Methodology to Increase Flexibility in Inter-Region Flow Control for Urban Traffic

2021 ◽  
pp. 036119812199742
Author(s):  
Sunghoon Kim ◽  
Monica Menendez ◽  
Hwasoo Yeo
Keyword(s):  
Flow Control ◽  
Real Time ◽  
Urban Traffic ◽  
Test Results ◽  
Flow Restriction ◽  
Region Flow ◽  
The Subject ◽  
Negative Impacts ◽  
Transfer Flow ◽  
Supply Level

Perimeter control is used to regulate transfer flows between urban regions. The greedy control (GC) method takes either the minimum or the maximum for the control inputs. Although it has the advantage of simplicity for real-time feasibility, a few existing studies have shown that it can sometimes have negative impacts because of unnecessary transfer flow restrictions. To reduce unnecessary restrictions, this study provides a method that gives flexibility to ease the strict conditions of the conventional GC. First, we propose a modification as a way of granting exceptions to the flow restriction under specific conditions. Second, we develop an algorithm to determine the threshold dynamically for accepting the exception, by comparing the possible outflow loss of the subject region and the possible outflow gain of its neighboring regions. The test results show that this flexible greedy control can handle the balance between the transfer demands and the greed of regions for securing the supply level, while increasing the performance in both vehicle hours traveled and trip completion.

scholarly journals Real-Time Decision Making for Autonomous City Vehicles

2010 ◽  
Vol 22 (6) ◽  
pp. 694-701 ◽  
Author(s):  
Andrei Furda ◽  
◽  
Ljubo Vlacic
Keyword(s):  
Decision Making ◽  
Control System ◽  
Real Time ◽  
System Architecture ◽  
Urban Traffic ◽  
Decision Making Process ◽  
Test Results ◽  
World Model ◽  
State Of Research ◽  
Control System Architecture

This paper addresses the topic of real-time decision making by autonomous city vehicles. Beginning with an overview of the state of research, the paper presents the vehicle decision making & control system architecture, explains the subcomponents which are relevant for decision making (World Model and Driving Maneuver subsystem), and presents the decision making process. Experimental test results confirmthe suitability of the developed approach to deal with the complex real-world urban traffic.

IMPROVE THE INTERETATION OF STUDY SUBJECTS PANCASILA AND CITIZENSHIP EDUCATION BY APPLYING KONSTEXTUAL LEARNING MODEL BERBASIS A TASK IN CLASS INFORMATICS XI SMK BINA ECLECTUS ACADEMIC YEAR 2015/2016

EDUKASI ◽  
2016 ◽  
Vol 13 (2) ◽  
Author(s):  
Hasanudin S. Usman
Keyword(s):  
Teaching And Learning ◽  
Learning Model ◽  
Positive Influence ◽  
Motivation To Learn ◽  
Test Results ◽  
Applied Learning ◽  
Know How ◽  
Design Activities ◽  
The Subject ◽  
Academic Year

The purpose of this research is to know how to incerease the students’ learning achievement that has been applied learning contextual task-based learning model and to know the influence of contextual learning in  the task-based teaching model to improve achievemen and motivation to learn the material pe civis lesson.   This research is an action research by theree rounds. Each round consists of four phases. Design activities are observation, and revesion. The subject of the research is XI grade students of Bina Informatika Ternate accademic year 2015/2016. Data obtained in the form of a formative test results, observation sheet teaching and learning activities. The results of the research showed that students’ achivement increased from round I to III that the round 1, (70.00 % ), (92,50 %)  3 cycles, conclusions of this research is the method of cooperatif learning can be a positive influence on students motivation and achievement in material udaya politics in Indonesia. It means that this model can be used as one of the alternative learning for Pkn.            Kata  kunci: PKn, cooperative learning method

PENGEMBANGAN ”REAL TIME TRAFFIC INFORMATION SYSTEM” BAGI PENGGUNA JALAN

2013 ◽  
Vol 12 (3) ◽  
Author(s):  
Rusmadi Suyuti
Keyword(s):  
Information System ◽  
Real Time ◽  
Travel Demand ◽  
Urban Traffic ◽  
Road User ◽  
Traffic Information ◽  
Estimation Methods ◽  
Traffic Counts ◽  
Real Time Traffic ◽  
Demand Models

