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Exploring Factors Contributing To Injury Severity At Freeway Merging And Diverging Locations In Ohio, Worku Y. Mergia, Deogratias Eustace, Deo Chimba, Maher Butros Qumsiyeh 2016 Geotest Engineering, Houston, Texas

Exploring Factors Contributing To Injury Severity At Freeway Merging And Diverging Locations In Ohio, Worku Y. Mergia, Deogratias Eustace, Deo Chimba, Maher Butros Qumsiyeh

Maher Qumsiyeh

Identifying factors that affect crash injury severity and understanding how these factors affect injury severity is critical in planning and implementing highway safety improvement programs. Factors such as driver-related, traffic-related, environment-related and geometric design-related were considered when developing statistical models to predict the effects of these factors on the severity of injuries sustained from motor vehicle crashes at merging and diverging locations. Police-reported crash data at selected freeway merging and diverging areas in the state of Ohio were used for the development of the models. A generalized ordinal logit model also known as partial proportional odds model was applied to ...


Analyzing The Effects Of Led Traffic Signals On Urban Intersection Safety, Deogratias Eustace, Valerie E. Griffin, Peter W. Hovey 2016 University of Dayton

Analyzing The Effects Of Led Traffic Signals On Urban Intersection Safety, Deogratias Eustace, Valerie E. Griffin, Peter W. Hovey

Deogratias Eustace

In 2002, there were 1,299,000 crashes at signalized intersections in the United States. These crashes account for approximately 21 percent of total crashes and about 24 percent of all fatal and injury collisions. The social and financial impact of this number of collisions is substantial. The Federal Highway Administration (FHWA) and other agencies have recognized the detrimental effects of intersection crashes on our society and continue to fund research that will lead to a decrease in crash frequency. Numerous countermeasures have been tested for their potential to reduce crashes. Infrastructure improvements such as the construction of left-turn lanes ...


An Exploratory Survey Of Drivers’ Knowledge Of Right Of Way At Freeway On-Ramp Merging Areas, Deogratias Eustace, Stephen Owusu-Ansah, Vamsi Krishna Indupuru 2016 University of Dayton

An Exploratory Survey Of Drivers’ Knowledge Of Right Of Way At Freeway On-Ramp Merging Areas, Deogratias Eustace, Stephen Owusu-Ansah, Vamsi Krishna Indupuru

Deogratias Eustace

Motor vehicle crashes are one of the leading causes of death in the United States. The most recent data available show that in 2006 there were almost 6 million police-reported motor vehicle crashes in the United States where a total of 42,642 people were killed and an additional 2.6 million were injured. The majority of these motor vehicle crashes occurred at intersections or within the intersection influence areas. Traffic conflicts occur at intersections due to traffic streams moving in different directions interfering with each other, and as a result they become areas with high potential for traffic crashes ...


Metadata For Describing Water Models, Mohamed M. Morsy, Jonathan L. Goodall, Christina Bandaragoda, Anthony M. Castronova, Jane Greenberg 2016 University of Virginia

Metadata For Describing Water Models, Mohamed M. Morsy, Jonathan L. Goodall, Christina Bandaragoda, Anthony M. Castronova, Jane Greenberg

Anthony Castronova

Computer models are widely used in hydrology and water resources management. A large variety of models exist, each tailored to address specific challenges related to hydrologic science and water resources management. When scientists and engineers apply one of these models to address a specific question, they must devote significant effort to set up, calibrate, and evaluate that model instance built for some place and time. In many cases, there is a benefit to sharing these computer models and associated datasets with the broader scientific community. Core to model reuse in any context is metadata describing the model. A standardized metadata ...


