Zobrazeno 1 - 10
of 204
pro vyhledávání: '"HongSheng Qi"'
Publikováno v:
IET Intelligent Transport Systems, Vol 18, Iss 3, Pp 495-516 (2024)
Abstract Deadlock is an extreme traffic flow operational state during rush hours. Many literatures have studied autonomous vehicle coordination under the umbrella of deadlock‐free conditions. These researches either assume the trajectories are fixe
Externí odkaz:
https://doaj.org/article/bb30c504179c43e9a9811db67585f1dc
Autor:
Hongsheng Qi
Publikováno v:
IEEE Open Journal of Intelligent Transportation Systems, Vol 5, Pp 265-280 (2024)
The safety of autonomous vehicles (AVs) is a critical consideration for their widespread adoption. Responsibility sensitive safety (RSS) is proposed to serve as a model checking tool for AV safety. However, RSS alone cannot guarantee safety when they
Externí odkaz:
https://doaj.org/article/0239256a04eb48c3a77f70518ead9ebe
Publikováno v:
IET Intelligent Transport Systems, Vol 16, Iss 10, Pp 1342-1363 (2022)
Abstract Although traffic deadlock at an intersection is a common phenomenon during rush hours, the deadlock formation metrics such as formation probability and duration have not been derived yet. As Petri Net (PN)‐based approach can formulate the
Externí odkaz:
https://doaj.org/article/3ee42f77b40a4fc59ec370cbc54c3246
Publikováno v:
IEEE Access, Vol 10, Pp 112629-112638 (2022)
Most congestion occurs at intersections. Increasing the intersection capacity is crucial to alleviate the congestion. Saturation flow rate (SFR) is the basis for capacity calculation. SFR depends on many factors, and the guidelines sketched in the hi
Externí odkaz:
https://doaj.org/article/cd6bdab27cc94c2283dcad8719574026
Publikováno v:
IEEE Access, Vol 8, Pp 26067-26084 (2020)
This manuscript investigated coordinated intersection signal design problem for mixed traffic flow of Human-Driven Vehicles (HDVs) and Connected and Autonomous Vehicles (CAVs). Two main macroscopic impact of the mixed flow on signal setting are consi
Externí odkaz:
https://doaj.org/article/701713ddfa37420ea16ee3af65fdacc5
Publikováno v:
IEEE Access, Vol 8, Pp 32850-32861 (2020)
Travel time is inherently uncertain in urban networks due to volatile traffic flows, signal controls, bus stops and disturbances from pedestrians. An effective way to characterize such uncertainty is by estimating Travel Time Distribution (TTD). Howe
Externí odkaz:
https://doaj.org/article/768b9303d45547d79be78ccba16b35fa
Publikováno v:
iScience, Vol 24, Iss 8, Pp 102907- (2021)
Summary: The metasurfaces through the reasonable design and arrangement of subwavelength nanostructures to control the spatial light field are expected to replace the traditional lens elements. However, the low light use efficiency (LUE) and difficul
Externí odkaz:
https://doaj.org/article/59a952945cac45bfa9d351860335ba7f
Autor:
Hongsheng Qi, Litan Yan
Publikováno v:
Journal of Inequalities and Applications, Vol 2018, Iss 1, Pp 1-18 (2018)
Abstract Let SH={StH,t≥0} $S^{H}=\{S^{H}_{t},t\geq0\}$ be a sub-fractional Brownian motion with Hurst index 00 $t > 0$, where log+x=max{1,logx} $\log^{+}x=\max{\{1, \log x\}}$ for x≥0 $x\geq0$. As an application, we introduce the ΦH $\Phi_{H}$-v
Externí odkaz:
https://doaj.org/article/c2c91a9d39cf41588a147a4504ed8d6a
Autor:
Hongsheng Qi
Publikováno v:
IEEE Access, Vol 6, Pp 6755-6764 (2018)
This research proposes a graphical solution to arterial road dynamics simulation. An arterial road consists of channelized and upstream sections. Traffic flow is mixed in the upstream section (U-section) and operates without lateral interaction in th
Externí odkaz:
https://doaj.org/article/def3a4bd2295409294a307c833c4aa5f
Spatial-Temporal Congestion Identification Based on Time Series Similarity Considering Missing Data.
Publikováno v:
PLoS ONE, Vol 11, Iss 9, p e0162043 (2016)
Traffic congestion varies spatially and temporally. The observation of the formation, propagation and dispersion of network traffic congestion can lead to insights about the network performance, the bottleneck dynamics etc. While many researchers use
Externí odkaz:
https://doaj.org/article/267a17406df446c4a088dc165e1aba82