scholarly journals DETECTING NUCLEAR MATERIALS IN URBAN ENVIRONMENTS USING MOBILE SENSOR NETWORKS

2021 ◽  
Vol 247 ◽  
pp. 16003
Author(s):  
R. Flanagan ◽  
LJ Brandt ◽  
MR Deinert ◽  
AG Osborne

Radiation detectors installed at major ports of entry are a key component of the overall strategy to protect countries from nuclear terrorism. While the goal of deploying these systems is to intercept special nuclear material as it enters the country, no detector system is fool proof. Mobile, distributed sensors have been proposed to detect nuclear materials in transit should portal monitors fail to prevent their entry in the first place. In large metropolitan areas a mobile distributed sensor network could be deployed using vehicle platforms such as taxis, Ubers and Lyfts which are already connected to communications infrastructure. However, the potential geographic coverage that could be achieved using a network of sensors mounted on commercial passenger vehicles has not been established. Here we evaluate how a mobile sensor network could perform in New York City using a combination of radiation transport and Geographic Information Systems. The Geographic Information System QGIS is used in conjunction with OpenStreetMap data to isolate roads and construct a grid over the streets. Vehicle paths are built using pickup and drop off data from Uber, and data from the New York State Department of Transportation.

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2196
Author(s):  
Robert Flanagan ◽  
Logan Brandt ◽  
Andrew Osborne ◽  
Mark Deinert

Radiation detectors installed at major ports of entry are a key component of the overall strategy to protect countries from nuclear terrorism. While the goal of deploying these systems is to intercept special nuclear material as it enters the country, no detector system is foolproof. Mobile, distributed sensors have been proposed to detect nuclear materials in transit should portal monitors fail to prevent their entry in the first place. In large metropolitan areas, a mobile distributed sensor network could be deployed using vehicle platforms such as taxis, Ubers, and Lyfts, which are already connected to communications infrastructure. However, performance and coverage that could be achieved using a network of sensors mounted on commercial passenger vehicles has not been established. Here, we evaluate how a mobile sensor network could perform in New York City using a combination of radiation transport and geographic information systems. The geographic information system is used in conjunction with OpenStreetMap data to isolate roads and construct a grid over the streets. Vehicle paths are built using pickup and drop off data from Uber, and from the New York State Department of Transportation. The results show that the time to first detection increases with source velocity, decreases with the number of mobile detectors, and reaches a plateau that depends on the strength of the source.


1997 ◽  
Vol 1570 (1) ◽  
pp. 172-180
Author(s):  
Nathan S. Erlbaum ◽  
Thomas M. Vaughan

A process is described that was developed by the New York State Department of Transportation to identify potential areas around the state for location of new weigh-in-motion sites. The procedure uses geographic information system (GIS) technology to synthesize census areawide travel and business data with linear highway system traffic and vehicle classification data from the Department’s computer inventories. The conclusion is that GIS is a powerful tool for synthesizing and displaying diverse data sets for use in solving engineering problems.


Author(s):  
Gary McVoy ◽  
Mark Sengenberger ◽  
Elizabeth Novak

Public-works agencies have an obligation to enhance the environment as opportunities arise. The New York State Department of Transportation (NYSDOT) has developed an environmental initiative to make an affirmative contribution to the environment, using the department’s organizational strengths. The environmental initiative is a paradigm shift applicable to all departments of transportation (DOTs). Conventional reactive regulatory compliance can reduce unnecessary environmental damage and sometimes gain grudging regulatory agency cooperation; however, it is not a positive, satisfying way of doing the people’s work. Through proactive steps, NYSDOT has become an important part of the state’s environmental solution (often at little or no additional cost) and has changed its working relationships with environmental agencies and groups. As these agencies and groups have become partners, instead of adversaries, permit-approval times have improved, mitigation costs have declined, morale has improved, and cost-effective environmental benefits are being realized. Procedures are outlined to apply the engineering capabilities of a DOT to the environmental-stewardship responsibilities shared by all governmental organizations.


2020 ◽  
Vol 10 (03) ◽  
pp. e281-e287
Author(s):  
Sangeeta Kumaraswami ◽  
Tana S. Pradhan ◽  
Sorana Vrabie-Wolf ◽  
Sadaf Lodhi ◽  
Geetha P. Rajendran ◽  
...  

Abstract Objective To describe our experiences in preparing our obstetric unit in Westchester County, New York, during the COVID-19 (coronavirus disease of 2019) pandemic. We focus on describing our timeline, continuously evolving actions, observations, and challenges. Methods With guidance from the New York State Department of Health (NYSDOH), our institutional epidemiologist, and key multidisciplinary faculty members, we evaluated emerging national data as well as expert opinions to identify issues and challenges to create action plans. Results We created and modified policies for our patients presenting for obstetrical care on the labor and delivery unit to accommodate their unique needs during this pandemic. Conclusion The COVID-19 pandemic has posed many unique challenges. Balancing communication, risks of infection to providers, patient autonomy and rights, and resources for testing and personal protective equipment were among the valuable lessons learnt. We have shared our experiences and described our observations and challenges in Westchester County, New York.


1982 ◽  
Vol 12 (2) ◽  
pp. 113-123 ◽  
Author(s):  
Michael Lamanna

This article emerges from a larger study of preventive approaches for Alcohol Related Birth Defects (ARBD) prepared for the New York State Department of Education. The author contends that in addition to clearly identifiable Fetal Alcohol Syndrome children, there is a continuum of impairment to the offspring of drinking mothers that is dose related and produces serious behavioral/learning deficits. The continuum includes young people of normal intelligence who perform below expected levels and find school adjustment difficult. School and community agencies need to conduct studies to determine the nature and extent of impairment and the kind of interventive and preventive action that should be instituted. To that end, this article gives information on the background and nature of ARBD and some suggestions to guide development of programs.


Author(s):  
John Bullough ◽  
Mark S. Rea

Backscattered light reflected from falling snow, rain, and fog impairs visibility and can hinder performance of snowplow operators. New York State Department of Transportation snowplow operators cite backscattered glare as an important problem, and many drivers use their own “solutions” to counteract it. A literature review yielded two important conclusions: backscattered light from a lamp in fog and falling snow is reduced, and visibility is improved ( a) as the lamp is moved away from the operator’s line of sight and ( b) with a narrow-beam lamp. Field tests of lighting configurations during inclement weather were conducted to determine the effects of beam type and displacement from the operator’s line of sight on visibility, glare, and satisfaction. On the basis of these data and the literature, a simple mathematical model was developed that predicts the forward-visibility ratings of snowplow operators. This model can be used to guide specifiers in selecting light sources and mounting locations for snowplow operations.


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