This paper analyzes the bullwhip effect in decentralized, linear and time-invariant (LTI) supply chains. It generalizes existing results by broadening the class of policies and customer demand processes under consideration. The supply chain is modeled as a single-input, singleoutput control...

In this paper, the problem of modeling and control design of a computer controlled brake system is addressed. A nonlinear model for the brake system is developed by analyzing the input-output data obtained from the test bench. A controller for the brake system is designed by applying feedback...

This paper documents the development of a communications architecture for Intelligent Vehicle Highway Systems (IVHS) being studied by the California PATH Program. The authors use a layered architecture based on the OSI 7- layer reference model.

The passenger transportation modes of auto, bus, heavy rail, light rail and air are critical systems relied upon for business and leisure. When considering their environmental effects, most studies and policy focus on the fuel use of the vehicles, and ignore the energy and other resource inputs...

In this report, a Cooperative Intelligent Cruise Control (CICC) System is proposed to increase highway capacity and provide safety and comfort to drivers. The method requires an automatic throttle and brake control and simple infrastructure-vehicle communication. The system is designed to let a...

TravInfo is a Field Operational Test of advanced traveler information systems for the San Francisco Bay Area, sponsored by the Federal Highway Administration (FHWA). The project involves a public/private partnership which seeks to compile, integrate and broadly disseminate timely and accurate...

This report summarizes research work conducted under TO4143 at the California PATH ATMS Center at the University of California, Irvine. This project has two tasks: Functionality enhancements of the PARAMICS simulation model through API programming for the on-line simulation application; On-line...

This paper presents a theory for automated traffic flow, based on abstraction of vehicle activities such as entry, exit and cruising, derived from a vehicle's automatic control laws. The theory formulates TMC traffic plans as the specification of the activities and speed of vehicles, and the...

WTRP (Wireless Token Ring Protocol) is a medium access control (MAC) protocol for wireless networks. The MAC protocol through which mobile stations can share a common broadcast channel is essential in wireless networks. In a IEEE 802.11 network, the contention among stations is not homogeneous...