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The traffic assignment problem : models and methods
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- Part 1 Models: urban traffic planning - the transportation planning process, organization and goal definition, base-year inventory, model analysis, travel forecast, network evaluation, discussion
- the basic equilibrium model and extensions - the Wardrop conditions, the mathematical program for user equilibrium, properties of equilibrium solutions, user equilibrium versus system optimum, non-separable costs and multiclass-user transportation networks, related network problems, discussion, some extentions
- general traffic equilibrium models - traffic equilibrium models, properties of equilibrium solutions. Part 2 Methods: algorithms for the basic model and its extensions - the Frank-Wolfe algorithm and its extensions, algorithm concepts, algorithms for the basic model, algorithms for elastic demand problems, algorithms for stochastic assignment models, algorithms for side-constrained assignment models, discussion
- algorithms for general traffic equilibria - algorithm concepts, algorithms for general traffic equilibria, discussion.
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The Traffic Assignment Problem: Models and Methods PDF
This monograph provides both a unified account of the development of models and methods for the problem of estimating equilibrium traffic flows in urban areas and a survey of the scope and limitations of present traffic models. The development is described and analyzed by the use of the powerful instruments of nonlinear optimization and mathematical programming within the field of operations research. The first part is devoted to mathematical models for the analysis of transportation network equilibria; the second deals with methods for traffic equilibrium problems. This title will interest readers wishing to extend their knowledge of equilibrium modeling and analysis and of the foundations of efficient optimization methods adapted for the solution of large-scale models. In addition to its value to researchers, the treatment is suitable for advanced graduate courses in transportation, operations research, and quantitative economics....
Chapter List (116 chapters):
- Chapter 1: Cover
- Chapter 2: Title Page
- Chapter 3: Copyright Page
- Chapter 4: Table of Contents
- Chapter 5: Preface
- Chapter 6: Some notations
- Chapter 7: I Models
- Chapter 8: 1 Urban traffic planning
- Chapter 9: 1.1 Introduction
- Chapter 10: 1.2 The transportation planning process
- Chapter 11: 1.3 Organization and goal definition
- Chapter 12: 1.4 Base year inventory
- Chapter 13: 1.5 Model analysis
- Chapter 14: 1.5.1 Trip generation
- Chapter 15: 1.5.2 Trip distribution
- Chapter 16: 1.5.3 Modal split
- Chapter 17: 1.5.4 Traffic assignment
- Chapter 18: 1.6 Travel forecast
- Chapter 19: 1.7 Network evaluation
- Chapter 20: 1.8 Discussion
- Chapter 21: 2 The basic equilibrium model and extensions
- Chapter 22: 2.1 The Wardrop conditions
- Chapter 23: 2.1.1 The fixed demand case
- Chapter 24: 2.1.2 The variable demand case
- Chapter 25: 2.1.3 Discussion
- Chapter 26: 2.2 The mathematical program for user equilibrium
- Chapter 27: 2.2.1 The fixed demand case
- Chapter 28: 2.2.2 Network representations
- Chapter 29: 2.2.3 The elastic demand case
- Chapter 30: 2.2.4 Equivalent fixed demand reformulations
- Chapter 31: 2.2.5 Discussion
- Chapter 32: 2.3 Properties of equilibrium solutions
- Chapter 33: 2.3.1 Existence of equilibrium solutions
- Chapter 34: 2.3.2 Uniqueness of equilibrium solutions
- Chapter 35: 2.3.3 Further properties of equilibrium solutions
- Chapter 36: 2.3.4 Stability and sensitivity of equilibrium solutions
- Chapter 37: 2.4 User equilibrium versus system optimum
- Chapter 38: 2.5 Nonseparable costs and multiclass-user transportation networks
- Chapter 39: 2.6 Related network problem
- Chapter 40: 2.6.1 Traffic equilibria and network games
- Chapter 41: 2.6.2 Discrete traffic equilibrium models
- Chapter 42: 2.6.3 Traffic equilibria and electrical networks
- Chapter 43: 2.6.4 Spatial price equilibria
- Chapter 44: 2.6.5 Optimal message routing in computer communication networks
- Chapter 45: 2.7 Discussion
- Chapter 46: 2.8 Some extension
- Chapter 47: 2.8.1 Stochastic assignment models
- Chapter 48: 2.8.2 Side constrained assignment models
- Chapter 49: 3 General traffic equilibrium models
- Chapter 50: 3.1 Introduction
