The transfer time between two lines at a stop is normally a combination of the transfer walk time taken from the transfer walk time matrix (User Manual: Properties and options of stops) and the random wait time for a trip of the successor line. This results from the fundamental model assumption that passengers a priori have no information on the exact departure times of the lines, but only know their in-vehicle times and headways.
In some cases, however, it is desirable to model that the transfer time between two lines is not stochastic, but assumes a fixed value. This is particularly important in networks with longer headways, in which the existence of coordinated connections is nevertheless assumed.
In this case, for a pair of time profiles at a stop, a so-called matched transfer can be defined. Transfers from one time profile (User Manual: Properties and options of stops) to the other then require precisely the specified duration each time (User Manual: Headway-based assignment: Search tab).
