February 2023: Tessa Hayman explains different options for multiple centroid connections and the effects of different parameters and assignment algorithms.
January 2021: In Technical Note #53, we gave some tips on how to modify the cost for static assignment based on the vehicle type. In this month’s pro tip, Marga Delgado explains how to do it per trip purpose.
February 2019: Mohammad Saifuzzaman explores the use of adjustment weighting functions to improve the GEH and not just the R2.
January 2018: Margarida Delgado explains how the Distribution and Modal Split steps are now split into two separate processes to give you greater flexibility when choosing which model to work with, and to give you more control at each step.
March 2017: Marga Delgado shows you how to use Contents to group matrices into subfolders, which is particularly convenient when working with multiple matrices.
Use this approach for estimating the effect on distribution and mode split of operational changes in the transit system, such as the introduction of signal priority and reserved lanes along a corridor.
August 2014: Margarida Delgado explains the advantages of the chain structure of the four-step model experiment in Aimsun.