains many situations of potential interest. This workshop uses situations as a means of understanding different system states of a scenario which may be challenging to model.