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Automatic Transit Schedule Updating Using Avl Apc System
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Book Synopsis Automatic Transit Schedule Updating Using AVL/APC System by : Shengfeng Deng
Download or read book Automatic Transit Schedule Updating Using AVL/APC System written by Shengfeng Deng and published by . This book was released on 2018 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Observing and fixing transit vehicle's schedule adherence problems have always been one of the main priorities of a transit agency, and different approaches have been developed over time to help reflect transit vehicle's performance and where the improvements should be focuses. Unlike traditional performance analysis that generates reports of the bus's performance based on some performance measures such as 'on-time percentage' at each timepoint, in this study, a methodology is developed that uses the on-time performance of individual transit vehicles on each segment of the route to identify systemic problems with the transit schedule and then make recommended adjustments to the schedule for the next schedule period. The output of the proposed methodology in this research study consists of: 1. On-time performance measures for each segment of the route of interest; 2. Recommended changes to the transit schedule. These recommendations can be made under two different assumptions related to transit agency resources. The “Resource unconstrained” approach assumes that there is no constrain on the amount of time that can be added to the schedule. The “Resource constrained” approach assumes that time can be reallocated within the schedule, but the route traversal time must not be extended. The proposed method provides transit agencies with a mechanism to effectively adjust bus schedules to improve on-time performance. An application of the proposed methodology is conducted and tested on Automatic Vehicle Location (AVL) and Automatic Passenger Counting (APC) system records from Grand River Transit which is located in Waterloo Region of Ontario, Canada.
Book Synopsis Using Transit AVL/APC System Data to Monitor and Imporve Schedule Adherence by : Michael Mandelzys
Download or read book Using Transit AVL/APC System Data to Monitor and Imporve Schedule Adherence written by Michael Mandelzys and published by . This book was released on 2010 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: The implementation of automatic transit data collection via Automatic Vehicle Location (AVL) and Automatic Passenger Counting (APC) systems provides an opportunity to create large, detailed datasets of transit operations. These datasets are valuable because they provide an opportunity to evaluate and optimize transit operations using methods that were previously infeasible and without the need for expensive manual data collection. This thesis develops a methodology to utilize data collected by typical AVL/APC system installations in order to (a) develop advanced performance measures to quantify schedule adherence and (b) automatically determine the causes of poor schedule adherence. The methodology addresses the difficulty that many small to medium sized transit agencies have in utilizing the data being collected by proposing a methodology that can be automated, thereby reducing resource and expertise requirements and allowing the data to be more effectively utilized. The ultimate output of the proposed methodology includes the following: 1. A ranked list of routes by direction (for a given time period) that identifies routes with the poorest schedule adherence performance. 2. Performance measures within any given route, direction, and time period that identify which timepoints are contributing most to poor schedule adherence. 3. Statistics indicating identified causes of poor schedule adherence at individual timepoints. 4. A visualization aid to be used in conjunction with the cause statistics generated in Step 3 in order to develop an effective strategy for improving schedule adherence issues. With this information, transit agencies will be able to act proactively to improve their transit system, rather than wait until they discover problems on their own or hear complaints from passengers and drivers. The methodology is tested and demonstrated through application to AVL/APC system data from Grand River Transit, a public transit agency serving Waterloo Region in Ontario, Canada.
Book Synopsis AVL Systems for Bus Transit by : Doug J. Parker
Download or read book AVL Systems for Bus Transit written by Doug J. Parker and published by Transportation Research Board. This book was released on 2008 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's Transit Cooperative Research Program (TCRP) Synthesis 73: AVL Systems for Bus Transit: Update explores the uses of computer-aided dispatch/automatic vehicle location (CAD/AVL) systems in fixed-route and demand-responsive services (bus AVL), as well as changes in agency practices related to the use of AVL systems."--Publisher's website.
