Results 41 to 50 of about 1,336 (189)

Reducing Bus Bunching with Asynchronous Multi-Agent Reinforcement Learning [PDF]

open access: yesProceedings of the Thirtieth International Joint Conference on Artificial Intelligence, 2021
The bus system is a critical component of sustainable urban transportation. However, due to the significant uncertainties in passenger demand and traffic conditions, bus operation is unstable in nature and bus bunching has become a common phenomenon that undermines the reliability and efficiency of bus services.
Jiawei Wang 0005, Lijun Sun 0001
openaire   +2 more sources

A Prediction Model for Bus Arrival Time at Bus Stop Considering Signal Control and Surrounding Traffic Flow

open access: yesIEEE Access, 2020
The arrival time of bus at the stop is critical data in design of bus operational strategies. Especially for real-time control strategies (i.e., signal priority system), bus arrival time is usually predicted to assess the next bus operation condition in ...
Hu Zhang   +4 more
doaj   +1 more source

Pre-Control Strategies for Downstream Bus Service Reliability With Traffic Signal

open access: yesIEEE Access, 2020
As an undesired behavior of the transport system, headway fluctuation or even bus bunching reduce reliability of bus stop service for waiting passengers.
Hu Zhang   +4 more
doaj   +1 more source

Comparison of Two Algorithms for Multiline Bus Dynamic Dispatching

open access: yesDiscrete Dynamics in Nature and Society, 2022
Dynamic bus scheduling refers to adjusting the departure time according to the latest time-varying information or adjusting bus speed in the process of operation. These control strategies can prevent bus bunching and alleviate traffic pressure. The paper
Yingxin Liu   +5 more
doaj   +1 more source

Travel Time Reliability Analysis Considering Bus Bunching: A Case Study in Xi’an, China

open access: yes, 2022
Bus bunching occurring at stops has an unstable impact on bus travel time. In order to evaluate urban bus travel time effectively, the travel time reliability (TTR) addressing bus bunching is analyzed. This paper focuses on the delayed time caused by bus
Yanan Zhang   +3 more
core   +1 more source

Improving Bus Operations through Integrated Dynamic Holding Control and Schedule Optimization

open access: yesJournal of Advanced Transportation, 2018
Bus bunching can lead to unreliable bus services if not controlled properly. Passengers will suffer from the uncertainty of travel time and the excessive waiting time. Existing dynamic holding strategies to address bus bunching have two major limitations.
Shuozhi Liu, Xia Luo, Peter J. Jin
doaj   +1 more source

The potential of real-time crowding information in reducing bus bunching under different network saturation levels

open access: yesInternational Conference on Models and Technologies for Intelligent Transportation Systems, 2021
Bus bunching is a well-known problem in public transport networks. It is characterized by a self-amplifying relationship between uneven distribution of rising passenger loads and deteriorating service regularity.
A. Drabicki, O. Cats, R. Kucharski
semanticscholar   +1 more source

Development and Evaluation of Bus Operation Control System Based on Cooperative Speed Guidance

open access: yesDiscrete Dynamics in Nature and Society, 2015
Buses often have strong bunching or large interval tendency when traveling further along the route. To restrain this further deterioration of operation service, this paper developed a bus operation control system to dynamically adjust bus speed, bus ...
Jing Teng, Weimin Jin
doaj   +1 more source

Bus Operations Scheduling Subject to Resource Constraints Using Evolutionary Optimization

open access: yesInformatics, 2018
In public transport operations, vehicles tend to bunch together due to the instability of passenger demand and traffic conditions. Fluctuation of the expected waiting times of passengers at bus stops due to bus bunching is perceived as service ...
Konstantinos Gkiotsalitis, Rahul Kumar
doaj   +1 more source

Reliability of Supply and the Impact of Weather Exposure and Protection System Failures

open access: yesApplied Sciences, 2020
Extreme weather is known to cause failure bunching in electrical transmission systems. However, protection systems can also contribute to the worsening of the system state through various failure modes—spontaneous, missing or unwanted operation.
Erlend Sandø Kiel, Gerd Hovin Kjølle
doaj   +1 more source

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