Abstract
Based on the reliability budget and percentile travel time (PTT) concept, a new travel time index named combined mean travel time (CMTT) under stochastic traffic network was proposed. CMTT here was defined as the convex combination of the conditional expectations of PTT-below and PTT-excess travel times. The former was designed as a risk-optimistic travel time index, and the latter was a risk-pessimistic one. Hence, CMTT was able to describe various routing risk-attitudes. The central idea of CMTT was comprehensively illustrated and the difference among the existing travel time indices was analyzed. The Wardropian combined mean traffic equilibrium (CMTE) model was formulated as a variational inequality and solved via an alternating direction algorithm nesting extra-gradient projection process. Some mathematical properties of CMTT and CMTE model were rigorously proved. Finally, a numerical example was performed to characterize the CMTE network. It is founded that that risk-pessimism is of more benefit to a modest (or low) congestion and risk network, however, it changes to be risk-optimism for a high congestion and risk network.
Similar content being viewed by others
References
FRANK H. Shortest paths in probabilistic graphs [J]. Operations Research, 1969, 17(4): 583–599.
FAN Y, KALABA R, MOORE J. Arriving on time [J]. Journal of Optimization Theory and Application, 2005, 127(3): 497–513.
LEVY H. Stochastic dominance: Investment decision making under uncertainty [M]. New York: Springer, 2006: 147–152.
NIE Y, WU X. Shortest path problem considering on-time arrival probability [J]. Transportation Research Part B, 2009, 43(6): 597–613.
NIE Y, WU X. Reliable a priori shortest path problem with limited spatial and temporal dependencies [C]// Proceedings of the 18th International Symposium on Transportation and Traffic Theory, Hong Kong. Springer, 2009: 169–195.
NIE Y. Multi-class percentile user equilibrium with flow-dependent stochasticity [J]. Transportation Research Part B, 2011, 45(10): 1641–1659.
HALL R W. The fastest path through a network with random time-dependent travel time [J]. Transportation Science, 1986, 20(3): 182–186.
WU X, NIE Y. Modelling heterogeneous risk-taking behaviour in route choice: A stochastic dominance approach [J]. Transportation Research A, 2011, 45(9): 896–915.
LO H K, TUNG Y K. Network with degradable links: Capacity analysis and design [J]. Transportation Research Part B, 2003, 37(4): 345–363.
LO H K, LUO X W, SIU B W Y. Degradable transport network: Travel time budget of travellers with heterogeneous risk aversion [J]. Transportation Research Part B, 2006, 40(9): 792–806.
ARTZNER P, DELBAEN F, EBER J M, HEATH D. Coherent measures of risk [J]. Mathematical Finance, 1999, 9(3): 203–228.
CHEN A, JI Z W. Path finding under uncertainty [J]. Journal of Advanced Transportation, 2005, 39(1): 19–37.
SHAO H, LAM W H K, TAM M L. A reliability-based stochastic traffic assignment model for network with multiple user classes under uncertain in demand [J]. Network and Spatial Economics, 2006, 6(3/4): 313–332.
SIU B W Y, LO H K. Doubly uncertain transport network: Degradable link capacity and perception variation in traffic conditions [J]. Transportation Research Record, 2006, 1964: 59–69.
SHAO H, LAM W H K, TAM M L, YUAN X M. Modelling rain effects on risk-taking behaviours of multi-user classes in road networks with uncertainty [J]. Journal of Advanced Transportation, 2008, 42(3): 265–290.
LAM W H K, SHAO H, SUMALEE A. Modelling impacts of adverse weather conditions on a road network with uncertainties in demand and supply [J]. Transportation Research Part B, 2008, 42(10): 890–910.
CHEN A, ZHOU Z. The alpha-reliable mean-excess traffic equilibrium model with stochastic travel times [J]. Transportation Research Part B, 2010, 44(4): 493–513.
ROCKAFELLAR R T, URYASEV S. Optimization of conditional value-at-risk [J]. Journal of Risk, 2000, 2(3): 21–41.
FOSGERAU M, KARLSTROM A. The value of reliability [J]. Transportation Research Part B, 2010, 44(1): 38–49.
FOSGERAU M, ENGELSON L. The value of travel time variance [J]. Transportation Research Part B, 2011, 45(1): 1–8.
ORDONEZ F, STIER-MOSES N E. Wardrop equilibria with risk-averse users [J]. Transportation Science, 2010, 44(1): 63–86.
NG M W, SZETO W Y, WALLER S T. Distribution-free travel time reliability assessment with probability inequalities [J]. Transportation Research Part B, 2011, 45(6): 852–866.
GERVAIS S, HEATON J B, ODEAN T. Overconfidence, investment policy, and executive stock options [R]. Rodney L. White Center for Financial Research Working Paper No. 15-02, 2002.
BILINGSLEY P. Probability and measure [M]. New York: John Wiley and Sons, Inc., 1995: 359–363.
FACCHINEI F, PANG J S. Finite-dimensional variational inequalities and complementarity problems [M]. New York: Springer, 2003: 41–46.
NAGURNEY A. Network economics: A variational inequality approach [M]. Dordrecht: Kluwer Academic Publishers, 1993: 14–15.
HAN D. A modified alternating direction method for variational inequation problems [J]. Applied Mathematics and Optimization, 2002, 45(1): 63–74.
KORPELEVICH G M. The extra-gradient method for finding saddle points and other problems [J]. Matecon, 1976, 12: 747–756.
HAN Ji-ye, XIU Nai-hua, QI Hou-duo. Nonlinear complementarity theory and algorithms [M]. Shanghai: Shanghai Scientific & Technical Publishers, 2006: 132–141. (in Chinese)
ZHOU Z, CHEN A. Comparative analysis of three user equilibrium models under stochastic demand [J]. Journal of Advanced Transportation, 2008, 42(3): 239–263.
LIU Tian-liang, HUANG Hai-jun, TIAN Li-jun. Microscopic simulation of multi-lane traffic under dynamic tolling and information feedback [J]. Journal of Central South University of Technology, 2009, 16(5): 865–870.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: Project(2012CB725403-5) supported by National Basic Research Program of China; Project(71131001-2) supported by National Natural Science Foundation of China; Projects(2012JBZ005) supported by Fundamental Research Funds for the Central Universities, China; Project(201170) supported by the Foundation for National Excellent Doctoral Dissertation of China
Rights and permissions
About this article
Cite this article
Zhang, Wy., Guan, W., Song, Ly. et al. Alpha-reliable combined mean traffic equilibrium model with stochastic travel times. J. Cent. South Univ. 20, 3770–3778 (2013). https://doi.org/10.1007/s11771-013-1906-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11771-013-1906-z