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A Hybrid Modelling ...
A Hybrid Modelling Approach for Traffic State Estimation at Signalized Intersections
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- Sederlin, Michael (författare)
- KTH,Transportplanering
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- Ma, Xiaoliang, Docent (författare)
- KTH,Transportplanering
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- Jin, Junchen (författare)
- KTH,Transportplanering
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2021
- 2021
- Engelska.
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Ingår i: 2021 IEEE Intelligent Transportation Systems Conference (ITSC). - : Institute of Electrical and Electronics Engineers (IEEE). ; , s. 3604-3609
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Traffic state estimation is an important part of the traffic control process and aims to creates an accurate understanding of the current situation in traffic system. Bayesian Filtering is a statistical modelling framework that is useful in representing traffic state update as well as the relation between traffic state and detection data. This study develops a hybrid approach and uses non-parametric Gaussian Process (GP) to model the state-space transition of traffic system. Through representing the system models as either fully data-driven GP or as a hybrid model using a parametric mean function fusing the conventional principle of traffic flow with the data-driven approach, the requirement of an analytical model can be removed or relaxed. The computational results show that the proposed approach for lane based TSE can capture both short-term fluctuations and larger demand changes. In particular, the Bayesian nature of the GP models offer relative ease in quantifying the model uncertainties in combination with a conventional traffic flow model.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Transportteknik och logistik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Transport Systems and Logistics (hsv//eng)
Nyckelord
- State estimation
- Street traffic control
- Traffic signals
- Bayesian filtering
- Control process
- Current situation
- Gaussian Processes
- Hybrid model
- Modeling approach
- Signalized intersection
- Traffic state
- Traffic systems
- Traffic-state estimations
- Uncertainty analysis
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)