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| all costs whether considered or not |
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| only costs considered by drivers |
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| traffic. Vehicle traffic and pedestrian traffic |
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| facilities. Travel paths and terminal facilities |
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| Trip Generation, Trip Distribution, Mode Choice, and Trip Assignment |
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| Where do trips start and end? |
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| What facilities do trips use? |
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| We can identify and calibrate numeric values to use in predicting trips, Traveler behavior remains constant, Land use conditions will remain consistent, and Full day trips-everyone ends where they started. |
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| Wardrop's First Principle |
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| Network will reach an equilibrium. At Equilibrium, no user can improve the trip time by unilaterally changing routes |
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| Wardrop's Principle of System Optimization |
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| Travelers will choose their routes so that the total system travel time over all possible routes is minimized |
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| Wardrop's Principle of User Optimization |
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| Travelers will choose their routes for best individual travel time |
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| Usefulness or Attractiveness of a mode |
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| Expresses choices between modes as a function of economic factors |
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