Exploring Travel Time Reliability Using Bluetooth Data Collection

Exploring Travel Time Reliability Using Bluetooth Data Collection
Author: Krista Marie Purser
Publisher:
Total Pages: 104
Release: 2016
Genre: Bluetooth technology
ISBN:

Bluetooth technology applications have improved travel time data collection efforts and allowed for collection of large data sets at a low cost per data unit. Mean travel times between pairs of points are available, but the primary value of this technique is the availability of the entire distribution of travel times throughout multiple days and time periods, allowing for a greater understanding of travel time variations and reliability. The use of these data for transportation planning, engineering and operations continues to expand. Previous applications of similar data sources have included travel demand and simulation model validation, work zone traffic patterns, transit ridership and reliability, pedestrian movement patterns, and before-after studies of transportation improvements. This thesis investigates the collection and analysis of Bluetooth-enabled travel time data along a multimodal arterial corridor in San Luis Obispo, California. Five BlueMAC devices collected multimodal travel time data in January and February 2016 along Los Osos Valley Road. These datasets were used to identify and process known sources of error such as occasions where vehicles using the roadway turn off and make an intermediate stop and multiple reads from the same vehicle; quantify travel time performance and reliability along arterial streets; and compare transit, bicycle, and pedestrian facility performance. Additionally, a travel time model was estimated based on segment characteristics and Bluetooth data to estimate average speeds and travel time distributions.

Cost-effective Performance Measures for Travel Time Delay, Variation, and Reliability

Cost-effective Performance Measures for Travel Time Delay, Variation, and Reliability
Author: National Cooperative Highway Research Program
Publisher: Transportation Research Board
Total Pages: 79
Release: 2008
Genre: Traffic congestion
ISBN: 0309117410

TRB¿s National Cooperative Highway Research Program (NCHRP) Report 618: Cost-Effective Performance Measures for Travel Time Delay, Variation, and Reliability explores a framework and methods to predict, measure, and report travel time, delay, and reliability from a customer-oriented perspective.

Methodology for Estimating the Value of Travel Time Reliability for Truck Freight System Users

Methodology for Estimating the Value of Travel Time Reliability for Truck Freight System Users
Author: Ira Hirschman
Publisher:
Total Pages: 108
Release: 2016
Genre: Freight and freightage
ISBN: 9780309375436

"TRB's National Cooperative Highway Research Program (NCHRP) Report 824: Methodology for Estimating the Value of Travel Time Reliability for Truck Freight System Users describes a survey methodology and develops a Truck Freight Reliability Valuation Model to estimate the value of travel time reliability for truck freight system users for evaluating proposed highway infrastructure and operations investments. It provides a research approach to conduct a more detailed survey and modeling protocol to collect direct schedule delay and cost information." -- Publisher's description.

Value of Travel Time Reliability in Transportation Decision Making

Value of Travel Time Reliability in Transportation Decision Making
Author:
Publisher:
Total Pages: 0
Release: 2015
Genre: Transportation
ISBN: 9780309274272

TRB's second Strategic Highway Research Program (SHRP 2) Report S2-L35A-RW-1: Value of Travel Time Reliability in Transportation Decision Making: Proof of Concept--Portland, Oregon, Metro demonstrates local methods to incorporate travel time reliability into the project evaluation process for multi-modal planning and development.

Highway Travel Time Estimation With Data Fusion

Highway Travel Time Estimation With Data Fusion
Author: Francesc Soriguera Martí
Publisher: Springer
Total Pages: 212
Release: 2019-03-27
Genre: Technology & Engineering
ISBN: 9783662569597

This monograph presents a simple, innovative approach for the measurement and short-term prediction of highway travel times based on the fusion of inductive loop detector and toll ticket data. The methodology is generic and not technologically captive, allowing it to be easily generalized for other equivalent types of data. The book shows how Bayesian analysis can be used to obtain fused estimates that are more reliable than the original inputs, overcoming some of the drawbacks of travel-time estimations based on unique data sources. The developed methodology adds value and obtains the maximum (in terms of travel time estimation) from the available data, without recurrent and costly requirements for additional data. The application of the algorithms to empirical testing in the AP-7 toll highway in Barcelona proves that it is possible to develop an accurate real-time, travel-time information system on closed-toll highways with the existing surveillance equipment, suggesting that highway operators might provide their customers with such an added value with little additional investment in technology.