Designing and Operating Safe and Secure Transit Systems: Assessing Current Practices in the United States and Abroad, MTI Report 04-05 [PDF]
, 2005 Public transit systems around the world have for decades served as a principal venue for terrorist acts. Today, transit security is widely viewed as an important public policy issue and is a high priority at most large transit systems and at smaller ...
Cavanagh, Ellen +7 more
core +1 more source
Analysis of flow rates in cracked reinforced concrete
Structural Concrete, EarlyView.Abstract According to Eurocode 2, part 3, autogenous self‐healing of separation cracks with a width ≤0.20 mm can be considered under certain hydraulic conditions. However, practical experience shows that healing does not always reliably occur even when this crack width is maintained.
Daniel Lahmann +2 more
wiley +1 more source
Changing the Odds: The Race for Results in Atlanta [PDF]
, 2015 Race has undeniably shaped the city's landscape, giving rise to two very different Atlantas that underscore the fact that the place where children grow up affects their opportunities in life.
core
The Impact of Environmental Pollution and Climate Change on Allergic Rhinitis and Lung Diseases
World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.ABSTRACT Environmental pollution and climate change seriously affect human health, leading to the onset and exacerbation of chronic respiratory diseases, such as allergic rhinitis and lung diseases. Over the past several decades, increasing air pollution and environmental exposure owing to global urbanization, industrialization, and rapid economic ...
Xin‐Yan Liu +4 more
wiley +1 more source
Research on Speed Limit Protection System of Urban Rail Transit Engineering Equipment
机车电传动, 2020 Taking the project of metro network rail detection vehicle as an example, the speed limit protection mode of metro was studied. The principle, function, hardware composition and system protection level of adding speed limit protection system on the basis
Jianing DAI, Heliang HUANG, Chao YE
doaj
, 2003 Choices on public transit options are choices about a city's future. Will there be congestion? Will there be high levels of air and noise pollution? Will transport be affordable? Will services be available to all?
Fjellstrom, Karl, Wright, Lloyd
core
Wildlife Biology, EarlyView.As human‐modified landscape and climate changes proliferate, maintaining biodiversity and understanding the function and quality of available habitat is imperative. As anurans (frogs/toads) such as Pseudacris crucifer, can be an indicator species of habitat quality and ecosystem productivity, studying the anuran community in a mixed‐land use region ...
Brian C. Kron, Karen V. Root
wiley +1 more source
Mixed Fluids of Water and Carbon Dioxide
Geophysical Monograph Series, Page 237-243., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Evan Abramson
wiley +1 more source
Analysis of Train Bus Circuit Topology for Vehicles with Third Rail Power Supply
机车电传动, 2013 Great sense to set a train bus circuit for metro vehicles was expounded, and bus circuit design methods of demostic three-rail metro vehicle projects was proposed. Through analysis of bus circuits, a design scheme of the third rail voltage was presented.
LIN Hao, CHEN Yong-yi, CAO Jun
doaj
Study on Fatigue Life Reliability of Vehicle Bogie Arm Positioning Node
Chengshi guidao jiaotong yanjiuObjective Based on the virtual simulation fatigue test technology, fatigue life analysis and reliability evaluation of the bogie arm positioning node of a certain type of vehicle are carried out to improve the vehicle stability and guarantee the train ...
GU Zhenglong +5 more
doaj +1 more source