Agro-Ecosystem Adaptation To Climate Change – How Does Crop Model Uncertainty Affect The Choice Of Optimum Adaptation Responses?, A. Holzkämper, T. Klein, R. Seppelt, J. Fuhrer 2016 Agroscope, Institute for Sustainability Sciences, Oeschger Centre for Climate Change Research, University of Bern

Agro-Ecosystem Adaptation To Climate Change – How Does Crop Model Uncertainty Affect The Choice Of Optimum Adaptation Responses?, A. Holzkämper, T. Klein, R. Seppelt, J. Fuhrer

International Congress on Environmental Modelling and Software

Amongst the crop modelling community, it is now widely acknowledged that model uncertainties can have huge implications on the results from climate impact studies. While uncertainties in climate impact assessments are increasingly being considered, studies investigating the implications of model uncertainties on recommendations for adaptation responses are still very rare. To address this gap, this study investigates how crop model uncertainty can affect the selection of suitable adaptation responses. The agroecosystem model CropSyst is applied in connection with an optimization routine to select optimum adaptation options with regard to different adaptation goals (i.e. maximum productivity, minimum erosion, minimum leaching ...


Hindcasting The Dynamics Of An Eastern Mediterranean Marine Ecosystem Under The Impacts Of Multiple And Cumulative Stressors, X. Corrales, M. Coll, E. Ofir, M. Goren, D. Edelist, J. J. Heymans, G. Gal 2016 Kinneret Limnological Laboratory

Hindcasting The Dynamics Of An Eastern Mediterranean Marine Ecosystem Under The Impacts Of Multiple And Cumulative Stressors, X. Corrales, M. Coll, E. Ofir, M. Goren, D. Edelist, J. J. Heymans, G. Gal

International Congress on Environmental Modelling and Software

An important challenge for conserving and managing marine ecosystems is to advance our understanding of how multiple human stressors, environmental factors and marine resources interact and influence each other. The ecosystems of the Israeli Mediterranean coast have undergone significant ecological changes in recent decades caused primarily by the introduction of invasive species through the Suez Canal, intense fishing activities and the effects of climate change. An Ecopath model representing the continental shelf of the Israeli Mediterranean coast was calibrated and fitted to the available time series from early 1990’s to 2010 using the Ecosim temporal dynamic modeling approach. The ...


A Study Of Non-Point Source Pollution Reduction Of Tea Garden In Taiwan Feitsui Reservoir Watershed, Chia-Chun Ho, Jen-Yang Lin 2016 National Taipei University of Technology

A Study Of Non-Point Source Pollution Reduction Of Tea Garden In Taiwan Feitsui Reservoir Watershed, Chia-Chun Ho, Jen-Yang Lin

International Congress on Environmental Modelling and Software

The water quality of Feitsui Reservoir, which located in the north of Taiwan, has long been maintained mesotrophic to oligotrophic status. However, the pass rate of total phosphorous (TP) concentration of those three upstream streams, Jingualiao River, Daiyujue River, and Beishi River, have not reached 100% compliance with Class A Standard of water quality from Taiwan EPA. The main source of TP is from agriculture fertilizer, especially from the tea garden. In order to remove the non-point sources pollution, the bioretention was adopted and established at the outlet of the runoff drainage path of tea garden. The tea garden area ...


Identification Of Critical Source Areas Of Nutrient Loads Using Swat Model: Case Study, Zrebar Lake Watershed, Iran, S. Imani, M. Delavar, M. H. Niksokhan 2016 Tarbiat Modares University

Identification Of Critical Source Areas Of Nutrient Loads Using Swat Model: Case Study, Zrebar Lake Watershed, Iran, S. Imani, M. Delavar, M. H. Niksokhan

International Congress on Environmental Modelling and Software

Entrance of nutrients and sediments to water bodies (i.e. Lakes) originating from watersheds is a serious problem in the Iran and other countries. So, the identification of critical source areas (CSAs) of pollutants in terms of watershed hydrologic units is extremely important for effective management of pollutant sources and implementation of best management practices for better protection of water quality. The main objective of this study was to identify and evaluate critical source areas (CSAs) of Nutrient loads using an integrated modeling approach. For this, Soil and Water Assessment Tool (SWAT) was used to identify CSAs of nutrients in ...