Traffic information condition is a very useful  information for road user because road user can choose his best route for each trip from his origin to his destination. The final goal for this research is to develop real time traffic information system for road user using real time traffic volume. Main input for developing real time traffic information system is an origin-destination (O-D) matrix to represent the travel pattern. However, O-D matrices obtained through a large scale survey such as home or road side interviews, tend to be costly, labour intensive and time disruptive to trip makers. Therefore, the alternative of using traffic counts to estimate O-D matrices is particularly attractive. Models of transport demand have been used for many years to synthesize O-D matrices in study areas. A typical example of the approach is the gravity model; its functional form, plus the appropriate values for the parameters involved, is employed to produce acceptable matrices representing trip making behaviour for many trip purposes and time periods. The work reported in this paper has combined the advantages of acceptable travel demand models with the low cost and availability of traffic counts. Two types of demand models have been used: gravity (GR) and gravity-opportunity (GO) models. Four estimation methods have been analysed and tested to calibrate the transport demand models from traffic counts, namely: Non-Linear-Least-Squares (NLLS), Maximum-Likelihood (ML), Maximum-Entropy (ME) and Bayes-Inference (BI). The Bandung’s Urban Traffic Movement survey has been used to test the developed method. Based on several statistical tests, the estimation methods are found to perform satisfactorily since each calibrated model reproduced the observed matrix fairly closely. The tests were carried out using two assignment techniques, all-or-nothing and equilibrium assignment.  

TRABALHO DE ENFERMAGEM E PRECARIZAÇÃO: UMA REVISÃO INTEGRATIVA

2019 ◽  
Vol 9 (4) ◽  
Author(s):  
Eugenio Fuentes Pérez Júnior ◽  
Helena Maria Scherlowski Leal David
Keyword(s):  
Occupational Health ◽  
Psychological Health ◽  
Qualitative Approach ◽  
Review Of The Literature ◽  
Work Process ◽  
Nursing Knowledge ◽  
Physical And Psychological Health ◽  
The Subject ◽  
Negative Impacts ◽  
Health Nursing

Objetivos: identificar e discutir a produção do conhecimento da enfermagem sobre a influência da precarização no processo de trabalho e a saúde do trabalhador de enfermagem. Metodologia: estudo bibliográfico com abordagem qualitativa, de revisão integrativa da literatura, realizada nas bases BVS, portal de periódicos CAPES, PubMed e Science Direct, no período de 2010 a 2016 e submetidos a análise de conteúdo Resultados: identificou-se a baixa produção da literatura acerca do tema. Na análise qualitativa obteve-se as seguintes categorias: o processo de precarização do trabalho da enfermagem e repercussões da precarização ao processo de trabalho da enfermagem e a saúde do trabalhador. Conclusão: identificou-se a incipiência da produção da enfermagem sobre o tema. Como repercussão da precarização verificou-se o desgaste e sobrecarga de trabalho, assim como impactos negativos na saúde física e psíquica dos trabalhadores.Descritores: Enfermagem do Trabalho; Saúde do Trabalhador; Riscos Ocupacionais.NURSING WORK AND PRECARIOUSNESS: AN INTEGRATIVE REVIEW.Objectives: to identify and discuss the production of nursing knowledge about the influence of precariousness in the work process and the health of the nursing worker. Methodology: a bibliographical study with qualitative approach, of an integrative review of the literature, carried out in the VHL databases, CAPES journal, PubMed and Science Direct, from 2010 to 2016 and submitted to content analysis. Results: low production of Literature on the subject. In the qualitative analysis, the following categories were obtained: the process of precariousness of nursing work and repercussions of the precariousness to the nursing work process and the health of the worker. Conclusion: the incipience of nursing production on the theme was identified. As a consequence of the precariousness, there was the wear and overload of work, as well as negative impacts on the physical and psychological health of the workers.Descriptors: Occupational health nursing, occupational health, occupational risks.TRABAJO DE ENFERMERÍA Y PRECARIZACIÓN: UNA REVISIÓN INTEGRATIVA.Objetivos: identificar y discutir la producción del conocimiento de la enfermería sobre la influencia de la precarización en el proceso de trabajo y la salud del trabajador de enfermería. Metodologia: estudio bibliográfico con abordaje cualitativo, de revisión integrativa de la literatura, realizada en las bases BVS, portal de revistas CAPES, PubMed y Science Direct, en el período de 2010 a 2016 y sometidos a análisis de contenido. Resultados: se identificó la baja producción de la producción Literatura sobre el tema. En el análisis cualitativo se obtuvieron las siguientes categorías: el proceso de precarización del trabajo de la enfermería y repercusiones de la precarización al proceso de trabajo de la enfermería y la salud del trabajador. Conclusión: se identificó la incipiente de la producción de la enfermería sobre el tema. Como repercusión de la precarización se verificó el desgaste y sobrecarga de trabajo, así como impactos negativos en la salud física y psíquica de los trabajadores.Descriptores: Enfermería del Trabajo; Salud Laboral; Riesgos Laborales.

