scholarly journals Design and evaluation of a new intersection model to minimize congestions using VISSIM software

2020 ◽  
Vol 10 (1) ◽  
pp. 48-56 ◽  
Author(s):  
Jana Fabianova ◽  
Peter Michalik ◽  
Jaroslava Janekova ◽  
Michal Fabian
Keyword(s):  
Optimal Solution ◽  
Line Length ◽  
Traffic Light ◽  
Traffic Modelling ◽  
Current State ◽  
Intersection Model ◽  
Infrastructure Design ◽  
Design Software ◽  
Design And Testing ◽  
Traffic Simulations

AbstractTraffic modelling and simulation is one of the frequent tools used in road infrastructure design. Software tools designed for traffic simulations are an important supportive tool in decision-making and in choosing the optimal solution. The aim of this paper is to introduce the application of the VISSIM program, in the design and testing a model of the traffic-light-controlled intersection. The traffic on the selected congested intersection is modelled and simulated first for the current state, then for two models with modifications that are to increase the throughput of the intersection. The monitored criterion of the intersection throughput is the length of queues. Both adjustments have led to a significant reduction of the number of vehicles waiting in direction of the greatest congestions. In the first model, the average line length was reduced by 75%, and in the second model, the modifications lead to a fluent passage of right-turn vehicles and a significant reduction in vehicle lines for other directions.

scholarly journals Road Intersection Improvement – Main Step for Emission Reduction and Fuel Economy

2021 ◽  
Vol 939 (1) ◽  
pp. 012026
Author(s):  
Sh Khakimov ◽  
S Rajapova ◽  
F Amirkulov ◽  
E Islomov
Keyword(s):  
Fuel Consumption ◽  
Fuel Economy ◽  
Emission Reduction ◽  
Main Step ◽  
Cycle Duration ◽  
Traffic Light ◽  
Current State ◽  
Toxic Gases ◽  
Intersection Model ◽  
Made In

Abstract This article demonstrates the changes made in the intersection model using PTV Vissim have an impact on reducing an amount of GHG and fuel consumption. One of the most problematic intersections in Namangan, Uzbekistan, was selected and traffic flow during peak hours was studied in order to prepare the simulation of the intersection. The article offers two types of solution as so to lessen the amount of toxic gases and fuel consumption. In the first solution, the situation was improved by optimizing the phase of the traffic light and by changing the cycle duration. The second solution was to reduce the amount of toxic gases and fuel consumption from vehicles by changing the geometric dimensions of the intersection. After the implementation of both solutions, the current state of LOS was raised from D to A level.

scholarly journals Ant Colony Optimization for Real Time Traffic Lights Control on a Single Intersection

2020 ◽  
Vol 14 (02) ◽  
pp. 196 ◽  
Author(s):  
Nouha Rida ◽  
Mohammed Ouadoud ◽  
Aberrahim Hasbi
Keyword(s):  
Road Traffic ◽  
Green Light ◽  
Optimal Solution ◽  
Ant Colony ◽  
Traffic Data ◽  
Traffic Light ◽  
Traffic Lights ◽  
The Road ◽  
Real Time Traffic ◽  
On The Road

In this paper, we present a new scheme to intelligently control the cycles and phases of traffic lights by exploiting the road traffic data collected by a wireless sensor network installed on the road. The traffic light controller determines the next phase of traffic lights by applying the Ant Colony Optimazation metaheuristics to the information collected by WSN. The objective of this system is to find an optimal solution that gives the best possible results in terms of reducing the waiting time of vehicles and maximizing the flow crossing the intersection during the green light. The results of simulations by the SUMO traffic simulator confirm the preference of the developed algorithm over the predefined time controller and other dynamic controllers.

scholarly journals Prototypes of User Interfaces for Mobile Applications for Patients with Diabetes

Computers ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 1 ◽  
Author(s):  
Jan Pavlas ◽  
Ondrej Krejcar ◽  
Petra Maresova ◽  
Ali Selamat
Keyword(s):  
Blood Glucose ◽  
User Interfaces ◽  
Mobile Applications ◽  
Eating Habits ◽  
Relevant Literature ◽  
Optimal Solution ◽  
Glucose Levels ◽  
Current State ◽  
Blood Glucose Levels ◽  
Patients With Diabetes

