Download or read book Artificial Intelligence In Highway Location And Alignment Optimization Applications Of Genetic Algorithms In Searching Evaluating And Optimizing Highway Location And Alignments written by Min-wook Kang and published by World Scientific. This book was released on 2020-08-14 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph provides a comprehensive overview of methods for searching, evaluating, and optimizing highway location and alignments using genetic algorithms (GAs), a powerful Artificial Intelligence (AI) technique. It presents a two-level programming structure to deal with the effects of varying highway location on traffic level changes in surrounding road networks within the highway location search and alignment optimization process. In addition, the proposed method evaluates environmental impacts as well as all relevant highway costs associated with its construction, operation, and maintenance. The monograph first covers various search methods, relevant cost functions, constraints, computational efficiency, and solution quality issues arising from optimizing the highway alignment optimization (HAO) problem. It then focuses on applications of a special-purpose GA in the HAO problem where numerous highway alignments are generated and evaluated, and finally the best ones are selected based on costs, traffic impacts, safety, energy, and environmental considerations. A review of other promising optimization methods for the HAO problem is also provided in this monograph.
Download or read book Optimizing Highway Alignments with Genetic Algorithms written by Jyh-Cherng Jong and published by . This book was released on 2000 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multi objective Highway Alignment Optimization written by Avijit Maji and published by . This book was released on 2008 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highway alignment optimization algorithms available at present use the total cost as the objective function. The travel time cost, vehicle operating cost, accident cost, earthwork cost, land acquisition cost, and pavement and construction costs are the basic components of the total cost. This is a single-objective optimization approach and it has limited capability in considering cost component with different units. This approach uses the information of environmental impact, socioeconomic impact, impacts on historic sites and other sensitive areas in the total cost by transforming them to monetary values. It has limitation in yielding a set of alternatives with different level of trade-off among the objective values. Moreover, this process cannot yield a set of alternative solutions from a single execution of the method. The dissertation presents a multi-objective approach to overcome these shortcomings. Analyzing different cost components and objectives for highway alignment optimization, it is observed that depending on the study area, some of the obtained alignments may be conflicting in nature, i.e., minimizing one cost component or objective value may yield an alignment with higher cost component or objective values. This leads to the study of the alternatives that might be obtained by trade-off among different cost components and other objective values. The multi-objective optimization has the potential to yield a set of alternatives with trade-off option. Generally, a Pareto-optimal front is designed to examine the trade-offs among two different objectives. In the available highway alignment optimization approach, Points of Intersections (PIs) are considered as the decision variables. The highway alignment objectives depend on factors such as traffic growth, study area, and economic indices, which makes it difficult to represent them as an explicit function of the desired decision variables. To add to the complexity, the cost components and objectives are not continuous within the search space. Available multi-objective optimization algorithms do not address this issue. Therefore, there is a need to develop a multi-objective optimization algorithm that can efficiently and effectively optimize problems such as highway alignment optimization. In this research, Genetic Algorithm (GA) based multi-objective optimization algorithms are specially developed for highway alignment design and optimization. This will have the capability to yield a set of trade-off alternatives. Mathematical formulations are developed to estimate the non-monetary objective values. The efficiency of generation of alternatives depends on the genetic algorithm reproduction operators. A special set of reproduction operators are also developed for this research work. All these formulation and estimation processes are computer coded in C and Avenue to obtain the alternatives. Effectiveness of the developed methodology is ensured by application of the multi-objective highway alignment optimization model to problems with discrete search domain and objective functions with indirect decision variables. Also, the developed model has the ability to converge to a Pareto-optimal front for two objectives. The trade-offs among individual objectives and cost components are analyzed through extensive sensitivity analysis. The Pareto-optimal front is a tool to graphically represent trade-offs for two objectives, but fails for more than two objectives. Therefore, effective representation of multi-objectives will also be pursued in this research work. -- Abstract.
Download or read book Intelligent Road Design written by M. K. Jha and published by WIT Press. This book was released on 2006 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing the intelligent concepts of the ancient endeavour of road design, this book discusses how a road alignment optimization model can be developed and applied in real case studies. Based on research in intelligent road design and alignment optimization, it is suitable for road planners, designers, senior undergraduate and graduate students.
