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In addition to data preparation and special generation aggregate models, there are four <br />major categories of disaggregate models in the Metropolitan Council's ABM. <br />1. Long -Term Models: The models in this category capture decisions with a longer <br />time horizon including the location of one's regular workplace, regular school <br />location, vehicle availability, and transit and toll transponder pass ownership <br />models. These decisions are modeled first since the outcome of these decisions <br />influences other components of travel including mode choice and time availability <br />for non -mandatory travel. <br />2. Daily Activity Patterns: The models in this category establish daily travel patterns <br />at the individual level. Related to this concept is the understanding that each <br />individual has a restricted amount of time per day that can be engaged in activities <br />and associated travel. The daily activity patterns are simulated through a series <br />of models including daily activity pattern, mandatory tour generation, school <br />escorting, joint non -mandatory tour participation and individual non -mandatory <br />tour generation models. <br />3. Tour Level Models: The models in this category incorporate interrelationship among <br />trips that are components of a "tour" which typically departs from home, visits one <br />or more activity locations, and then return home. <br />Hierarchical rules are established to identify the appropriate nature of the tour. For <br />instance, tours that include a mandatory destination such as work or school are <br />defined as a work -based tour irrespective of other destinations serviced as part <br />of this tour. The tour -level models provide an improved framework over trip -based <br />models to represent daily travel decisions since they account for previous and <br />subsequent trips within a tour. Overall, tour -based models account for information <br />on modes, time -of -day, group travel, and other characteristics of travel that are <br />clearly interrelated across trips within a tour. <br />4. Trip/Stop Level Models: Within each tour, non -primary stops are modeled as <br />intermediate stops. For tours with intermediate stops, separate models that <br />capture the destination of the stop, the mode of travel, and the time -of -day of travel <br />are developed. <br />These models are constrained by the choices already made at the tour -level and therefore, <br />allow for a more realistic decision -making process for every individual trip. <br />ANOKA COUNTY 2040 TRANSPORTATION PLAN UPDATE I CHAPTER 2 -TRANSPORTATION GOALS <br />11 <br />