We live in a heavily technologized global society. It is therefore not surprising that efforts are being made to integrate current information technology into the treatment of diabetes mellitus. This paper is dedicated to improving the treatment of this disease through the use of well-designed mobile applications. Our analysis of relevant literature sources and existing solutions has revealed that the current state of mobile applications for diabetics is unsatisfactory. These limitations relate both to the content and the Graphical User Interface (GUI) of existing applications. Following the analysis of relevant studies, there are four key elements that a diabetes mobile application should contain. These elements are: (1) blood glucose levels monitoring; (2) effective treatment; (3) proper eating habits; and (4) physical activity. As the next step in this study, three prototypes of new mobile applications were designed. Each of the prototypes represents one group of applications according to a set of given rules. The most optimal solution based on the users’ preferences was determined by using a questionnaire survey conducted with a sample of 30 respondents participating in a questionnaire after providing their informed consent. The age of participants was from 15 until 30 years old, where gender was split to 13 males and 17 females. As a result of this study, the specifications of the proposed application were identified, which aims to respond to the findings discovered in the analytical part of the study, and to eliminate the limitations of the current solutions. All of the respondents expressed preference for an application that includes not only the key functions, but a number of additional functions, namely synchronization with one of the external devices for measuring blood glucose levels, while five-sixths of them found suggested additional functions as being sufficient.

Additive Manufacturing for Civil Infrastructure Design and Construction: Current State and Gaps

2018 ◽  
Author(s):  
Abhinav Bhardwaj ◽  
Na Zou ◽  
Z. J. Pei
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Consumer Goods ◽  
Medical Industry ◽  
Civil Infrastructure ◽  
Current State ◽  
Infrastructure Design ◽  
Design And Construction ◽  
State Of The Field

Additive manufacturing (AM) has applications in several fields ranging from aerospace and consumer goods to the medical industry. However, applications of AM in civil infrastructure design and construction are very limited. Based on information shared at the NSF workshop on Additive Manufacturing (3D Printing) for Civil Infrastructure Design and Construction in July 2017, this paper summarizes the current state of the field, gaps, and recommendations.

Software-Defined Vehicular Adhoc Network

2021 ◽  
pp. 141-164
Author(s):  
Ram S. Raw ◽  
Manish Kumar ◽  
Nanahay Singh
Keyword(s):  
Theoretical Approach ◽  
Research Work ◽  
Software Defined Networking ◽  
Future Generation ◽  
Future Research ◽  
Intelligent Vehicle ◽  
Current State ◽  
Infrastructure Design ◽  
Vehicle Networks ◽  
Adhoc Networks

Vehicular adhoc networks (VANETs) and software-defined networking (SDN) are the key enablers of 5G technology in developing intelligent vehicle networks and applications for the next generation. In recent years, many studies have been concentrated on SDN and VANET incorporation, and many researchers worked at various architecture-related issues along with the advantages of software-defined VANET services and features to adapt them. This chapter discusses the current state of the art of SD-VANET with the directions of future research work. This chapter presents a theoretical approach of architectures of software-defined VANET for its networking infrastructure design, functionalities, benefits, and challenges of future generation networks.

Pengembangan Infrastruktur Pembelajaran Daring Menggunakan Antena Unidirectional

2021 ◽  
Vol 5 (4) ◽  
pp. 760-767
Author(s):  
Rufman Akbar ◽  
Chaerul Anwar ◽  
Johannes Hamonangan Siregar
Keyword(s):  
Internet Connection ◽  
Network Connection ◽  
Marginal Areas ◽  
Infrastructure Design ◽  
Signal Amplifier ◽  
Network Quality ◽  
Client Side ◽  
To Receive ◽  
Design And Testing ◽  
Network Device

Situation during COVID19 pandemic, requires all schools to conduct online learning. This condition is done to prevent the spread of pandemic. The problem is that the infrastructure is not fully supported. Learning in marginal areas is still constrained by the difficulty of the signal or internet connection. This research was conducted to obtain an infrastructure design that can be used in areas with minimal internet connection, or even no internet network connection. Using R&D, the research begins by designing a network device on the school side – Acces Point, also a tool to expand coverage -  repeater. Furthermore, design and testing of signal amplifier antennas that can be used on the client side is carried out. For the client side, several types of amplifier antennas are made that can be used to receive Wifi frequencies. There are three types of antennas that are made and tested, namely Yagi, Yagi Cross, and cantennas. Both are Unidirectional antenna. Connection quality is measured with a Wifi analyzer device to determine network quality. As for mobile phones, it is measured using the Wifi Master Key. The result obtained is a WELAN infrastructure design which is equipped with unidirectional antenna design with a total range of 8 Km.  

