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Travel Demand Modeling Based On Cellular Probe Data
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Book Synopsis Travel Demand Modeling Based on Cellular Probe Data by :
Download or read book Travel Demand Modeling Based on Cellular Probe Data written by and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive travel demand modeling methodology using cellular probe data is presented in this thesis, which includes a static daily O-D estimation model, a mode share estimation model and a dynamic (time-dependent) O-D estimation model. At first, the cellular probe trajectories are obtained by recording all the signal-transition events of cellular probes to determine the trip origins and destinations. The ownership of cell phone was treated as a conditional probability depending on users' socio-economic factors available in the census data such as age, race, household income, etc. Thereinafter, the traveling population daily O-D demand was estimated via a robust Horvitz-Thompson estimator. The methodology was tested via a VISSIM simulation and results were compared with a conventional simple random sampling (SRS) method. The comparison outcome shows great potential of using cellular probe data as a means to estimating O-D travel demand. The mode share estimation model consists of two major parts: offline learning and online inference. The offline learning extracts the temporal and speed features from the cellular probe trajectories. The model parameters are calibrated through the offline learning process. The online inference determines the transportation mode for individual cell phone user in a real-time manner. The methodology was tested via a VISSIM based simulation and a case study designed for both the offline learning and online inference parts. The results show the great potential of using the information of cellular probe trajectories as a means to estimating the transportation mode shares. A Kalman filter based dynamic O-D estimation and prediction model is also proposed. Not like the traditional Kalman filter based O-D estimation method, in which the link traffic counts and the link traffic assignment matrix are mostly taken into consideration in the observation equation, this method utilizes the cellular probe counts crossing the cell boundaries as the observed variables and derives an assignment matrix which assigns the cellular probe counts to subsets of the links - those links covered by the cell boundaries. By conducting the simulation and field experiments, it is observed that the model is a feasible means to estimate and predict the dynamic O-D matrix.
Book Synopsis Innovations in Travel Demand Modeling: Session summaries by :
Download or read book Innovations in Travel Demand Modeling: Session summaries written by and published by Transportation Research Board. This book was released on 2008 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 31 individual authored papers from the breakout sessions are contained in Volume 2"--Pub. desc.
Book Synopsis Travel Demand Forecasting: Parameters and Techniques by :
Download or read book Travel Demand Forecasting: Parameters and Techniques written by and published by Transportation Research Board. This book was released on 2012 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB’s National Cooperative Highway Research Program (NCHRP) Report 716: Travel Demand Forecasting: Parameters and Techniques provides guidelines on travel demand forecasting procedures and their application for helping to solve common transportation problems.
Book Synopsis Advances in Traffic Transportation and Civil Architecture by : Run Liu
Download or read book Advances in Traffic Transportation and Civil Architecture written by Run Liu and published by CRC Press. This book was released on 2023-06-05 with total page 1310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Traffic Transportation and Civil Architecture focuses on the research of traffic infrastructure. This proceedings gathers the most cutting-edge research and achievements, aiming to provide scholars and engineers with a preferable research direction and engineering solutions as reference. Subjects in this proceedings include: - Road Engineering - Bridge Engineering - Tunneling - Construction Technology and Processes The works of this proceedings aim to promote the development of civil engineering and construction technology. Thereby, promote scientific information interchange between scholars from the top universities, research centers and high-tech enterprises working all around the world.
Download or read book Urban Informatics written by Wenzhong Shi and published by Springer Nature. This book was released on 2021-04-06 with total page 941 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book is the first to systematically introduce the principles of urban informatics and its application to every aspect of the city that involves its functioning, control, management, and future planning. It introduces new models and tools being developed to understand and implement these technologies that enable cities to function more efficiently – to become ‘smart’ and ‘sustainable’. The smart city has quickly emerged as computers have become ever smaller to the point where they can be embedded into the very fabric of the city, as well as being central to new ways in which the population can communicate and act. When cities are wired in this way, they have the potential to become sentient and responsive, generating massive streams of ‘big’ data in real time as well as providing immense opportunities for extracting new forms of urban data through crowdsourcing. This book offers a comprehensive review of the methods that form the core of urban informatics from various kinds of urban remote sensing to new approaches to machine learning and statistical modelling. It provides a detailed technical introduction to the wide array of tools information scientists need to develop the key urban analytics that are fundamental to learning about the smart city, and it outlines ways in which these tools can be used to inform design and policy so that cities can become more efficient with a greater concern for environment and equity.