Download or read book Transport Infrastructure and Systems written by Gianluca Dell'Acqua and published by CRC Press. This book was released on 2017-03-16 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport Infrastructure Asset management in transport infrastructure, financial viability of transport engineering projects/ Life cycle Cost Analysis, Life-Cycle Assessment and Sustainability Assessment of transport infrastructure/ Infrastructures financing and pricing with equity appraisal, operation optimization and energy management/ Low-Volume roads: planning, maintenance, operations, environmental and social issues/ Public-Private Partnership (PPP) experience in transport infrastructure in different countries and economic conditions/ Airport Pavement Management Systems, runway design and maintenance/ Port maintenance and development issues, technology relating to cargo handling, landside access, cruise operations/ Infrastructure Building Information Modelling (I-BIM) / Pavement design and innovative bituminous materials/ Recycling and re-use in road pavements, environmentally sustainable technologies/ Stone pavements, ancient roads and historic railways/ Cementitious stabilization of materials used in the rehabilitation of transportation infrastructure. Transport Systems Sustainable transport and the environment protection including green vehicles/ Urban transport, land use development, spatial and transport planning/ Bicycling, bike, bike-sharing systems, cycling mobility/ Human factor in transport systems/ Intelligent Mobility: emerging technologies to enable the smarter movement of people and goods/Airport landside: access roads, parking facilities, terminal facilities, aircraft apron and the azdjacent taxiway/ Transportation policy, planning and design, modelling and decision making/ Transport economics, finance and pricing issues, optimization problems, equity appraisal/ Road safety impact assessments, road safety audits, the management of road network safety and safety inspections/ Tunnels and underground structures: preventing incidents-accidents mitigating their effects for both people and goods/ Traffic flow characteristics, traffic control devices, work zone traffic control, highway capacity and quality of service/ Track-vehicle interactions in railway systems, capacity analysis of railway networks/ Risk assessment and safety in air and railway transport, reliability aspects/ Maritime transport and inland waterways transport research/ Intermodal freight transport: terminals and logistics.
Download or read book Recent Advances in Transportation Systems Engineering and Management written by M. V. L. R. Anjaneyulu and published by Springer Nature. This book was released on 2022-11-10 with total page 903 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the select proceedings of the 8th International Conference on Transportation Systems Engineering and Management (CTSEM 2021). The book covers topics pertaining to three broad areas of transportation engineering, namely Transportation Planning, Traffic Engineering and Pavement Technology. The topics covered include transportation and land use, urban and regional transportation planning, travel behavior modeling, travel demand analysis, forecasting and management, transportation and ICT, public transport planning and management, freight transport, traffic flow modeling and management, highway design and maintenance, capacity and level of service, traffic crashes and safety, ITS and applications, non-motorized transportation, transportation economics and policy, road and parking pricing, pedestrian facilities and safety, road asset management, pavement materials and characterization, pavement design and construction, pavement evaluation and management, transportation infrastructure financing, innovative trends in transportation systems, sustainable transportation, smart cities, resilience of transportation systems and environmental and ecological aspects. This book will be useful for the students, researchers and the professionals in the area of civil engineering, especially transportation and traffic engineering.
Download or read book Optimizing Innovating and Capitalizing on Information Systems for Operations written by Wang, John and published by IGI Global. This book was released on 2013-02-28 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adapting the development of information systems for operations management is essential for the effectiveness of an organizations business strategy. Optimizing, Innovating, and Capitalizing on Information Systems for Operations presents research on the applications of information systems and its influence on business and operations management. Highlighting case studies, frameworks and methodologies, this book aims to be useful for practitioners and academics in the fields of decision, management, and social sciences.
