Transportation Engineering - Vol 1 | 8. Trip Distribution by Abraham | Learn Smarter
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Knowledge
8. Trip Distribution

Trip distribution involves the process of allocating generated trips to various destinations based on the choice of travel purpose. This chapter discusses essential methods for trip distribution, including the growth factor model and gravity model, highlighting their calibration and application in transportation planning.

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Sections

  • 8

    Trip Distribution

    Trip distribution is the process of allocating generated trips from various origins to different destinations based on established models, crucial for transportation planning.

    Learning Practice

  • 8.1

    Overview

    This section introduces trip distribution, the process of allocating generated trips from one zone to multiple destination zones, highlighting models used for this purpose.

    Learning Practice

  • 8.2

    Definitions And Notations

    This section defines essential terms and notations used in the trip distribution process of transportation engineering.

    Learning Practice

  • 8.2.1

    Trip Matrix

    The trip matrix is a two-dimensional representation of travel patterns across zones in a study area, detailing trips between origins and destinations.

    Learning Practice

  • 8.2.2

    Generalized Cost

    This section discusses the concept of generalized cost in trip distribution models, which encompasses all disutility factors such as travel time, costs, and convenience.

    Learning Practice

  • 8.3

    Growth Factor Methods

    This section discusses growth factor methods used in trip distribution, focusing on uniform and doubly constrained growth factor models.

    Learning Practice

  • 8.3.1

    Uniform Growth Factor

    The uniform growth factor model applies a single growth rate across all zones to estimate trip distribution when only general growth data is available.

    Learning Practice

  • 8.3.2

    Example

    This section presents an example of applying the growth factor model to calculate the expanded origin-constrained trip table based on given trip data.

    Learning Practice

  • 8.3.3

    Doubly Constrained Growth Factor Model

    The doubly constrained growth factor model utilizes two sets of growth factors for zones to ensure that trip productions and attractions are balanced.

    Learning Practice

  • 8.3.4

    Advantages And Limitations Of Growth Factor Model

    This section discusses the advantages and limitations of the growth factor model used in trip distribution modeling.

    Learning Practice

  • 8.4

    Gravity Model

    The gravity model is a method for distributing trips between origins and destinations based on their characteristics and the distance between them, analogous to Newton’s law of gravitation.

    Learning

  • 8.5

    Summary

    This section summarizes key concepts related to trip distribution methods in transportation planning.

    Learning Practice

  • 8.6

    Problems

    This section presents problems to apply concepts of trip distribution using various models.

    Learning Practice

References

8.pdf

Class Notes

Memorization

What we have learnt

  • Trip generation is the proc...
  • Trip distribution is the se...
  • Two key methods for trip di...

Final Test

Revision Tests