Scaling Watershed Models: Modern Approaches To Science Computation With Mapreduce, Parallelization, And Cloud Optimization, Jonathan Flaishans, Meridith Fry, Trip Hook, Nelson Thurman, Jim Carleton, Shelly Thawley, Kurt Wolfe, Dirk Young, Tom Purucker 2016 Oak Ridge Institute for Science and Education

Scaling Watershed Models: Modern Approaches To Science Computation With Mapreduce, Parallelization, And Cloud Optimization, Jonathan Flaishans, Meridith Fry, Trip Hook, Nelson Thurman, Jim Carleton, Shelly Thawley, Kurt Wolfe, Dirk Young, Tom Purucker

International Congress on Environmental Modelling and Software

Environmental models are products of the computer architecture and software tools available at the time of development. Scientifically sound algorithms may persist in their original state even as system architectures and software development approaches evolve and progress. Dating back to the 1980s, the EPA has developed algorithms to estimate the flux of pesticides from treated fields to neighboring water bodies. Recent development of the EPA’s Spatial Aquatic Model (SAM) has provided an opportunity to redevelop, optimize and modernize this code used for regulatory decisions. Use of profiling has indicated a number of efficiencies that could be gained by updating ...


Ogc Sensor Observation Service: Past, Present, Internet Of The Things, Argyris Samourkasidis, Ioannis N. Athanasiadis 2016 Democritus University of Thrace

Ogc Sensor Observation Service: Past, Present, Internet Of The Things, Argyris Samourkasidis, Ioannis N. Athanasiadis

International Congress on Environmental Modelling and Software

Every-day devices are being miniaturized, equipped with transducers and transformed into internet-connected sensor nodes. Above smart-devices, not only can sense their surroundings, but could also store and disseminate their observations. While Internet of the Things (IoT) introduces a new, dynamic, participatory ecosystem of decentralized and collaborative devices, intrinsic heterogeneity hinders its full realization. Diversity of smart-devices and their resulting data formats, demands for interoperable data curation solutions. Open Geospatial Consortium (OGC) has put significant work towards interoperable data interchange. Through Sensor Web Enablement (SWE) and its related service interfaces, and information models, OGC offers syntactic and semantic interoperability. Sensor Observation ...


The Validation Of Algal Growth Processes In A Water Quality Model Using Remote Sensing Data, A. R. Slaughter, S. K. Mantel 2016 Institute for Water Research, Rhodes University

The Validation Of Algal Growth Processes In A Water Quality Model Using Remote Sensing Data, A. R. Slaughter, S. K. Mantel

International Congress on Environmental Modelling and Software

The Water Quality Systems Assessment Model (WQSAM) uses the concept of requisite simplicity within the context of modelling water quality of data scarce South African surface waters. Although WQSAM has successfully simulated the frequency distribution of observed historical nutrient data for various catchments in South Africa, the validation of algal and macrophyte growth processes in the model is a challenge because of a lack of observed data. Remote sensing data can provide an estimate of algal growth within reservoirs. Therefore, this study aimed to validate the WQSAM simulations of algal growth using remote sensing estimations of primary production in reservoirs ...


Chemical Transformation System: Cloud Based Cheminformatic Services To Support Integrated Environmental Modeling, Kurt Wolfe, Nicholas Pope, Rajbir Parmar, Mike Galvin, Caroline Stevens, Eric Weber, Jonathan Flaishans, Tom Purucker 2016 U.S. Environmental Protection Agency

Chemical Transformation System: Cloud Based Cheminformatic Services To Support Integrated Environmental Modeling, Kurt Wolfe, Nicholas Pope, Rajbir Parmar, Mike Galvin, Caroline Stevens, Eric Weber, Jonathan Flaishans, Tom Purucker

International Congress on Environmental Modelling and Software

Integrated Environmental Modeling (IEM) systems that account for the fate/transport of organics frequently require physicochemical properties as well as transformation products. A myriad of chemical property databases exist but these can be difficult to access and often do not contain the proprietary chemicals that environmental regulators must consider. We are building the Chemical Transformation System (CTS) to facilitate model parameterization and analysis. CTS integrates a number of physicochemical property calculators into the system including EPI Suite, SPARC, TEST and ChemAxon. The calculators are heterogeneous in their scientific methodologies, technology implementations and deployment stacks. CTS also includes a chemical transformation ...