- Chapter 51: 3.1.1 Alternative definitions of equilibria
- Chapter 52: 3.1.2 Variational inequality problems
- Chapter 53: 3.1.3 Nonlinear complementarity problems
- Chapter 54: 3.1.4 Fixed point problems
- Chapter 55: 3.1.5 Mathematical programming reformulations
- Chapter 56: 3.2 Traffic equilibrium models
- Chapter 57: 3.2.1 Variational inequality models
- Chapter 58: 3.2.2 Nonlinear complementarity models
- Chapter 59: 3.2.3 Fixed point models
- Chapter 60: 3.3 Properties of equilibrium solutions
- Chapter 61: 3.3.1 Existence of equilibrium solutions
- Chapter 62: 3.3.2 Uniqueness of equilibrium solutions
- Chapter 63: 3.3.3 Further properties of equilibrium solutions
- Chapter 64: 3.3.4 Stability and sensitivity of equilibrium solutions
- Chapter 65: II Methods
- Chapter 66: 4 Algorithms for the basic model and its extensions
- Chapter 67: 4.1 The Frank-Wolfe algorithm and its extensions
- Chapter 68: 4.1.1 The Frank-Wolfe algorithm
- Chapter 69: 4.1.2 Termination criteria
- Chapter 70: 4.1.3 The use of the Frank-Wolfe approach for the solution of [TAP] .
- Chapter 71: 4.1.4 Shortest route algorithms
- Chapter 72: 4.1.5 Convergence characteristics of the Frank-Wolfe method
- Chapter 73: 4.1.6 Improvements and extensions
- Chapter 74: 4.2 Algorithm concepts
- Chapter 75: 4.2.1 Partial linearization algorithms
- Chapter 76: 4.2.2 Decomposition algorithms
- Chapter 77: 4.2.3 Column generation algorithms
- Chapter 78: 4.2.4 Discussion
- Chapter 79: 4.2.5 A taxonomy of algorithms for [TAP]
- Chapter 80: 4.3 Algorithms for the basic model
- Chapter 81: 4.3.1 Decomposition algorithms
- Chapter 82: 4.3.2 Sequential decomposition algorithms
- Chapter 83: 4.3.3 Parallel decomposition algorithms
- Chapter 84: 4.3.4 Aggregate simplicial decomposition algorithms
- Chapter 85: 4.3.5 Disaggregate simplicial decomposition algorithms
- Chapter 86: 4.3.6 Comparisons between aggregated and disaggregated representations
- Chapter 87: 4.3.7 Dual algorithms
- Chapter 88: 4.3.8 Network aggregation algorithms
- Chapter 89: 4.3.9 Other algorithms
- Chapter 90: 4.4 Algorithms for elastic demand problems
- Chapter 91: 4.5 Algorithms for stochastic assignment models
- Chapter 92: 4.5.1 Stochastic network loading
- Chapter 93: 4.5.2 Stochastic user equilibrium
- Chapter 94: 4.6 Algorithms for side constrained assignment models
- Chapter 95: 4.6.1 Algorithms for capacity side constrained assignment models
- Chapter 96: 4.7 Discussion
- Chapter 97: 5 Algorithms for general traffic equilibria
- Chapter 98: 5.1 Introduction
- Chapter 99: 5.2 Algorithm concepts
- Chapter 100: 5.2.1 Cost approximation algorithms
- Chapter 101: 5.2.2 Decomposition algorithms
- Chapter 102: 5.2.3 Column generation algorithms
- Chapter 103: 5.2.4 Algorithmic equivalence results
- Chapter 104: 5.2.5 Descent algorithms for variational inequalities
- Chapter 105: 5.3 Algorithms for general traffic equilibria
- Chapter 106: 5.3.1 Linear approximation algorithms
- Chapter 107: 5.3.2 Sequential decomposition algorithms
- Chapter 108: 5.3.3 Parallel decomposition algorithms
- Chapter 109: 5.3.4 Algorithms based on the primal and dual gap functions
- Chapter 110: 5.3.5 Column generation algorithms
- Chapter 111: 5.3.6 Dual algorithms
- Chapter 112: 5.3.7 Other algorithms
- Chapter 113: 5.4 Discussion
- Chapter 114: A Definitions
- Chapter 115: References
- Chapter 116: Index
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Traffic Assignments to Transportation Networks
- First Online: 01 January 2014
Cite this chapter
- Dietmar P. F. Möller 3
Part of the book series: Simulation Foundations, Methods and Applications ((SFMA))
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This chapter begins with a brief overview of traffic assignment in transportation systems. Section 3.1 introduces the assignment problem in transportation as the distribution of traffic in a network considering the demand between locations and the transport supply of the network. Four trip assignment models relevant to transportation are presented and characterized. Section 3.2 covers traffic assignment to uncongested networks based on the assumption that cost does not depend on traffic flow. Section 3.3 introduces the topic of traffic assignment and congested models based on assumptions from traffic flow modeling, e.g., each vehicle is traveling at the legal velocity, v , and each vehicle driver is following the preceding vehicle at a legal safe velocity. Section 3.4 covers the important topic of equilibrium