01024516

Component

https://doi.org/10.3141/1972-11

http://scholar.google.com...hnan&publication_year=2006

A novel distributed method for estimating a trip table in real time is described. The system is called “persistent traffic cookies” by analogy with the use of cookies by web servers to keep track of the current state of web browsers navigating a web site. The method uses traffic cookies placed on in-vehicle computers to maintain the state (current trip) of vehicles moving through the system. These cookies are persistent from day to day; taken together, they form a complete travel history for a traveler or vehicle. The method leverages the vehicles to store their own travel data and then physically do carry those data around the network. Advantages include scalability in both storage and computational effort as well as the unique ability to incorporate the travel behavior of individuals into real-time traffic predictions. A small-scale simulation is presented to illustrate the concept and its potential applications.

01041095

English

pp 69-77

2006

Transportation Research Record: Journal of the Transportation Research Board

0309099811

Print

Figures (7) ; References (18)

Automotive computers; Data collection; Databases; Real time information; Traffic congestion; Travel behavior; Travel time; Trip tables

Travel data; Web-based systems

Highways; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Mar 3 2006 11:01AM

• AGORA-C Map-Based Location Referencing
• Comparative Analysis of Global Positioning System–Based and Travel Survey–Based Data
• Competition Between Egress Transport Modes: Stated Choice Model Incorporating Availability Effects
• Enhanced Roadway Geometry Data Collection Using an Effective Video Log Image-Processing Algorithm
• Enhanced System for Link and Mode Identification for Personal Travel Surveys Based on Global Positioning Systems
• Heuristic Algorithm for Solving a Multimodal Location-Based Concierge Service Problem
• Impact of Hourly Measured Speed on Accident Risk in the Netherlands: Results from Exploratory Study Using Geographic Information Systems
• Integrating Information About Complex Systems: Role of Metadata in the Acceptability of Results from Models
• Integration of Geographic Information System for Transportation with Real-Time Traffic Simulation System: Application Framework
• Intelligent Transportation System Spatial Data Modeling
• Nonresponse, Selectivity, and Data Quality in Travel Surveys: Experiences from Analyzing Recruitment for the German Mobility Panel
• Proxy Responses in Self-Completion Travel Diary Surveys
• Smoothing Methods to Minimize Impact of Global Positioning System Random Error on Travel Distance, Speed, and Acceleration Profile Estimates
• Transit Ridership Model Based on Geographically Weighted Regression
• Usage Analysis of First-Generation Intelligent Transportation Systems Data Archive: Lessons Learned in Development of Novel Information Technology Application
• Video-Based Automated Identification of Freeway Shoulder Events