Reduction Of Pharmaceutical Loads In Rivers: An Integrated Model That Facilitates Decision-Making Processes, Pau Gimeno, Rafael Marcé, Lluís Bosch, Joaquim Comas, Lluís Corominas 2016 ICRA, Catalan Institute for Water Research, University of Girona

Reduction Of Pharmaceutical Loads In Rivers: An Integrated Model That Facilitates Decision-Making Processes, Pau Gimeno, Rafael Marcé, Lluís Bosch, Joaquim Comas, Lluís Corominas

International Congress on Environmental Modelling and Software

River Basin Authorities require models and decision support tools to predict loads of Pharmaceutical Active Compounds (PhACs) in surface water and facilitate the evaluation of reduction strategies through urban wastewater system upgrades. We propose a water management support tool which describes the fate and removal of PhACs along the entire catchment and can be used to simulate investments to minimize PhACs loads in the environment. The tool integrates a substance- human consumption and excretion model, a wastewater treatment plant (WWTP) model, and a river model. Uncertainty associated to three model parameters (PhAC human consumption and excretion, PhAC degradation constant in ...


Environmental Models As A Service: Enabling Interoperability Through Restful Endpoints And Api Documentation, Jonathan Flaishans, Mike Galvin, Amber Ignatius, Carmen Kuan, Gerard F. Laniak, Kurt Wolfe, Tom Purucker 2016 Oak Ridge Institute for Science and Education

Environmental Models As A Service: Enabling Interoperability Through Restful Endpoints And Api Documentation, Jonathan Flaishans, Mike Galvin, Amber Ignatius, Carmen Kuan, Gerard F. Laniak, Kurt Wolfe, Tom Purucker

International Congress on Environmental Modelling and Software

Achieving interoperability in environmental modeling has evolved as software technology has progressed. The recent rise of cloud computing and proliferation of web services initiated a new stage for creating interoperable systems. Scientific programmers increasingly take advantage of streamlined deployment processes and affordable cloud access to move algorithms and data to the web for discoverability and consumption. In these deployments, environmental models can become available to end users through RESTful web services and consistent application program interfaces (APIs) that consume, manipulate, and store modeling data. RESTful modeling APIs also promote discoverability and guide usability through self-documentation. Embracing the RESTful paradigm allows ...


Design And Implementation Of A Rest Api For The Human Well Being Index (Hwbi), Amber R. Ignatius, Kurt Wolfe, Rajbir Parmar, Jonathan Flaishans, Linda Harwell, Susan Yee, Tom Purucker, Mike Galvin 2016 Oak Ridge Institute for Science and Education

Design And Implementation Of A Rest Api For The Human Well Being Index (Hwbi), Amber R. Ignatius, Kurt Wolfe, Rajbir Parmar, Jonathan Flaishans, Linda Harwell, Susan Yee, Tom Purucker, Mike Galvin

International Congress on Environmental Modelling and Software

Interoperable software development uses principles of component reuse, systems integration, flexible data transfer, and standardized ontological documentation to promote access, reuse, and integration of code. While interoperability principles are increasingly considered technology standards in software engineering, adoption by the environmental modeling community has been slow. We created an Application Programming Interface (API) for the U.S. Environmental Protection Agency’s Human Well-being Index (HWBI) model based on interoperability principles. The HWBI characterizes economic, social, and environmental services during years 2000-2010. For each county in the U.S., specific metrics (e.g., life expectancy, housing affordability, voter turnout) are used to ...


Dynamic Modelling Of Dissolved Organic Carbon Concentrations In The Severn-Thames River Systems And Assessment Of The Impact Of A Water Transfer, Jaeyoung Lee, Gianbattista Bussi, Paul Whitehead, Martyn Futter, Jim Hall 2016 University of Oxford

Dynamic Modelling Of Dissolved Organic Carbon Concentrations In The Severn-Thames River Systems And Assessment Of The Impact Of A Water Transfer, Jaeyoung Lee, Gianbattista Bussi, Paul Whitehead, Martyn Futter, Jim Hall

International Congress on Environmental Modelling and Software

The aim of this modelling study has been to assess Dissolved Organic Carbon (DOC) in the River Thames and River Severn and the impacts of water transfers from in drought or low flow years. The transfer of water from the River Severn to the Thames is a water resource option under consideration by Thames Water as part of Water Resource Management Plan 2014. Rising trends of DOC in upland rivers in Wales have been observed over the past 15 years and with the proposed water transfer there is a chance that high DOC concentrations might be transferred across to the ...


