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Grand Challenges in Transportation and Transit Systems

TLDR
The fundamental principle "safety first" is still the key priority in most research today as mentioned in this paper, however, thanks to extensive interface with various customers, research and innovation in practices have shifted from optimizing functional purposes and targets through each stage of life cycle toward modernization, reliability, resilience, and better quality of life.
Abstract
Transportation and transit systems draw upon broad spectra of research fields due to the diversity and interconnectivity of transport modes, including road, rail, aviation, pipeline, maritime, or even aerospace. These systems have evolved over centuries to be considerably more efficient and environment-friendly for a wide range of customers. The fundamental principle "safety first" is still the key priority in most research today. However, thanks to extensive interface with various customers; research and innovation in practices have shifted from optimizing functional purposes and targets through each stage of life cycle toward modernization, reliability, resilience, and better quality of life. These initiatives additionally coincide with the grand challenges for engineering proposed by the National Academy of Engineering and the United Nations' Millennium Development Goals (National Academy of Engineering, 2015). Language: en

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A Digital-Twin Evaluation of Net Zero Energy Building for Existing Buildings

TL;DR: In this paper, both technical and financial viability of Net Zero Energy Buildings (NZEB) for "existing" buildings is highlighted. And a future model for NZEB applications in existing buildings, which applies renewable technologies to the building by aiming to identify ultimate benefit of the building especially in terms of effectiveness and efficiency in energy consumption.
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Digital twin for sustainability evaluation of railway station buildings

TL;DR: In this paper, a specific BIM application within the context of railway station buildings using a Revit-based simulation of construction work for King's Cross station in London is discussed.
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Logistics and distribution challenges to managing operations for corporate sustainability: Study on leading Indian diary organizations

TL;DR: In this article, the authors analyze the interaction between distribution related challenges with a focus operational excellence and higher corporate green growth and sustainability viewpoints in food supply chains by considering the business example of four Indian dairy product based organizations using graph theory and matrix approach.
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Enhancement of Dynamic Damping in Eco-Friendly Railway Concrete Sleepers Using Waste-Tyre Crumb Rubber

TL;DR: It is recommended to consider the use of rubberised concrete (up to 10 wt. % crumb rubber) in designing railway sleepers as this will improve the service life of railway track systems and reduce wastes to the environment.
References
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Journal ArticleDOI

A review of loading conditions for railway track structures due to train and track vertical interaction

TL;DR: In this paper, a review of the typical characteristics of the loading conditions for railway track structures, in particular, impact loads due to the wheel/rail interaction, is presented, with particular emphasis on the typical shapes of the impact load waveforms generally found on railway tracks.

Green Logistics : the Carbon Agenda

TL;DR: In this article, a framework for the deca rbonisation of their logistical activities based on five key freight transport parameters: freight transport intensity, modal spli t, vehicle utilization, energy efficiency and the c arbon intensity of the energy used in logistics is presented.
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Strategic framework to achieve carbon-efficient construction and maintenance of railway infrastructure systems

TL;DR: Sakdirat Kaewunruen*, Joseph M. Sussman and Herbert H. Einstein this article proposed a high speed rail research group at the University of Birmingham, UK.
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Field investigation and parametric study of greenhouse gas emissions from railway plain-line renewals

TL;DR: In this article, a field-based data collection was carried out on plain-line ballasted track renewals and the results revealed that the emissions from the materials contribute more than nine times the CO2-e emissions than the machines used in the renewal projects.
Journal ArticleDOI

Grand challenges in structural materials

TL;DR: A summary of the key areas of research and challenges facing structural materials researchers with particular focus on areas with major advances to be made can be found in this article, where the authors highlight the need for a thorough scientific approach to materials design that also exploits recent advances in high-throughput, combinatorial and computational methodologies in manufacturing, analytical and data processing facilities.
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Trending Questions (2)
What are the main challenges faced by land transportation systems in terms of efficiency and safety?

Land transportation systems face challenges in enhancing efficiency and safety through modernization, reliability, resilience, and improved quality of life, aligning with the priority of "safety first" in research.

What are the current challenges faced by comprehensive transportation systems in terms of performance improvement?

The paper does not specifically mention the current challenges faced by comprehensive transportation systems in terms of performance improvement.