Book Synopsis Using Archived AVL-APC Data to Improve Transit Performance and Management by :
Download or read book Using Archived AVL-APC Data to Improve Transit Performance and Management written by and published by Transportation Research Board. This book was released on with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Uses of Archived AVL-APC Data to Improve Transit Performance and Management by : Peter Gregory Furth
Download or read book Uses of Archived AVL-APC Data to Improve Transit Performance and Management written by Peter Gregory Furth and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Schedule-Based Dynamic Transit Modeling by : Nigel H. M. Wilson
Download or read book Schedule-Based Dynamic Transit Modeling written by Nigel H. M. Wilson and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Schedule-Based Dynamic Transit Modeling: Theory and Applications outlines the new schedule-based dynamic approach to mass transit modeling. In the last ten years the schedule-based dynamic approach has been developed and applied especially for operational planning. It allows time evolution of on-board loads and travel times for each run of each line to be obtained, and uses behavioral hypotheses strictly related to transit systems and user characteristics. It allows us to open new frontiers in transit modelling to support network design, timetable setting, investigation of congestion effects, as well as the assessment of new technologies introduction, such as information to users (ITS technologies). The contributors and editors of the book are leading researchers in the field of transportation, and in this volume they build a solid foundation for developing still more sophisticated models. These future models of mass transit systems will continue to add higher levels of accuracy and sensitivity desired in forecasting the performance of public transport systems.
Book Synopsis Application of Transit AVL/APC Data for Network Wide Monitoring of the Performance of Signalized Intersections by : Ibrahim Almohanna
Download or read book Application of Transit AVL/APC Data for Network Wide Monitoring of the Performance of Signalized Intersections written by Ibrahim Almohanna and published by . This book was released on 2014 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The quality of service in urban transportation networks is determined mainly by the performance of the intersections. In particular, signalized intersections play a significant role in regulating the traffic in urban transportation networks. As a result, it is essential for transportation authorities to have a system, which can locate poorly operating intersections in the network and rank them for potential improvements. In practice, intersection performance is typically evaluated through the use of models such as HCS (Highway Capacity Software) or Synchro. These models estimate measures of performance (e.g. average vehicle delay, queue length, or level of service) on the basis of determinist and/or stochastic queueing theory. Another approach is to directly estimate intersection performance on the basis of delays experienced by vehicles. One source for such data is public transit bus fleets which are equipped with automatic vehicle location (AVL) systems and automatic passenger counting (APC) systems. These systems use GPS to record where and when a bus stops and the duration of the stop. The purpose of this research was to compare the intersection performance measures produced by Synchro and those estimated from archived AVL and APC data. An empirical evaluation was conducted using 28 intersections in the Region of Waterloo. Average delay and queue length were estimated using Synchro and estimated from archived AVL/APC data. The results show that the estimation of mean delay from the two methods are highly correlated. The estimation of queue length show larger differences, and in general, Synchro underestimated the queue length when compared to the AVL/APC data.
Book Synopsis An Automated Quality Assurance Procedure for Archived Transit Data from APC and AVL Systems by : Marian Saavedra
Download or read book An Automated Quality Assurance Procedure for Archived Transit Data from APC and AVL Systems written by Marian Saavedra and published by . This book was released on 2010 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Automatic Vehicle Location (AVL) and Automatic Passenger Counting (APC) systems can be powerful tools for transit agencies to archive large, detailed quantities of transit operations data. Managing data quality is an important first step for exploiting these rich datasets. This thesis presents an automated quality assurance (QA) methodology that identifies unreliable archived AVL/APC data. The approach is based on expected travel and passenger activity patterns derived from the data. It is assumed that standard passenger balancing and schedule matching algorithms are applied to the raw AVL/APC data along with any existing automatic validation programs. The proposed QA methodology is intended to provide transit agencies with a supplementary tool to manage data quality that complements, but does not replace, conventional processing routines (that can be vendor-specific and less transparent).
Download or read book TCRP Report 113 written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computer-Aided Transit Scheduling by : Martin Desrochers
Download or read book Computer-Aided Transit Scheduling written by Martin Desrochers and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume consists of papers presented at the Fifth International Workshop on Computer Aided Scheduling of Public Transport, which was held in Montreal from August 19th to the 23rd, 1990. Since the first Workshop in Chicago in 1975 the field had matured considerably. In 1975, there were no presentations that described systems which had been implemented and used on a regular basis. By 1980, in Leeds, and certainly by 1983, in Montreal, several systems were in regular use. They were based on both heuristics and mathematical programming techniques. In 1990, there were more than one hundred transit companies using computer-aided scheduling tools in their regular operations. The scope of the Workshop was broadened in 1987, in Hamburg, so that topics related to scheduling may be introduced. We find, for example, in this book several papers on the technology related to the collection of data and/or the data bases required for scheduling and planning activities.
