scholarly journals Pavement Quality Index Rating Strategy Using Fracture Energy Analysis for Implementing Smart Road Infrastructure

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4231
Author(s):  
Samuel Abejide ◽  
Mohamed M. H. Mostafa ◽  
Dillip Das ◽  
Bankole Awuzie ◽  
Mujib Rahman
Keyword(s):  
Moisture Content ◽  
Management System ◽  
Quality Index ◽  
Road Traffic ◽  
Developed Countries ◽  
Pavement Management ◽  
Sustainable Transportation ◽  
Base Layer ◽  
Deformation Model ◽  
Content Increase

Developing a responsive pavement-management infrastructure system is of paramount importance, accentuated by the quest for sustainability through adoption of the Road Traffic Management System. Technological advances have been witnessed in developed countries concerning the development of smart, sustainable transportation infrastructure. However, the same cannot be said of developing countries. In this study, the development of a pavement management system at network level was examined to contribute towards a framework for evaluating a Pavement Quality Index and service life capacity. Environmental surface response models in the form of temperature and moisture variations within the pavement were applied, using sensor devices connected to a data cloud system to carry out mathematical analysis using a distinctive mesh analysis deformation model. The results indicated variation in the Resilient Modulus of the pavement, with increasing moisture content. Increase in moisture propagation increased saturation of the unbound granular base which reduced the elastic modulus of the sub-base and base layer and reduced the strength of the pavement, resulting in bottom-up cracks and cracking failure. The horizontal deformation reduced, indicating that the material was experiencing work hardening and further stress would not result in significant damage. Increasing temperature gradient resulted in reduced stiffness of the asphalt layer. In tropical regions, this can result in rutting failure which, over time, results in top-down cracks and potholes, coupled with increasing moisture content.

Type of Slope Failure Identified from Pore Water Pressure and Moisture Content Measurements

2015 ◽  
Vol 744-746 ◽  
pp. 690-694
Author(s):  
Muhammad Rehan Hakro ◽  
Indra Sati Hamonangan Harahap
Keyword(s):  
Moisture Content ◽  
Pore Pressure ◽  
Slope Failure ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Failure Process ◽  
Small Scale ◽  
Content Increase ◽  
Sudden Increase ◽  
Model Slope

Rainfall-induced landslides occur in many parts of the world and causing a lot of the damages. For effective prediction of rainfall-induced landslides the comprehensive understanding of the failure process is necessary. Under different soil and hydrological conditions experiments were conducted to investigate and clarify the mechanism of slope failure. The failure in model slope was induced by sprinkling the rainfall on slope composed of sandy soil in small flume. Series of tests were conducted in small scale flume to better understand the failure process in sandy slopes. The moisture content was measured with advanced Imko TDR (Time Domain Reflectrometry) moisture sensors in addition to measurements of pore pressure with piezometers. The moisture content increase rapidly to reach the maximum possible water content in case of higher intensity of rainfall, and higher intensity of the rainfall causes higher erosion as compared to smaller intensity of the rainfall. The controlling factor for rainfall-induced flowslides was density of the slope, rather than intensity of the rainfall and during the flowslide the sudden increase in pore pressure was observed. Higher pore pressure was observed at the toe of the slope as compared to upper part of the slope.

Improving the quality and safety of dairy products by implementing a management system

2021 ◽  
pp. 28-31
Author(s):  
Natalia A. Jurk ◽  
Keyword(s):  
Food Safety ◽  
Management System ◽  
Safety Management ◽  
Quality Management System ◽  
Raw Materials ◽  
Developed Countries ◽  
Control Points ◽  
Quality And Safety ◽  
Critical Control Points ◽  
Safety Risks

In order to achieve a certain level of food production, it is necessary to manage its quality and safety. Currently, the quality management system based on the principles of HACCP is widely recognized and is the only method for ensuring food security in all developed countries. The ultimate goal of this system is to eliminate or reduce any food safety risks by preventing them. During the research, the main, auxiliary raw materials and the finished product were identified; flowcharts for the production of an enriched whey drink were developed. On the basis of the developed block diagrams, an analysis of microbiological, chemical, physical and qualitative hazards was carried out, it was determined which of the hazardous factors are the most critical, can harm health and must be eliminated or reduced to acceptable levels. Based on the analysis of significant hazards using the Decision Tree algorithm, two critical control points (pasteurization and cooling) were established. Measures for the management of critical control points are established in the HACCP plan, which reflects all CCPs of the production process of the research object and actions for monitoring and managing them. The introduction of elements of a food safety management system into practice contributes to the production of safe products of appropriate quality in compliance with applicable requirements and standards.

scholarly journals Sustainable Maintenance of low level road network

2018 ◽  
Vol 196 ◽  
pp. 04063
Author(s):  
Jan Mikolaj ◽  
L’uboš Remek
Keyword(s):  
Network Management ◽  
Management System ◽  
Road Network ◽  
Road Networks ◽  
Pavement Management ◽  
Network Management System ◽  
Simple Method ◽  
Low Level ◽  
Technical Requirements ◽  
Local Road

Main goal of Road Network Management System is to ensure safety and continuity of road traffic on road network with low intensity and lower technical requirements. This is achieved with pavement management system (main component of road network management system). Most countries developed custom Pavement management systems (PMS) based on deterministic or probabilistic approach. Local road administrators of low level road networks often lack the software equipment such as HDM-4, RoSy, Exor, etc. These and similar PMS Most PMS, however effective, are often cumbersome, demanding in regard to energy, know-how and software equipment. The majority of local road administrators of rural road networks thus resort to non-effective reactive maintenance strategies. This article describes an easy to use method, based on predetermined maintenance repair & rehabilitation standards. Secondly, a simple method, based on road user cost, is introduced that administrator can use to prepare a list of road section eligible for repair according to their repair priority.