Cloud Services Integration Platform (Csip) Model And Data Services, Olaf David, W. Lloyd, J. Carlson, M. Arabi, T. Wible 2016 Colorado State University

Cloud Services Integration Platform (Csip) Model And Data Services, Olaf David, W. Lloyd, J. Carlson, M. Arabi, T. Wible

International Congress on Environmental Modelling and Software

The Cloud Services Integration Platform (CSIP) is an open platform tailored to develop and deploy microservices for environmental models with data sources. Its emergence responded to needs within the modelling community for rapid and wide access to such modelling resources. CSIP was designed from the ground up (1) to account for modelling service elasticity and scalability, (2) to leverage contemporary computational approaches, (3) to address interoperability and traceability within operational settings, (4) to allow platform and language agnostic service access and cloud agnostic deployment while providing a simple, OMS3 based non-invasive approach to leverage legacy and new modelling solutions with ...


Improving Component Interoperability And Reusability With The Java Connection Framework (Jcf): Overview And Application To The Ages-W Environmental Model, James C. Ascough II, Nathan P. Lighthart, Holm Kipka, Olaf David, Timothy R. Green, Gregory S. McMaster 2016 USDA-ARS-PA, Water Management and Systems Research Unit

Improving Component Interoperability And Reusability With The Java Connection Framework (Jcf): Overview And Application To The Ages-W Environmental Model, James C. Ascough Ii, Nathan P. Lighthart, Holm Kipka, Olaf David, Timothy R. Green, Gregory S. Mcmaster

International Congress on Environmental Modelling and Software

Environmental modeling framework (EMF) design goals are multi-dimensional and often include many aspects of general software framework development. Many functional capabilities offered by current EMFs are closely related to interoperability and reuse aspects. For example, an EMF needs to support development productivity and interoperability with other modeling tools, protocols, and programming languages, thereby minimizing overall integration effort. Facilitating data exchange between modules, classes, or components representing parts of a whole model is also an essential EMF feature. In general, EMFs should enable flexible model development rather than enforce complex and rigid development concepts. Additionally, full-featured EMFs should enable module connectivity ...


From Raw Material To Biofuel Demand: The Agraf Model, Coline Assaiante, Pierre-Alain Jayet, Frédérick Lantz 2016 INRA

From Raw Material To Biofuel Demand: The Agraf Model, Coline Assaiante, Pierre-Alain Jayet, Frédérick Lantz

International Congress on Environmental Modelling and Software

The search for energetic independence, for boosting local economies and for reducing polluting emissions, has supported bioenergy’s development and biofuels in particular. Mandatory biofuels incorporation rates have been recently established in several countries, including the European Union, in order to promote the use of renewable energetic resources in spite of several criticisms toward biofuels relating to their impacts on food security, the environment and the conflicts associated with resource allocations. To study existing concerns on the growth, the profitability, the limiting factors biofuels, as well as the impacts of current policies in force, a highly parameterized operational modelling tool ...


Combined Recursive Clustering And Partitioning To Define Optimal Dmas Of Water Distribution Networks, A. Di Nardo, M. Di Natale, S. Chianese, D. Musmarra, G. F. Santonastaso 2016 Second University of Naples, Action Group CTRL+SWAN of European Innovative Partnership on Water

Combined Recursive Clustering And Partitioning To Define Optimal Dmas Of Water Distribution Networks, A. Di Nardo, M. Di Natale, S. Chianese, D. Musmarra, G. F. Santonastaso

International Congress on Environmental Modelling and Software

As known, the water network partitioning in district meter areas (DMAs) is one of the most effective way to improve water loss detection, pressure management and user protection from accidental and intentional contamination. Nevertheless, the definition of permanent DMAs is very complex because can drastically change the hydraulic performance of a network, since the insertion of gate valves in several pipes can reduce its energy and topological redundancy. In the last years, some optimization procedures, based on graph theory, network analysis and heuristic optimization methods, allowed to overcame the empirical approaches traditionally adopted to define the permanent district meter areas ...


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