Journal
TRANSPORTMETRICA A-TRANSPORT SCIENCE
Volume 13, Issue 6, Pages 519-543Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/23249935.2017.1299814
Keywords
Continuum traffic flow model; anisotropy; wide cluster; calibration; monkey algorithm
Funding
- National Natural Science Foundation of China [71501191, 71501009]
- China Postdoctoral Science Foundation [2014M552165, 2015T80889]
- Key Project of Science and Technology Department of Hunan Province [2015ZK3004]
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This study proposes an anisotropic continuum model derived from a simplified Helly's model. Its admissibility of a wide cluster solution is then analyzed by the nonlinear weak solution theory. After that, it is calibrated by a monkey algorithm with dynamic adaptation (DAMA) under two cases, and it is concluded that (1) DAMA makes the performance index and model parameters converge to their optimal values in limited iterations; (2) this calibrated model well reproduces the traffic congestions originating from a rubberneck effect within US101 site, besides of those propagated from the downstream boundary; (3) this proposed model with relations of Del Castillo and Benitez, or Greedshields gets better calibration and validation results; (4) the performance index is more sensitive to density-related parameters than to speed-related parameters. In summary, this anisotropic model calibrated by DAMA can well reproduce real traffic waves, and DAMA is a promising algorithm for the higher-order model calibration.
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