scholarly journals Preanalytical Issues and Cycle Threshold Values in SARS-CoV-2 Real-Time RT-PCR Testing: Should Test Results Include These?

ACS Omega ◽  
2021 ◽  
Author(s):  
Ilka Engelmann ◽  
Enagnon Kazali Alidjinou ◽  
Judith Ogiez ◽  
Quentin Pagneux ◽  
Sana Miloudi ◽  
...  
Keyword(s):  
Real Time ◽  
Test Results ◽  
Threshold Values ◽  
Rt Pcr ◽  
Cycle Threshold

scholarly journals Hydraulic optimisation of multiple flow control locations for the design of local real time control systems

2020 ◽  
pp. 1-10
Author(s):  
M. Eulogi ◽  
S. Ostojin ◽  
P. Skipworth ◽  
J. D. Shucksmith ◽  
A. Schellart
Keyword(s):  
Flow Control ◽  
Control Systems ◽  
Real Time ◽  
Real Time Control ◽  
Time Control

scholarly journals A Decision-Making Model on the Impact of Vehicle Use on Urban Safety

2021 ◽  
Vol 13 (6) ◽  
pp. 3585
Author(s):  
Dariusz Masłowski ◽  
Małgorzata Dendera-Gruszka ◽  
Ewa Kulińska
Keyword(s):  
Decision Making ◽  
Internal Combustion Engines ◽  
Urban Traffic ◽  
Brake Pads ◽  
Wear And Tear ◽  
Urban Safety ◽  
Negative Impacts ◽  
Urban Conditions ◽  
Decision Making Model ◽  
The Impact

In the current era of urban development, people are already using electric vehicles more and more often for transport purposes, which reduces negative impacts on the environment. However, there are still vehicles in towns and cities that run on ordinary internal combustion engines. Performing optimization measures on the operation of these vehicles improves their performance, which can result in positive sustainable development effects. This article presents measures to reduce the wear and tear of urban vehicles and outlines a decision model to determine which of the vehicle parts described suffer the most frequent wear and tear under urban conditions. The article presents a list of structural elements that are most affected by urban traffic, as well as corrective actions to improve such specialized vehicles. Based on the decision analysis, Rule 1 was eliminated as having the least significant impact on vehicle wear and tear, and the least significant impact on urban safety. On the other hand, the most worn-out elements were found to be gearboxes, clutches, bus levelling electronics, and brake pads and discs. The decision-making model made it possible to identify the factors which have the greatest impact on reducing safety in urban spaces.

scholarly journals An Index of Regional Snow-Pack Stability based on Natural Slab Avalanches

1985 ◽  
Vol 31 (108) ◽  
pp. 67-73
Author(s):  
Arthur Judson ◽  
Rudy M. King
Keyword(s):  
Real Time ◽  
Testing Procedure ◽  
Statistical Distribution ◽  
Colorado Front Range ◽  
Sequential Testing ◽  
Test Results ◽  
Snow Pack ◽  
Front Range ◽  
Time Evaluation

AbstractAn index of regional snow-pack stability based on occurrences of natural slab avalanches was developed using a statistical distribution and a sequential testing procedure. The study interprets avalanche information on 185 paths in the Colorado Front Range. Results show general agreement with operational hazard estimates; test results have real-time evaluation potential.

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