Artículo de revista
Comparison of dynamic control strategies for transit operations
Fecha
2013Registro en:
Transportation Research Part C 28 (2013) 101–113
DOI: 10.1016/j.trc.2012.12.010
Autor
Muñoz, Juan Carlos
Cortés Carrillo, Cristián
Giesen, Ricardo
Sáez Hueichapán, Doris
Delgado, Felipe
Valencia, Francisca
Cipriano, Aldo
Institución
Resumen
Real-time headway-based control is a key issue to reduce bus bunching in high frequency
urban bus services where schedules are difficult to implement. Several mechanisms have
been proposed in the literature, but very few performance comparisons are available. In
this paper two different approaches are tested over eight different scenarios. Both methodologies
solve the same problem, the former based on a deterministic optimization over a
long-term rolling horizon, while the latter proposes a hybrid predictive approach considering
a shorter horizon and a stochastic evolution of the system. The comparison is conducted
through scenarios that include three different dimensions: (i) bus capacities
which can be reached or not, (ii) service frequencies, considering high and medium
frequency services and (iii) different load profiles along the corridor. The results show that
the deterministic approach performs better under scenarios where bus capacity could be
reached frequently along the route while the hybrid predictive control approach performs
better in situations where this does not happen.