scholarly journals Mobile Road Traffic Management System Using Weighted Sensor

2017 ◽  
Vol 11 (5) ◽  
pp. 147 ◽  
Author(s):  
Solomon Adegbenro Akinboro ◽  
Johnson A Adeyiga ◽  
Adebayo Omotosho ◽  
Akinwale O Akinwumi
Keyword(s):  
Real Time ◽  
Traffic Control ◽  
Urban Areas ◽  
Traffic Management ◽  
Management System ◽  
Road Traffic ◽  
Traffic Information ◽  
Traffic Light ◽  
Real Time Traffic ◽  
Traffic Management System

<p><strong>Vehicular traffic is continuously increasing around the world, especially in urban areas, and the resulting congestion ha</strong><strong>s</strong><strong> be</strong><strong>come</strong><strong> a major concern to automobile users. The popular static electric traffic light controlling system can no longer sufficiently manage the traffic volume in large cities where real time traffic control is paramount to deciding best route. The proposed mobile traffic management system provides users with traffic information on congested roads using weighted sensors. A prototype of the system was implemented using Java SE Development Kit 8 and Google map. The model </strong><strong>was</strong><strong> simulated and the performance was </strong><strong>assessed</strong><strong> using response time, delay and throughput. Results showed that</strong><strong>,</strong><strong> mobile devices are capable of assisting road users’ in faster decision making by providing real-time traffic information and recommending alternative routes.</strong></p>

scholarly journals THE BASIC FRAMEWORK FOR THE IMPLEMENTATION OF THE GREEN ECONOMY MODEL IN THE BUSINESS PROCESSES OF THE FOOD INDUSTRY

2021 ◽  
Vol 7 (167) ◽  
pp. 28-33
Author(s):  
S. Burlutska ◽  
D. Krasovsky
Keyword(s):  
Economic Growth ◽  
Management System ◽  
Human Life ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Green Economy ◽  
Economic Science ◽  
Growth Strategies ◽  
Negative Consequences ◽  
The World

At present, the totality of global environmental and economic threats and challenges has put the world economic science in front of the need to find a new way of developing the world economy. The new model of economic growth must satisfy two main criteria: firstly, to find a qualitatively new direction of growth, and secondly, to ensure the preservation and improvement of the quality of the environment for human life, that is, to ensure new economic growth without negative consequences for the environment. Many modern scientists see the solution of these problems in a relatively new direction in the economy, which has existed for just over 30 years - the "green" economy. Their opinion is shared by leading politicians and civil servants of the world's economic powers. The directions of the "green" economy system are considered: introduction of renewable energy sources; improvement of the waste management system; improvement of the water resources management system; development of "clean" transport; organic farming in agriculture; energy efficiency in housing and communal services; conservation and effective management of ecosystems. As a result of the analysis, key ones were identified directions in which the green economy is moving, systematized basic support tools that divided into price and non-price, in more detail characterized by price with the separation of financial tools that experts focus on international organizations for sustainable development. The main elements of the state are defined green growth strategies and analyzed the situation harmonization of the influence of developed countries on the development of "green" economy. An understanding of the essence and description of the goals of "green" technologies is proposed, which implies work not with the consequences, but with the causes of environmental problems. Considered the "green" experience of developed countries and global companies. In conclusion, the author emphasizes that the concept of a "green" economy is an innovative development project, but to achieve sustainability it is necessary to use the experience of other companies. One of the main problems was noticed, this is the use of pseudo environmental friendliness by companies for their own commercial purposes.

scholarly journals Proposal and Implementation of a Heliport Pavement Management System: Technical and Economic Comparison of Maintenance Strategies

2021 ◽  
Vol 13 (16) ◽  
pp. 9201 ◽  
Author(s):  
Paola Di Mascio ◽  
Alessio Antonini ◽  
Piero Narciso ◽  
Antonio Greto ◽  
Marco Cipriani ◽  
...  
Keyword(s):  
Management System ◽  
Condition Index ◽  
Pavement Management ◽  
Pavement Management System ◽  
Pavement Condition ◽  
Airport Pavement ◽  
Maintenance And Rehabilitation ◽  
Pavement Condition Index ◽  
Rotary Wing ◽  
Economic Comparison

Maintenance and rehabilitation (M&R) scheduling for airport pavement is supported by the scientific literature, while a specific tool for heliport pavements lacks. A heliport pavement management system (HPMS) allows the infrastructure manager to obtain benefits in technical and economic terms, as well as safety and efficiency, during the analyzed period. Structure and rationale of the APSM could be replicated and simplified to implement a HPMS because movements of rotary-wing aircrafts have less complexity than fixed-wing ones and have lower mechanical effects on the pavement. In this study, an innovative pavement condition index-based HPMS has been proposed and implemented to rigid and flexible surfaces of the airport of Vergiate (province of Varese, Italy), and two twenty-year M&R plans have been developed, where the results from reactive and proactive approaches have been compared to identify the best strategy in terms of costs and pavement level of service. The result obtained shows that although the loads and traffic of rotary-wing aircrafts are limited, the adoption of PMS is also necessary in the heliport environment.

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