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Daniel B. Work

Researcher at Vanderbilt University

Publications -  136
Citations -  5461

Daniel B. Work is an academic researcher from Vanderbilt University. The author has contributed to research in topics: Traffic flow & Computer science. The author has an hindex of 27, co-authored 115 publications receiving 4384 citations. Previous affiliations of Daniel B. Work include Urbana University & University of California, Berkeley.

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Evaluation of Traffic Data Obtained via GPS-Enabled Mobile Phones: the Mobile Century Field Experiment

TL;DR: In this paper, a traffic monitoring system based on GPS-enabled smartphones exploits the extensive coverage provided by the cellular network, the high accuracy in position and velocity measurements provided by GPS devices, and the existing infrastructure of the communication network.
Journal ArticleDOI

Evaluation of traffic data obtained via GPS-enabled mobile phones: The Mobile Century field experiment

TL;DR: Results suggest that a 2-3% penetration of cell phones in the driver population is enough to provide accurate measurements of the velocity of the traffic flow, demonstrating the feasibility of the proposed system for real-time traffic monitoring.
Proceedings ArticleDOI

Virtual trip lines for distributed privacy-preserving traffic monitoring

TL;DR: This work proposes a system based on virtual trip lines and an associated cloaking technique that facilitates the design of a distributed architecture, where no single entity has a complete knowledge of probe identities and fine-grained location information.
Proceedings ArticleDOI

An ensemble Kalman filtering approach to highway traffic estimation using GPS enabled mobile devices

TL;DR: A new partial differential equation (PDE) based on the Lighthill-Whitham-Richards PDE, which serves as a flow model for velocity, is introduced and a Godunov discretization scheme is formulated to cast the PDE into a Velocity Cell Transmission Model (CTM-v), which is a nonlinear dynamical system with a time varying observation matrix.