Book Synopsis Recent Progress in Activity-Based Travel Demand Modeling by : Hai L. Vu
Download or read book Recent Progress in Activity-Based Travel Demand Modeling written by Hai L. Vu and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 30¬†years have passed since activity-based travel demand models (ABMs) emerged to overcome the limitations of the preceding models which have dominated the field for over 50¬†years. Activity-based models are valuable tools for transportation planning and analysis, detailing the tour and mode-restricted nature of the household and individual travel choices. Nevertheless, no single approach has emerged as a dominant method, and research continues to improve ABM features to make them more accurate, robust, and practical. This paper describes the state of art and practice, including the ongoing ABM research covering both demand and supply considerations. Despite the substantial developments, ABM,Äôs abilities in reflecting behavioral realism are still limited. Possible solutions to address this issue include increasing the inaccuracy of the primary data, improved integrity of ABMs across days of the week, and tackling the uncertainty via integrating demand and supply. Opportunities exist to test, the feasibility of spatial transferability of ABMs to new geographical contexts along with expanding the applicability of ABMs in transportation policy-making.
Book Synopsis Transport Analytics Based on Cellular Network Signalling Data by : David Gundlegård
Download or read book Transport Analytics Based on Cellular Network Signalling Data written by David Gundlegård and published by Linköping University Electronic Press. This book was released on 2018-11-19 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellular networks of today generate a massive amount of signalling data. A large part of this signalling is generated to handle the mobility of subscribers and contains location information that can be used to fundamentally change our understanding of mobility patterns. However, the location data available from standard interfaces in cellular networks is very sparse and an important research question is how this data can be processed in order to efficiently use it for traffic state estimation and traffic planning. In this thesis, the potentials and limitations of using this signalling data in the context of estimating the road network traffic state and understanding mobility patterns is analyzed. The thesis describes in detail the location data that is available from signalling messages in GSM, GPRS and UMTS networks, both when terminals are in idle mode and when engaged in a telephone call or a data session. The potential is evaluated empirically using signalling data and measurements generated by standard cellular phones. The data used for analysis of location estimation and route classification accuracy (Paper I-IV in the thesis) is collected using dedicated hardware and software for cellular network analysis as well as tailor-made Android applications. For evaluation of more advanced methods for travel time estimation, data from GPS devices located in Taxis is used in combination with data from fixed radar sensors observing point speed and flow on the road network (Paper V). To evaluate the potential in using cellular network signalling data for analysis of mobility patterns and transport planning, real data provided by a cellular network operator is used (Paper VI). The signalling data available in all three types of networks is useful to estimate several types of traffic data that can be used for traffic state estimation as well as traffic planning. However, the resolution in time and space largely depends on which type of data that is extracted from the network, which type of network that is used and how it is processed. The thesis proposes new methods based on integrated filtering and classification as well as data assimilation and fusion that allows measurement reports from the cellular network to be used for efficient route classification and estimation of travel times. The thesis also shows that participatory sensing based on GPS equipped smartphones is useful in estimating radio maps for fingerprint-based positioning as well as estimating mobility models for use in filtering of course trajectory data from cellular networks. For travel time estimation, it is shown that the CEP-67 location accuracy based on the proposed methods can be improved from 111 meters to 38 meters compared to standard fingerprinting methods. For route classification, it is shown that the problem can be solved efficiently for highway environments using basic classification methods. For urban environments the link precision and recall is improved from 0.5 and 0.7 for standard fingerprinting to 0.83 and 0.92 for the proposed method based on particle filtering with integrity monitoring and Hidden Markov Models. Furthermore, a processing pipeline for data driven network assignment is proposed for billing data to be used when inferring mobility patterns used for traffic planning in terms of OD matrices, route choice and coarse travel times. The results of the large-scale data set highlight the importance of the underlying processing pipeline for this type of analysis. However, they also show very good potential in using large data sets for identifying needs of infrastructure investment by filtering out relevant data over large time periods.