assignment which can be expressed by the so-called fixed-point models where origin to destination (O-D) demands are fixed, representing systems of nonlinear equations or variational inequalities. Equilibrium models are also used to predict traffic patterns in transportation networks that are subject to congestion phenomena. Section 3.5 presents the topic of multiclass assignment, which is based on the assumption that travel demand can be allocated as a number of distinct classes which share behavioral characteristics. In Sect. 3.6, dynamic traffic assignment is introduced which allows the simultaneous determination of a traveler’s choice of departure time and path. With this approach, phenomenon such as peak spreading in response to congestion dynamics or time-varying tolls can be directly analyzed. In Sect. 3.7, transportation network synthesis is introduced which focuses on the modification of a transportation road network to fit a required demand. Section 3.8 covers a case study involving a diverging diamond interchange (DDI), an interchange in which the two directions of traffic on a nonfreeway road cross to the opposite side on both sides of a freeway overpass. The DDI requires traffic on the freeway overpass (or underpass) to briefly drive on the opposite side of the road. Section 3.9 contains comprehensive questions from the transportation system area. A final section includes references and suggestions for further reading.
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References and Further Readings
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Möller, D.P.F. (2014). Traffic Assignments to Transportation Networks. In: Introduction to Transportation Analysis, Modeling and Simulation. Simulation Foundations, Methods and Applications. Springer, London. https://doi.org/10.1007/978-1-4471-5637-6_3
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IMAGES
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This paper proposes a coordinated pricing-and-routing scheme for truck drivers to efficiently route trucks into the network and improve the overall traffic conditions and provides personalized routing instructions based on drivers' individual routing preferences. Expand. 1.
Download The Traffic Assignment Problem: Models And Methods [PDF] Type: PDF. Size: 5.1MB. Download as PDFDownload as DOCXDownload as PPTX. Download Original PDF. This document was uploaded by user and they confirmed that they have the permission to shareit. If you are author or own the copyright of this book, please report to us by using this ...
About This Book. This monograph provides both a unified account of the development of models and methods for the problem of estimating equilibrium traffic flows in urban areas and a survey of the scope and limitations of present traffic models. The development is described and analyzed by the use of the powerful instruments of nonlinear ...
The Traffic Assignment Problem: Models and Methods. February 2015. Edition: Reprint of the original 1994 edition published in the series "Topics in Transportation" by VSP in 1994. Publisher: Dover ...
CHAPTER 10. TRAFFIC ASSIGNMENT NPTEL May 7, 2007 Di erentiate the above equation to zero, and solving for x1 and then x2 leads to the solution x1 = 5.3,x2= 6.7 which gives Z(x) = 327.55 10.6 Other assignment methods Let us discuss brie y some other assignments like incremental assignment, capacity restraint assignment,
The Traffic Assignment Problem: Models and Methods. Michael Patriksson. Courier Dover Publications, Feb 18, 2015 - Mathematics - 240 pages. This monograph provides both a unified account of the development of models and methods for the problem of estimating equilibrium traffic flows in urban areas and a survey of the scope and limitations of ...
The basic introduction to Dynamic Traffic Assignment (DTA) is provided in Sect. 2.1. Section 2.2 deals with the use of mathematical programming methodology for static traffic assignment. The user-equilibrium and system optimal formulations of the traffic assignment problem are discussed in the section.
The basic equilibrium model and extensions - the Wardrop conditions, the mathematical program for user equilibrium, properties of equilibrium solutions, user equilibrium versus system optimum, non-separable costs and multiclass-user transportation networks, related network problems, discussion. Part 1 Models: urban traffic planning - the transportation planning process, organization and goal ...
