ABSTRACT

Although the even load procedure described in Chapter 4 ensures even average loads of doj at the jth hourly max load point, it does not guarantee that the average load for individual vehicles at other stops will not exceed doj; therefore, the result may be overcrowding. In other words, the hourly max load point represents an average peak point at j, whereas the max load point for an individual vehicle can come at another stop and exceed doj. For a given time period, then, each vehicle may have a different max load point and a different observed average load across the entire vehicle route. The purpose of therst part of this chapter is to derive a timetable such that, on average, all vehicles will have even loads (equal to the desired occupancy) at the max load stop for each vehicle. The adjustments in the timetable are not intended for highly frequent urban services, in which the headway may be less than, say, 10 min or an hourly frequency of about six vehicles or more. The objective of therst part of this chapter (based on Ceder, 2001 and Ceder and Philibert, 2014) is to construct a timetable so as to avoid passenger-overcrowding situations (i.e., loads greater than doj).