Download or read book Models and Algorithms for a Rail Transit Line Alignment Using GIS and Genetic Algorithm written by Sutapa Samanta and published by . This book was released on 2008 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increase in commuting populations and transit ridership in urban areas has given rise to the need for building new transit lines or extending existing ones. The objective of this dissertation research is to perform a microscopic analysis and develop models and algorithms for a rail transit alignment using Geographical Information System (GIS) and Genetic Algorithm (GA) in a given study corridor. Previous research suggests that several analytical methods have been developed to design various components of a transit system, such as optimization of station spacings, route spacing, and route length for rail transit alignments. While all this research has contributed substantially towards the development of a transit system, the applicability of these theoretical models remains limited for real-world problems. The present research aims to perform a microscopic analysis in a given study corridor to obtain the locations and sequence of stations considering many-to-one travel pattern, variable demand for transit, identification of feasible locations for stations and optimization of various objective functions for station locations for an optimal rail transit alignment through GIS-GA integration. An optimization algorithm is developed for optimizing station locations for three types of rail transit systems, namely (1) an on-the-ground rail transit system; (2) an underground cut and cover rail transit system, and (3) an underground deep tunnel rail transit system. The algorithm is developed in two stages. In the first stage, the search space is defined by identifying the potential station locations using a GIS and in the second stage a GA is applied to perform the optimal search. The optimization model for station location is developed using several objective functions of demand and cost as both influence the optimal rail transit alignment. The first objective is to minimize the total system cost per person, which is a function of user cost, operator cost, location cost and variable demand. A bilevel optimization model is introduced for the station location optimization problem. In this model a number of clusters of riders are determined from local population data at the lower level in order to estimate demand and optimize the objective functions at the upper level. The second objective is to maximize the ridership or the service coverage. The user cost per person is minimized separately as the third objective because the user cost is one of the most important decision-making factors for using the transit system. A decision can be made based on the preferred parameters by a transit-planner based on the results obtained using different objective functions. A variable demand case is considered in the research which replicates a realistic scenario that can be expected while planning a rail transit line Optimal solutions are obtained by running an iterative process of re-estimating the variable transit demand by varying the locations and sequence of stations, which results in change in travel time and potential transit demand. Once the optimal station locations are obtained, the stations are interconnected using a suitable rail line alignment. This is done by connecting each pair of stations using a GIS and GA based algorithm (customized Highway Alignment Optimization model). The proposed model is applied on an artificially generated study area of size 20 miles x 20 miles around Washington DC in USA. The efficiency of the proposed algorithm is verified on small scale examples first. Then the model is applied on radial corridors of 12 miles x 3 miles and a diagonal corridor of area 22 mile x 3 mile within the study area to obtain optimal rail transit alignments. The results show that a new rail line alignment can be established in a comprehensive, consecutive and automated process using the proposed model. Better results are obtained for radial corridors than for the diagonal corridor as many-to-one travel pattern is considered for the study. The iterative approach in the algorithm increases computational complexities but produces near optimal solution for a rail transit alignment. The results give a planner an initial idea about which objective functions to use for a specific type of study corridor under consideration. -- Abstract.
Download or read book Meta heuristic Optimization Techniques written by Anuj Kumar and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-01-19 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offer a thorough overview of the most popular and researched meta-heuristic optimization techniques and nature inspired algorithms. Their wide applicability makes them a hot research topic and an efficient tool for the solution of complex optimization problems in various field of sciences, engineering and in numerous industries.
Download or read book Sustainable Rail Transport written by Marin Marinov and published by Springer. This book was released on 2019-07-24 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a collection of rail orientated research articles, covering a variety of topics on rail operations research and management of rail systems as well as innovation, particularly focusing on sustainability aspects. The material consists of the most recent research work of the authors. The authorship is international, which makes it an interesting read for rail academics and professionals around the world. Although the material has a rail research focus the material is also excellent for preparation and delivery of rail, transport and logistics orientated courses and programmes. The target audience primarily comprises research experts in transport research, but the book may also be beneficial for graduate students alike.