Experiences and learnings from induced seismicity regulation in Alberta

2018 ◽  
Vol 6 (2) ◽  
pp. SE15-SE21 ◽  
Author(s):  
Todd Shipman ◽  
Ron MacDonald ◽  
Tom Byrnes
Keyword(s):  
Hydraulic Fracturing ◽  
Induced Seismicity ◽  
Red Light ◽  
Seismic Hazard Assessment ◽  
Traffic Light ◽  
Regulatory Requirements ◽  
Current State ◽  
New Information ◽  
Response Plan ◽  
The Town

We have examined the experiences and learnings acquired through the implementation of the Alberta Energy Regulator’s (AER) subsurface order no. 2 (sub or no. 2) traffic light protocol (TLP). On 22 January 2015, a 4.4 [Formula: see text] seismic event occurred near a hydraulic fracturing operation in west-central Alberta and was felt by residents of the town of Fox Creek. On 19 February 2015, the AER issued sub or no. 2 to help manage induced seismicity, as related to hydraulic fracturing of the Duvernay zone in a prescribed area around Fox Creek. Sub or no. 2 requires operators affected by the order to conduct a seismic hazard assessment; prepare a monitoring, mitigation, and response plan; conduct seismic monitoring; and adhere to a TLP. Since sub or no. 2 was issued, two “red light” events (i.e., [Formula: see text]) have occurred in the area. Review and analysis of data and information collected under sub or no. 2 facilitate an improved understanding of the key geologic and operational controls on induced seismicity and allow for an assessment of the efficacy of industry practices and regulatory requirements. We still support the use of local magnitude [Formula: see text] for our TLP based on the purpose and outcomes provided by sub or no. 2. Conversations with operators have suggested that [Formula: see text] orientation should inform the wells’ trajectory with respect to critically stressed faults. The requirement of a response plan was part of the learning process developed under sub or no. 2. Through this exercise, the AER has developed a better understanding of the goals of the response plans, which were better defined through conversations with operators. Sub or no. 2 is consistent with the current state of the evolving science of induced seismicity and has the capacity to change as new information is obtained.

scholarly journals Rekayasa Lalu Lintas Pada Kawasan Simpang Jl. Lingkar Tengah – Jl. DR. Leimena Di Kota Makassar

2020 ◽  
Vol 1 (1) ◽  
pp. 9
Author(s):  
Mellyarti Mellyarti ◽  
Zulkifli Zulkifli
Keyword(s):  
Human Life ◽  
Service Level ◽  
Degree Of Saturation ◽  
Traffic Light ◽  
Traffic Modelling ◽  
Traffic Jam ◽  
Road Capacity ◽  
Traffic Rate ◽  
Road Performance ◽  
Road Junction

Transportation problem, either in general or specifically in traffic, is a phenomenon occuring in human life. As the population of city increased, so does the traffic rate. If this is not followed by adequate improvement of transportation infrastructure, an imbalance might occur which will result in traffic jam. It can be seen particularly at Lingkar Tengah – Dr. Leimena road junction connecting Jalan Perintis Kemerdekaan - Dr Leimena road due to driver/rider against the direction. Data analysis and planning using method of road capacity manual (MKJI 1997) and the traffic modelling using PTV Vissim. Based on road performance analysis it is known that DS (degree of saturation) is 0.12 with service level ‗A‘ and average speed ≥23km/h with service level ‗D‘. From the calculation result, modelling is conducted using PTV Vissim modelling. Alternative for handling the intersection is using 2 methods, which are traffic light signaling for 3 phases with immediate straight at west corner and immediate left turning at east corner and bridge closure on Dr. Leimena road. Using PTV Vissim, the result is that intensity of travel time increases about 47.68% and 57.40% on the intersection.

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