Results 1 to 10 of about 745,772 (242)

Traffic speed management [PDF]

open access: yesTehnika, 2014
Speed, and vehicles themselves, affect the level of service and road safety, quality of life, noise from traffic, the environment, health, air pollution, emission of carbon dioxide, global warming, the economy and consumption of non-renewable energy such
Subotić Jovana Lj.   +3 more
doaj   +3 more sources

Road conditions and traffic speeds

open access: diamondIOP Conference Series: Materials Science and Engineering, 2021
Abstract The paper shows that from the point of view of energy consumption, the most optimal is the mode of movement with a constant speed among all possible speed modes of move-ment due to the fact that the average value of the mechanical energy of a moving car has a minimum value when driving at a constant speed.
Petr A. Lushnikov   +3 more
openalex   +2 more sources

Reply to "What Faster-than-traffic Characteristic Speeds Mean for Vehicular Traffic Flow"

open access: green, 2009
This contribution replies to H. M. Zhang's paper "What Faster-than-traffic Characteristic Speeds Mean for Vehicular Traffic Flow", which comments on the manuscript "On the Controversy around Daganzo's Requiem for and Aw-Rascle's Resurrection of Second ...
Dirk Helbing
openalex   +4 more sources

Traffic Speed Prediction: An Attention-Based Method. [PDF]

open access: yesSensors (Basel), 2019
Short-term traffic speed prediction has become one of the most important parts of intelligent transportation systems (ITSs). In recent years, deep learning methods have demonstrated their superiority both in accuracy and efficiency. However, most of them only consider the temporal information, overlooking the spatial or some environmental factors ...
Liu D, Tang L, Shen G, Han X.
europepmc   +5 more sources

Speed Harmonization for Partially Connected and Automated Traffic

open access: green2021 IEEE Intelligent Vehicles Symposium (IV), 2021
This paper proposed a speed harmonization controller for partially connected and automated traffic. It regulated the flow rate of the entire traffic by adjusting only the target cruising speed of Connected and Automated Vehicles (CAVs). The major breakthrough of the proposed controller is that it is able to manage mesoscopic level traffic by ...
Lianhua An   +4 more
openalex   +2 more sources

Distribution of traffic speed in different traffic conditions: an empirical study in Budapest

open access: yesTransport, 2020
Fundamental diagram, a graphical representation of the relationship among traffic flow, speed, and density, has been the foundation of traffic flow theory and transportation engineering for many years.
Mohammad Maghrour Zefreh   +1 more
doaj   +3 more sources

An Attention-Based Car-Following Model Based on Fused Data

open access: yesIEEE Access, 2023
Data-driven car-following models provide an alternative approach to explore the underlying and complex driving behavior, while they suffer from poor generalization ability that makes it difficult to be applied to traffic simulations.
Li-Zheng Wang   +5 more
doaj   +1 more source

An Optimization Method of High-Speed Railway Rescheduling to Meet Unexpected Large Passenger Flow

open access: yesJournal of Advanced Transportation, 2022
In the rapidly changing multimodal transportation market, not only the obligation in providing train services but also the responsibility in helping other transportation modes to meet emergencies are instrumental for maximizing the generalized benefit of
Junduo Zhao   +3 more
doaj   +1 more source

The Influence of Wind Shielding and Train-Induced Wind on the Vibration of a Train-Bridge System

open access: yesAdvances in Civil Engineering, 2022
The aerodynamic forces of the system were obtained based on a 3D aerodynamic model, and a dynamic analysis model of the train-bridge coupling system was established to compare the vibration responses of the train and bridge with and without a wind ...
Yujing Wang   +3 more
doaj   +1 more source

Investigation on the fluid-solid coupling effect in high-speed train’s windshield structure

open access: yesAlexandria Engineering Journal, 2023
The high-speed train’s windshield structure is vital to the boundary layer development and drag reduction design. Up to date, windshield structures are assumed as rigid body in most train aerodynamic numerical simulations.
Jiangchuan Ma   +7 more
doaj   +1 more source

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