Bus bunching often occurs in public transit system, resulting a series of problems such as poor punctuality, long waiting time and low service quality. In this paper, we explore the influence discrete distribution traffic operation state on dynamic evolution bus bunching. Firstly, use self-organizing map (SOM) to find threshold analyze factors that affect based GPS data No. 600 line Xi'an. Then...

A system analysis approach is presented for investigation of train operations in railway stations based on network, timetable and train detection data. The estimated blocking times, buffer times and track occupancies are compared with real operations data recorded automatically by track circuits. Statistical analysis of train operations between two Dutch major railway stations in The Hague clea...

This paper compares design approaches for achieving a headway control functionality for trucks and buses. The approaches considered are fuzzy logic [1], H∞ [2], and a strategy based on headway range and its derivative (range-rate) [3]. For heavy vehicles, the control unit has a number of nonlinearities to compensate for, including full accelerator saturation, engine characteristics, and a limit...

In 1993, Williamson noted his preference for intertemporal models rather than dynamic models of vertical integration. This paper provides a short review of some of the recent work on governance adaptation. It suggests that while empirical data and methods exist to make headway on the dynamic problems, the theoretical models have not. It concludes that more must be done on the theoretical front ...