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Restructuring public transport through Bus Rapid TransitAn international and interdisciplinary perspective$
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Juan Carlos Munoz and Laurel Paget-Seekins

Print publication date: 2016

Print ISBN-13: 9781447326168

Published to Policy Press Scholarship Online: September 2016

DOI: 10.1332/policypress/9781447326168.001.0001

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BRRT: adding an R for reliability

BRRT: adding an R for reliability

(p.317) Seventeen BRRT: adding an R for reliability
Restructuring public transport through Bus Rapid Transit

Felipe Delgado

Juan Carlos Munoz

Ricardo Giesen

Policy Press

BRT has risen as an alternative to rail potentially offering the same level of service at a reduced cost, providing fast and frequent services, thus reducing waiting time for passengers and improving comfort. However, operations are still affected by traffic signals and demand fluctuations affecting the regularity of bus headways inducing bus bunching. Keeping regular headways in high frequency services is difficult and substantially worsens the level of service generating problems for the users, operators and the authority. To overcome this problem, different control strategies have been proposed. In this chapter we introduce a Holding in Real-Time optimization model. We compare this strategy against local holding strategies and discuss the data requirements and technology necessary for a complete implementation of the strategy. We present two case studies in order to highlight the benefits of this strategy: i) a simulation experiment and ii) a pilot program run in one service of the Transantiago system in Santiago, Chile. Results show that implementing control strategy that extensively considers its effects in time and space along the route significantly improves waiting time, comfort and reliability. Finally, we discuss the main challenges in the implementation of such a strategy in real operations.

Keywords:   holding strategy, bus bunching, real time control

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