Abstract
Two methods used to evaluate the suitability of a train’s scheduled section travel time (TSSTT) are theoretical modeling and data analysis. The first is suitable for newly constructed railway projects, the second can reveal the reliability of the train section running time (TSRT) under an instruction of TSSTT in cases where the train operation data are provided. A suitability evaluation method of TSSTT is proposed by calculating the possibility that a train completes a task within the time windows, centering on the TSSTT given in advance. The TSRTs between two adjacent stations are classified into four groups based on whether the train dwells at the two end stations of the railway section, and then subdivided secondly into subgroups by the instruction of TSSTT given. The kurtosis of each subgroup data of TSRT is larger than 3, so Weibull distribution is selected to fit the TSRT distribution of subgroup data due to good fitness based on root measurement of the least square (SRLSM). A busy high-speed railway line in the Wuhan area of China is used to validate the presented approach. Each railway section has its own suitable TSSTT in which TSRT might achieve 96% reliability of arriving within 2.5 minutes centering on suitable TSSTT, otherwise which might not obtain 10% reliability.
Highlights
A working diagram of railway system specifies wagon routing, start time, and time consumption of each train at each component of railway network, and it gives trains’ scheduled section travel time (TSSTT) between two adjacent stations and dwelling time at each station
The actual train actual section running time (TSRT) and dwelling time in stations are affected by various factors, such as weather, power supply, train passenger capacity, passenger organization mode, train control system, and even the working diagram itself
TSSTT should meet the demands of compiling a working diagram at the network level under different passenger needs, and should consider energy conservation and environmental protection while ensuring that the TSRT on the same railway section falls within the neighborhood of TSSTT
Summary
A working diagram of railway system specifies wagon routing, start time, and time consumption of each train at each component of railway network, and it gives trains’ scheduled section travel time (TSSTT) between two adjacent stations and dwelling time at each station. TSRT based on traction calculation is determined by equations of motion combined with the relationship between train tractive and braking forces, the sum of mechanical and aerodynamic resistances, and force caused by the track gradient, which reflect the train’s section traction, idling, and brake operation process [16,17,18,19] Noise factors such as weather and power supply [9] on the railway line are considered less in the calculation process. Train delays are caused by weather, electricity supply, train capacity, passenger organization, train-operation control, the train working diagram, and other reasons, but the negative exponential distribution of delaying trains does not reveal relationship between late arrivals and causes of delays, and parameters of negative exponential distribution must be reevaluated after adjusting trains’ working diagram.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