Book Synopsis Advanced public transportation systems : the state of the art : update 2000 by :
Download or read book Advanced public transportation systems : the state of the art : update 2000 written by and published by DIANE Publishing. This book was released on 1993 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Passenger Counting Systems by : Daniel K. Boyle
Download or read book Passenger Counting Systems written by Daniel K. Boyle and published by Transportation Research Board. This book was released on 2008 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the state of analytical tools and technologies for measuring transit ridership via automatic passenger counter systems and other subsidiary data.
Book Synopsis Transit AVL/CAD Mobile Data Communications Feasibility Study by :
Download or read book Transit AVL/CAD Mobile Data Communications Feasibility Study written by and published by . This book was released on 2004 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is the second phase of a three-phase project that may result in the deployment of a statewide, multi-modal electronic payment system. Phase I of the project was completed in March, 2002 and focused on conducting a feasibility study in assessing the opportunities to develop and deploy a statewide, multi-modal electronic payment system. At the conclusion of Phase I, two recommendations were proposed for pilot programs. The purpose of the Phase II effort is to identify general requirements for a radio voice/data communications subsytem to support deploying a regional GPS-based Automatic Vehicle Location / Computer Aided Dispatch (AVL/CAD) system. This system could integrate onboard Mobile Data Terminals (MDTs) and central AVL/CAD software with the radio data communications infrastructure. The MDTs would allow frequent updates for dispatch on location, schedule and route adherence, driver-dispatch text messaging and driver schedule and route adherence feedback. This report will examine existing communications systems available to the transit agencies in the three regions: Bangor, Lewiston-Auburn and greater Portland. These systems will be evaluated in terms of area coverage, initial and recurring operating costs, feasibility, and AVL/CAD suitability. Alternative public and private networks for use in addressing communications needs will also be reviewed.
Book Synopsis ITS Deployment Guidance for Transit Systems by :
Download or read book ITS Deployment Guidance for Transit Systems written by and published by . This book was released on 1997 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical edition provides guidance for the transit community on developing and implementing ITS systems and using the National ITS Architecture. It is written specifically for the transit community and focuses on transit applications of ITS and the National ITS Architecture. It provides practical assistance based on real life experiences with developing and implementing transit ITS systems. This is a comprehensive document that defines the key concepts, products, and components of ITS and the National ITS Architecture. This document serves as a basic reference tool for understanding and deploying ITS in transit. It consists of six major sections and four appendices.
Book Synopsis Data Analysis for Bus Planning and Monitoring by : Peter Gregory Furth
Download or read book Data Analysis for Bus Planning and Monitoring written by Peter Gregory Furth and published by Transportation Research Board. This book was released on 2000 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis reviews the state of the practice in how data are analyzed. It addresses methods used to analyze data and what computer systems are used to store and process data. It also covers accuracy issues, including measurement error, and other problems including error in estimates. This document from the Transportation Research Board addresses agency experience with different data collection systems, giving attention to management error, the need for sampling, and methods for screening, editing, and compensating for data imperfection. Sample reports from selected U.S. and Canadian transit agencies are reproduced in this synthesis.
Download or read book E-transit written by Matthew A. Coogan and published by Transportation Research Board. This book was released on 2002 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geographic Information Systems Applications in Transit by : John C. Sutton
Download or read book Geographic Information Systems Applications in Transit written by John C. Sutton and published by Transportation Research Board. This book was released on 2004 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to transit practitioners and researchers, including technical staff and transit managers, as well as to vendors of Geographic Information System (GIS) solutions. This report illustrates the value of GIS to transit agencies in service provision and in potential cost savings. The synthesis summarizes the experiences of a variety of transit agencies, with information provided from small- and medium-sized transit operators, as well as from large transit agencies. It documents current practices, effective applications, and challenges.
