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Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/FC58A9CD-BE0F-466F-ADF3-CA118463496F | - |
| Identifier | https://doi.org/10.1109/TITS.2020.2989365 | - |
| Identifier | https://ieeexplore.ieee.org/document/9119824 | - |
| Language | en | - |
| Extent | 19 pages | en |
| Title | A novel approach to estimating missing pairs of on/off ramp flows | en |
| Creator | Kan Yuheng | en |
| Creator | Wang Yibing | en |
| Creator | Wang Dianhai | en |
| Creator | Sun Jian | en |
| Creator | Shao Chunfu | en |
| Creator | Papageorgiou Markos | en |
| Creator | Παπαγεωργιου Μαρκος | el |
| Publisher | Institute of Electrical and Electronics Engineers | en |
| Content Summary | A freeway stretch with even one pair of unmeasured on/off-ramps is not fully observable in traffic states. Flow observability is essential for freeway traffic modeling, surveillance, and control. It is a longstanding and tricky issue to estimate flows for unmeasured ramp pairs. This problem seems to be hardly tractable in conventional approaches, and this paper intends to handle it based on machine learning. The work was partially inspired by transfer learning. Consider that no measurements are available for a target ramp pair, and the knowledge about ramp flow estimation may be drawn from other (measured) ramp pairs, provided that measured and unmeasured ramp pairs would share similarities in some key traffic flow patterns. Two simple machine learning algorithms, random forest (RF) and gradient boosting machine (GBM), were employed to this end. RF and GBM were driven by real measurement data to establish models that relate ramp flows to adjacent mainstream traffic conditions. The models were then applied for our task. The estimation performance was evaluated using real measurement data from the Shanghai Urban Expressway and the Intercity Highway in California, with satisfactory results obtained. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2023-01-31 | - |
| Date of Publication | 2021 | - |
| Subject | Freeway traffic | en |
| Subject | Missing ramp flow estimation | en |
| Subject | Machine learning | en |
| Subject | Random forest (RF) | en |
| Subject | Gradient boosting machine (GBM) | en |
| Bibliographic Citation | Y. Kan, Y. Wang, D. Wang, J. Sun, C. Shao and M. Papageorgiou, "A novel approach to estimating missing pairs of on/off ramp flows," IEEE Trans. Intell. Transp. Syst., vol. 22, no. 2, pp. 1287-1305, Feb. 2021, doi: 10.1109/TITS.2020.2989365. | en |
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