Download or read book An Approach to the Highway Alignment Development Process Using Genetic Algorithm Based Optimisation written by Botan Ahmad Al-Hadad and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Highway alignment development is recognised as a non-linear constrained optimisation problem. It is affected by many economical, social, and environmental factors subject to many design constraints. The highway alignment development process is therefore considered complex but very important. Highway alignment development is about finding an optimum alignment solution between two termini points in a 3D space, subject to several constraints. The development process using the current method is considered complex because of the number of the design elements involved, their interactions, and the formulations required to relate them to a realistic highway alignment. Moreover, it is considered that an alignment, generated using the existing method, results in a sub-optimal solution. This is due to the fact that the two alignments (horizontal and vertical alignments) are found in two independent stages and from only a handful number of alternative evaluations. This research reports on a new approach for improving the process of highway alignment development by utilising modern technologies. It proposes a novel design approach, as an alternative to the existing method, for highway alignment development in a three-dimensional space (considering the horizontal and vertical alignments simultaneously). It describes a method for highway alignment development through station points. Station points, as points along the centre line of alignment which are defined by their X, Y, and Z coordinates, are used to define the alignment configuration. The research also considers the implications of access provision (in term of junctions) and their locations on highway alignment. The environmental factors (noise and air pollution in terms of proximity distance) and accessibility (user and link construction costs in terms of access costs) are embedded in the formulations required to represent junctions in the model. The proposed approach was tested through the development of a genetic algorithms based optimisation model. To achieve this, several algorithms were developed to perform the search. The evaluation of the solutions was handled by a fitness function that includes construction (length), location (land acquisition, environmentally sensitive areas, and soil condition), and earthwork (fill and cut material) dependent costs. Other forms of costs that are quantifiable can also be incorporated within the fitness function. The critical constraints, believed important for realistic alignments (horizontal curvature, vertical curvature, and maximum gradient) are also dealt with within the model formulation. The experimental results show that the problem of highway alignment can be better represented using the concept of station points, by which better alignment solutions (global or near global solutions) were achieved. It was also shown that the alignment development process could be simplified through the use of station points, resulting in the efficient evaluation of more alternatives. Furthermore, the results conclude that a highway alignment cannot be optimum unless it is simultaneously optimised with junctions. Further investigations and development are also recommended for future studies.
Download or read book Transportation Research written by Tom V. Mathew and published by Springer Nature. This book was released on 2019-10-24 with total page 905 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected papers from the 4th Conference of the Transportation Research Group of India. It provides a comprehensive analysis of themes spanning the field of transportation encompassing economics, financial management, social equity, green technologies, operations research, big data analysis, econometrics and structural mechanics. This volume will be of interest to researchers, educators, practitioners, managers, and policy-makers world-wide.
Download or read book Urban Transport XXIII written by C.A. Brebbia and published by WIT Press. This book was released on 2017-12-11 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forming the 23rd addition to a successful series, this book contains papers presented by an extensive selection of international delegates at the 23rd International Conference on Urban Transport and the Environment. Due to its continued success and multiplicity of topics, the series is considered to be a leading source of new research in the area of transport engineering. Transportation in urban areas, with its related environmental and social impacts, is of significant concern for government policymakers and for the urban citizens who need efficient transport systems. Extensive reviews of these systems are required to devise and then safeguard their operational use, maintenance, safety and security. The continuing requirement for better and more efficient urban transport systems and the need for a healthier environment has added to the increasing international desire for new technologies and developments in this essential field. The variety of topics covered reflects the complex interaction of urban transport systems with their environment and the need to establish integrated strategies. These topics include: Public transport systems; Urban transport planning and management; Environmental impact; Economic and social impact; Safety and security; Transportation modelling and simulation; Intelligent and advanced transport systems; City logistics; Inter-modal transport systems; Mass transport strategies; Freight transport; Railway systems; Port and city; Mobility and public space; Innovative electric transportation; Eco-mobility transport systems; Integrated network systems; Traditional and alternative fuels and energy; Public policies and governance.
Download or read book Engineering and Applied Sciences Optimization written by Nikos D. Lagaros and published by Springer. This book was released on 2015-05-22 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chapters which appear in this volume are selected studies presented at the First International Conference on Engineering and Applied Sciences Optimization (OPT-i), Kos, Greece, 4-6 June 2014 and works written by friends, former colleagues and students of the late Professor M. G. Karlaftis; all in the area of optimization that he loved and published so much in himself. The subject areas represented here range from structural optimization, logistics, transportation, traffic and telecommunication networks to operational research, metaheuristics, multidisciplinary and multiphysics design optimization, etc. This volume is dedicated to the life and the memory of Professor Matthew G. Karlaftis, who passed away a few hours before he was to give the opening speech at OPT-i. All contributions reflect the warmth and genuine friendship which he enjoyed from his associates and show how much his scientific contribution has been appreciated. He will be greatly missed and it is hoped that this volume will be received as a suitable memorial to his life and achievements.