Publisher's summary. This work is the result of several years of research into the modelling and efficient solution of problems in transportation planning and related areas. It aims to provide a unified account of the development of models and methods for the problem of estimating equilibrium traffic flows in urban areas, as well as to show the ...
The Traffic Assignment Problem. : Michael Patriksson. Courier Dover Publications, Jan 19, 2015 - Mathematics - 240 pages. This monograph provides both a unified account of the development of models and methods for the problem of estimating equilibrium traffic flows in urban areas and a survey of the scope and limitations of present traffic models.
32 2 Traffic Assignment: A Survey of Mathematical Models and Techniques Fig. 2.4 Variational inequality( c 2013Springer; see note on chapter opening page for source citation) x∗ x f 2.3 Variational Inequality-Based Static Traffic Assignment Model Variational inequality formulation for traffic equilibrium has been used as it gen-
This paper presents a survey of the mathematical methods used for modeling and solutions for the traffic assignment problem. It covers the static (steady-state) traffic assignment techniques as well as dynamic traffic assignment in lumped parameter and distributed parameter settings. Moreover, it also surveys simulation-based solutions.
The class of traffic assignment problem tries to model these behaviour. Therefore, the traffic assignment will be discussed before adressing bi-level formulation of the network design problems. 2 Traffic assignment The process of allocating given set of trip interchanges to the specified transportation system is usually refered to as traffic ...
Summary. This monograph provides both a unified account of the development of models and methods for the problem of estimating equilibrium traffic flows in urban areas and a survey of the scope and limitations of present traffic models. The development is described and analyzed by the use of the powerful instruments of nonlinear optimization ...
The Traffic Assignment Problem - Models and Methods. Michael Patriksson. Taylor & Francis, Oct 1, 1994 - Technology & Engineering - 222 pages. From inside the book . Contents. ... The Traffic Assignment Problem: Models and Methods Michael Patriksson Limited preview - 2015. The Traffic Assignment Problem - Models and Methods ...
The computational performance of five algorithms for the traffic assignment problem (TAP) is compared with that of mid- to large-scale randomly generated grid networks. The applied procedures include the Frank-Wolfe, PARTAN, gradient projection, restricted simplicial decomposition, and disaggregate simplicial decomposition algorithms.
This class of problems, known as the Traffic Assignment Problem (TAP), was first formulated by Dafermos and Sparrow [7] and has a number of known mathematical programs for solving variations of the fixed demand problem (where the number of cars being transported from an origin to destination is fixed) [15]. We present a closely related ...
The cost of using a link and a junction, usual ly in the form of travel times and delays, is a key item of prediction in the . assignment process. A number of methods have been developed for undertaking traffic assignment: (1) All-or-nothing assignment. (2) Assignment by the use of diversion curves.
The critical difficulty in solving the capacitated traffic assignment problem (CTAP) is that the subproblem becomes a multi-commodity minimum cost flow problem, whose computation is considerably more expensive than the shortest path problem. ... applied the IPF method to deal with traffic assignment as well as signal control in a general ...
Inouye's method is commonly known as the inner penalty function (IPF) method, or Barrier method as Luenberger puts it (1973). Yang and Yagar (1994) applied the IPF method to deal with traffic assignment as well as signal control in a general freeway-arterial corridor system.
A discrete time model is presented for dynamic traffice assignment with a single destination. Congestion is treated explicitly in the flow equations. The model is a nonlinear and nonconvex mathematical programming problem. A piecewise linear version of the model, with additional assumptions on the objective function, can be solved for a global ...
The standard traffic assignment problem (TAP) is often augmented with additional constraints to address non-standard applications. These models are called TAP with side constraints (TAPSC). Despite the rising significance of TAPSC models, the ability to efficiently solve them to satisfactory precision remains limited in real-world applications.
Section 3.1 introduces the assignment problem in transportation as the distribution of traffic in a network considering the demand between locations and the transport supply of the network. Four trip assignment models relevant to transportation are presented and characterized. Section 3.2 covers traffic assignment to uncongested networks based ...
In the aspect of VI, researchers use link/path variables to address the UE-TAPED on a small network. Dafermos and Sparrow (1969) were the first to propose the link-based deterministic user equilibrium model with elastic demand (DUE-TAPED). Hearn and Yildirim (2002) later introduced the path-based DUE-TAPED model and tested it on a small network. Wu and Lam (2003) further extended the combined ...