Abstract
This study intends to investigate operational performance of the group-based signal control approach (GA) in Japan. A cycle-based stochastic approach incorporating the HCM 2000 delay model and Monte Carlo simulation was proposed. To facilitate its application, extensive field data was collected at 11 typical intersections in Germany and Japan to understand the variability of input variables and their correlations. A series of case studies were eventually conducted to investigate the applicability of GA under various conditions, i.e., degree of saturation (DS), split ratio (SR), and the coefficient of variation (COV) of traffic demand. Conclusions supported that the operational performance of GA deteriorated with increasing SR and decreasing DS. GA is apparently advantageous for SRs less than 0.8, COVs less than 0.2, and optimum cycle lengths greater than 90 s.







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Acknowledgments
The authors would like to convey their sincere thanks to Prof. Manfred Boltze of Darmstadt University of Technology and Dr. Axel Wolfermann of Nagoya University, for their great support in data collection and valuable comments on this research.
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Tang, K., Nakamura, H. Investigating Operational Benefits of Group-based Signal Control in Japan Through a Stochastic Approach. Int. J. ITS Res. 9, 71–81 (2011). https://doi.org/10.1007/s13177-011-0028-y
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DOI: https://doi.org/10.1007/s13177-011-0028-y