Download or read book Metaheuristics in Water Geotechnical and Transport Engineering written by Xin-She Yang and published by Newnes. This book was released on 2012-09 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to an ever-decreasing supply in raw materials and stringent constraints on conventional energy sources, demand for lightweight, efficient and low cost structures has become crucially important in modern engineering design. This requires engineers to search for optimal and robust design options to address design problems that are often large in scale and highly nonlinear, making finding solutions challenging. In the past two decades, metaheuristic algorithms have shown promising power, efficiency and versatility in solving these difficult optimization problems. This book examines the latest developments of metaheuristics and their applications in water, geotechnical and transport engineering offering practical case studies as examples to demonstrate real world applications. Topics cover a range of areas within engineering, including reviews of optimization algorithms, artificial intelligence, cuckoo search, genetic programming, neural networks, multivariate adaptive regression, swarm intelligence, genetic algorithms, ant colony optimization, evolutionary multiobjective optimization with diverse applications in engineering such as behavior of materials, geotechnical design, flood control, water distribution and signal networks. This book can serve as a supplementary text for design courses and computation in engineering as well as a reference for researchers and engineers in metaheursitics, optimization in civil engineering and computational intelligence. Provides detailed descriptions of all major metaheuristic algorithms with a focus on practical implementation Develops new hybrid and advanced methods suitable for civil engineering problems at all levels Appropriate for researchers and advanced students to help to develop their work
Download or read book Transportation Systems and Engineering Concepts Methodologies Tools and Applications written by Management Association, Information Resources and published by IGI Global. This book was released on 2015-06-30 with total page 1735 pages. Available in PDF, EPUB and Kindle. Book excerpt: From driverless cars to vehicular networks, recent technological advances are being employed to increase road safety and improve driver satisfaction. As with any newly developed technology, researchers must take care to address all concerns, limitations, and dangers before widespread public adoption. Transportation Systems and Engineering: Concepts, Methodologies, Tools, and Applications addresses current trends in transportation technologies, such as smart cars, green technologies, and infrastructure development. This multivolume book is a critical reference source for engineers, computer scientists, transportation authorities, students, and practitioners in the field of transportation systems management.
Download or read book Numerical Optimization of Highway Alignments written by Joanes Goicoechea Montes and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The selection of highway alternatives is a very complex and challenging problem due to the large number of conflicting factors that must be solved, the great amount and variety of information that must be compiled and processed, and the numerous evaluations that must be performed. Therefore, the motivation of this Master's Thesis research has been to automate the design process and to achieve better results within a shorter timeframe and at a lower cost, to overcome the limitations of the traditional highway alignment alternative evaluation processes and design. For that aim, this thesis presents a highway three-dimensional alignment optimization model that simultaneously develops the optimization of horizontal and vertical alignments along a corridor. It integrates a two-stage heuristic neighbourhood optimization algorithm. The research discusses which are the most important costs and constraints associated with highway alignment optimization, it develops the key steps of the two-stage optimization algorithm and it provides a first degree attempt to develop an optimization model software with Matlab interface that might highly automate the design process in the future. Finally, the model capabilities and applicability are studied applying the optimization model in a real highway construction project case study. Thanks to the application of the model to a real case study, it has been demonstrated that the optimization model provides an effective highway alignment alternative, which satisfies the design constraints and also provides practical information about the optimized alignment. It is also found that the alignment optimized by the model is quite similar to the obtained through conventional manual methods, but the model can greatly reduce the time required (13 hours) for highway planning and design, as well as produce a lower cost solution. Despite the terrain complexity of the study area, the optimized alignment is found without any difficulties. In the studied highway stretch the project alignment total cost (6 226 610 €) is close to the optimized final highway alignment total cost (6 136 872 €), but it definitely contributes to reduce the cost in 89 738 € (-1.4%). As summary of the research, the proposed optimization model can greatly contribute to the productivity of highway engineers, as well as to the quality of the resulting infrastructure. It is concluded that with the implemented heuristic algorithm the optimization model achieves a locally optimal horizontal alignment (inside the corridor) and a vertical alignment that is globally optimal for the very alignment it analysed, meeting the main geometric constraints.
