Train Timetable Buffer Time Setting Strategy and Affection

Robustness is one of the key requests for train timetable. Generally, the train is determined to operate according to the given time on timetable, but in practical cases, however, the ideal timetable calls for a robust time that capable of absorbing, as much as possible, delays or disturbances on daily operation. Which reflected on train timetable formation is add extra time beyond the given section running time and station stop time. Spontaneously, there are two main sections for each train path to add this extra robust time: operating period between station and station stay period. This paper mainly studied the two different strategies` characteristics, and researched the effect of train timetable structure under same extra time add which the extra time is added on section and stop period, and pointed train timetable extra time limitation factors under different strategies, discussed the two strategies advantages and disadvantages.