Phys.org的动态

A breakthrough in traffic monitoring technology has been achieved by a research team affiliated with UNIST.

A breakthrough in traffic monitoring technology has been achieved by a research team affiliated with UNIST.

The new edition of Traffic Technology International (TTi) is here! Click below for our article on the Structural Bridge WIM Diagnostics Systems! #bridgeWIM #SHM #bridges

Many thanks to GPRS for its recent feature on us in the The Built World! Our Director of Business Development Eric Sullivan got to share about our technologies and how they are impacting various industry stakeholders in underground infrastructure. ??Check out the full article right here?? https://lnkd.in/gi2yV8v9

Four step modelling is missing but overall best summary of Transportation engineering, I have ever seen.

Excited to share our latest publication in IEEE Access on Real-Time Railway Traffic Management! Our paper addresses the challenges of adjusting train timetables during perturbations to minimize delays and ensure seamless passenger connections. Abstract: This paper addresses the real-time Railway Traffic Management Problem (rtRTMP), which involves adjusting train timetables during perturbations. Perturbations in railway networks often lead to significant delays, necessitating strategies to minimize their propagation. An important objective of traffic management is to facilitate passenger transfers through connecting trains, which may become difficult when traffic is disturbed. Pursuing this objective, the paper focuses on mitigating train delays by reducing connection times during transfers without compromising connections. To achieve this, we extend an existing Mixed-Integer Linear Programming (MILP) formulation for the rtRTMP by introducing two alternative enhancements. Moreover, we pursue the same delay mitigation by extending an Ant Colony Optimization algorithm for the Train Routing Selection Problem (TRSP): this problem reduces the number of alternative routes to be considered for trains, making rtRTMP instances tractable. We assess the efficiency of the proposed enhancements in reducing the total train delay while preserving passenger connections in multiple instances representing traffic in the Lille-Flandres station control area, located in the north of France. The results demonstrate that the integration of these enhancements, in both the TRSP and the rtRTMP, results in a significant reduction in delay propagation. Read the Full Paper: https://lnkd.in/dR5s9rES I want to extend my heartfelt thanks to my thesis supervisors Paola Pellegrini and Joaquin Rodriguez from Gustave Eiffel University for their invaluable guidance and support throughout my research journey. I also express deep gratitude to Neeraj Chaudhary, my supervisor from industry collaboration at Rail Concept, whose insights were instrumental in shaping this work. Special thanks goes to Bianca Pascariu, co-author of this paper and colleague in the ESTAS lab ("Evaluation des Systèmes de Transport Automatisés et de leur Sécurité"), for her contributions and collaboration. #RailwayTrafficManagement #AntColonyOptimization #MILPModeling #RECIFE #RailwayOperations #PassengerTransfers

Another win for Reveal today as our online data processing service, Underdots is featured in Infrastructure Magazine ?? Underdots transforms multi-channel GPR data into a 3D point-cloud visualisation, providing designers with rapid insights into the intensity and depth of radar reflections, helping to identify underground utilities. This empowers decision-making in the early phases of a project, reducing the likelihood of expensive redesigns due to unforeseen utilities once construction has already started. Want to learn more? Check out underdots.com or call Reveal. #Underdots #InfrastructureNZ #GPR #UtilityMapping #UtilityLocating

As rail networks expand and become more complex, the demand for advanced rail signaling systems continues to grow. My colleague Shruti highlighted the growing importance of developing “systems of systems” in rail signaling to ensure safety, efficiency, and seamless integration across networks. The increasing need for these integrated solutions comes from the challenges of managing higher traffic volumes, improving safety standards, and enhancing operational efficiency. As the rail industry continues to adapt, investing in advanced signaling systems can achieve real-time monitoring, predictive maintenance, and better coordination across the network. #RailSignaling #RailInfrastructure #SystemsOfSystems #RailSafety #QuestGlobal

While RTK technology offers centimeter accuracy, it's not always feasible on the railway due to limited internet coverage and the absence of nearby base stations. But did you know? Our GNSS solutions provide accuracies down to 0.9 meters standalone without RTK, significantly outperforming standard receivers that typically deliver 5-15 meters accuracy. This leap in precision ensures efficient and safe railway operations, even in remote areas! ?? Explore how our GNSS solutions are revolutionizing the railway industry with high precision:https://lnkd.in/dF2vMqZE

Have a look at our latest research paper in the Journal "Sensors" - a new method for the fibre-optic based monitoring of buried pipelines under dynamic load conditions. #LowCarbonPipes #CarbonEmbodiment #PipelineInnovation