Traffic wave model based on vehicle‐infrastructure cooperative and vehicle communication data

2020 ◽  
Vol 36 (4) ◽  
pp. 1755-1772
Author(s):  
Huazhi Yuan ◽  
Hongjia Zhang ◽  
Xuelian Liu ◽  
Xinlong Jiao
Keyword(s):  
Wave Model ◽  
Vehicle Communication ◽  
Model Based ◽  
Traffic Wave

scholarly journals The Departure Characteristics of Traffic Flow at the Signalized Intersection

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Zhaowei Qu ◽  
Yan Xing ◽  
Hongyu Hu ◽  
Yuzhou Duan ◽  
Xianmin Song ◽  
...  
Keyword(s):  
Traffic Flow ◽  
Wave Model ◽  
Wave Theory ◽  
Signalized Intersection ◽  
Departure Process ◽  
Dispersion Process ◽  
Spatiotemporal Model ◽  
Quantitative Calculation ◽  
Traffic Wave ◽  
Motion Characteristics

The motion characteristics of the leading vehicle and the following vehicles of the traffic flow at the typical urban intersections are qualitatively analyzed through the kinematical equation and the traffic wave theory. Then, the motion characteristic of the whole traffic flow during the dispersion process is also studied. Based on the spatiotemporal model of kinematics in the departure process and traffic wave model in the dispersion process proposed, the change of the leading vehicle of the departure process and the time of the following vehicles reaching to the stable speed as well as the relationship between the green time and the departure vehicle number at the intersection are acquired. Furthermore, according to the qualitative analysis and the quantitative calculation of the departure traffic flow at the signalized intersection, the dispersion characteristic of traffic flow at the signalized intersection was studied and analyzed, which provides reliable theoretical basis for traffic signal setting at the intersection.

scholarly journals Analytical Fast Magnetosonic Wave Model Based on Observations of Van Allen Probe

2020 ◽  
Vol 125 (10) ◽  
Author(s):  
Fei Yao ◽  
Zhigang Yuan ◽  
Xiongdong Yu ◽  
Dedong Wang ◽  
Zhihai Ouyang
Keyword(s):  
Wave Model ◽  
Magnetosonic Wave ◽  
Model Based

scholarly journals Development of a New Ship Adaptive Weather Routing Model Based on Seakeeping Analysis and Optimization

2020 ◽  
Vol 8 (4) ◽  
pp. 270 ◽  
Author(s):  
Silvia Pennino ◽  
Salvatore Gaglione ◽  
Anna Innac ◽  
Vincenzo Piscopo ◽  
Antonio Scamardella
Keyword(s):  
Weather Forecast ◽  
Wave Model ◽  
Sea State ◽  
Model Based ◽  
Weather Routing ◽  
Route Length ◽  
Seakeeping Analysis ◽  
Northern Atlantic ◽  
Optimum Route ◽  
Northern Atlantic Ocean

This paper provides a new adaptive weather routing model, based on the Dijkstra shortest path algorithm, aiming to select the optimal route that maximizes the ship performances in a seaway. The model is based on a set of ship motion-limiting criteria and on the weather forecast maps, providing the sea state conditions the ship is expected to encounter along the scheduled route. The new adaptive weather routing model is applied to optimize the scheduled route in the Northern Atlantic Ocean of the S175 containership, assumed as a reference vessel, based on the weather forecast data provided by the Global WAve Model (GWAM). In the analysis, both wave and combined wind/swell wave conditions are embodied to investigate the incidence on the optimum route assessment. Furthermore, the effect of the vessel speed on the optimum route detection is also investigated. Current results clearly show that it is possible to achieve appreciable improvements, up to 50% of the ship seakeeping performances, without excessively increasing the route length and the voyage duration.

Modification of Traffic Wave Theory and the Development of a New Stop-Wave Model

2012 ◽  
Vol 253-255 ◽  
pp. 1615-1618
Author(s):  
Yu Han Jia ◽  
Jian Ping Wu ◽  
Yi Man Du
Keyword(s):  
Wave Phenomenon ◽  
Wave Model ◽  
Wave Theory ◽  
Signalized Intersections ◽  
Microscopic Level ◽  
Peak Period ◽  
Traffic Flow Theory ◽  
Traffic State ◽  
Traffic Wave ◽  
Real Traffic

This paper studies the traffic wave phenomenon on the basis of traffic flow theory and finds that the classical theory disagreeing with the real traffic state. The existing theory is modified and a new traffic wave model is proposed based on the improved theory. The aim of the model is to better describe the stop-wave phenomenon in signalized intersections at a microscopic level. Then the model is calibrated and validated by data obtained from an intersection during morning-peak period. Results show this new model can represent the characteristics of traffic wave with a high accuracy and can demonstrate the improved traffic wave theory.

Traveling wave model-based analysis of tapered broad-area lasers

2020 ◽  
Author(s):  
Jan-Philipp Koester ◽  
Mindaugas Radziunas ◽  
Anissa Zeghuzi ◽  
Hans Wenzel ◽  
Andrea Knigge
Keyword(s):  
Traveling Wave ◽  
Wave Model ◽  
Broad Area ◽  
Model Based ◽  
Broad Area Lasers ◽  
Model Based Analysis
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