Effect of Guaranteed Emergency Braking Rate and Gradient on Turnback Headway Time in Metro Lines

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Modern metro lines deploy Communication-Based Train Control (CBTC), which uses moving block that allows shorter headway times. Maximum operation speed, traction package's delays and reaction times, guaranteed emergency brake rate (GEBR), track gradients, and switch locations affect the headway time. This paper focuses on the GEBR (from 0.6 to 1.1 m/s2) and track gradient values' (±4.0% with 0.5 steps) effect on the headway time. One hundred two combinations of both parameters are used in simulations carried out with Hi-SimuX Rail Simulation Suite, which can calculate safe braking distance as per IEEE standards. The paper quantifies the effects of the GEBR and the gradient values on the achieved headway time on a metro line that shows that GEBR, gradient, GEBRGradient might affect the headway respectively up to 43.83%, 43.17%, 51.5%. Also, a formula was produced defining the relationship between headway time, the GEBR, and gradient values.

Original languageEnglish
Title of host publication2021 13th International Conference on Electrical and Electronics Engineering, ELECO 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages52-56
Number of pages5
ISBN (Electronic)9786050114379
DOIs
Publication statusPublished - 2021
Event13th International Conference on Electrical and Electronics Engineering, ELECO 2021 - Virtual, Bursa, Turkey
Duration: 25 Nov 202127 Nov 2021

Publication series

Name2021 13th International Conference on Electrical and Electronics Engineering, ELECO 2021

Conference

Conference13th International Conference on Electrical and Electronics Engineering, ELECO 2021
Country/TerritoryTurkey
CityVirtual, Bursa
Period25/11/2127/11/21

Bibliographical note

Publisher Copyright:
© 2021 Chamber of Turkish Electrical Engineers.

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