Book Synopsis A Disaggregate Travel Demand Model by : Martin Gomm Richards
Download or read book A Disaggregate Travel Demand Model written by Martin Gomm Richards and published by . This book was released on 1975 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Innovations in Travel Demand Modeling: Papers by :
Download or read book Innovations in Travel Demand Modeling: Papers written by and published by Transportation Research Board. This book was released on 2008 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 31 individual authored papers from the breakout sessions are contained in Volume 2"--Pub. desc.
Book Synopsis Activity-based Travel Demand Modeling for Metropolitan Areas in Texas by : Chandrasekhar R. Bhat
Download or read book Activity-based Travel Demand Modeling for Metropolitan Areas in Texas written by Chandrasekhar R. Bhat and published by . This book was released on 2002 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Travel Behavior Characteristics Analysis Technology Based on Mobile Phone Location Data by : Fei Yang
Download or read book Travel Behavior Characteristics Analysis Technology Based on Mobile Phone Location Data written by Fei Yang and published by Springer Nature. This book was released on 2022-03-19 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the technology and methodology of individual travel behavior analysis and refined travel information extraction. Traditional resident trip surveys are characterized by many shortcomings, such as subjective memory errors, difficulty in organization and high cost. Therefore, in this book, a set of refined extraction and analysis techniques for individual travel activities is proposed. It provides a solid foundation for the optimization and reconstruction of traffic theoretical models, urban traffic planning, management and decision-making. This book helps traffic engineering researchers, traffic engineering technicians and traffic industry managers understand the difficulties and challenges faced by transportation big data. Additionally, it helps them adapt to changes in traffic demand and the technological environment to achieve theoretical innovation and technological reform.
Book Synopsis CATS Daily Travel Demand Models by : Kermit Wies
Download or read book CATS Daily Travel Demand Models written by Kermit Wies and published by . This book was released on 1997 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Urban Travel Demand Modeling by : Norbert Oppenheim
Download or read book Urban Travel Demand Modeling written by Norbert Oppenheim and published by Wiley-Interscience. This book was released on 1995-02-06 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition, models for optimal transportation supply decisions are integrated with the demand models. Transit travel and goods movements are specifically addressed.
Book Synopsis Mobile Technologies for Activity-Travel Data Collection and Analysis by : Rasouli, Soora
Download or read book Mobile Technologies for Activity-Travel Data Collection and Analysis written by Rasouli, Soora and published by IGI Global. This book was released on 2014-06-30 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book concentrates on one particular and fast-growing application of mobile technologies: data acquisition for the tourism industry, providing travel agents, visitors, and hosts with the most advanced data mining methods, empirical research findings, and computational analysis techniques necessary to compete effectively in the global tourism industry"--Provided by publisher.
Book Synopsis Activity-based Travel Demand Models by : Joe Castiglione (Writer on transportation)
Download or read book Activity-based Travel Demand Models written by Joe Castiglione (Writer on transportation) and published by . This book was released on 2015 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's second Strategic Highway Research Program (SHRP 2) Report S2-C46-RR-1: Activity-Based Travel Demand Models: A Primer explores ways to inform policymakers' decisions about developing and using activity-based travel demand models to better understand how people plan and schedule their daily travel. The document is composed of two parts. The first part provides an overview of activity-based model development and application. The second part discusses issues in linking activity-based models to dynamic network assignment models.
Book Synopsis Urban Travel Demand Modeling Data by : David F. Pearson
Download or read book Urban Travel Demand Modeling Data written by David F. Pearson and published by . This book was released on 1994 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Travel Demand Forecasting Models by : Jason David Lemp
Download or read book Travel Demand Forecasting Models written by Jason David Lemp and published by . This book was released on 2007 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
