PATH

Cal Poly Pomona EDAPTS Test Deployment

Jia, Xudong, PhD
Gerfen, Jeff, MS
Hockaday, Neil
Chapman, Bruce
2010

The Efficient Deployment of Advanced Public Transportation Systems (EDAPTS) demonstration at California State Polytechnic University, Pomona assessed the viability of using the EDAPTS procurement, installation, verification, and validation processes in a small transit environment to reduce the cost of ownership for technology solutions. Modified Systems Engineering processes were used to deploy an Intelligent Transportation System (ITS) solution on the Cal Poly Pomona Bronco Express campus bus system. This report provides a summary of methodologies used, outcomes, findings, recommendations...

Potential Benefits of In-Vehicle Information Systems (IVIS): Demand and Incident Sensitivity Analysis

Al-Deek, Haitham M. F.
1989

A preliminary evaluation of In-Vehicle Information Systems (IVIS) has been conducted by a research team at ITS and a final report entitled "Potential Benefits of In-Vehicle Information Systems in a Real Life Freeway Corridor under Recurring and Incident-Induced Congestion" [July 1988] [I] has been submitted to the PATH program. The principle end-products of the mentioned effort were the development of a simulation test-bed for the Santa Monica freeway (SMART) corridor and the estimation of the travel time savings to potential (IVIS) users under two traffic scenarios: recurring congestion...

TravInfo Evaluation: Value Added Reseller (VAR) Study Phase 1 Results

Loukakos, D.
Hall, R.
Weissenberger, S.
Yim, Y. B.
1996

TravInfo is a Field Operational Test (FOT) in advanced traveler information systems (ATIS) 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 multi-modal traveler information through commercial products and services. This working paper is part of the Technology Element of the TravInfo evaluation. It presents the results of the "before" wave of the Value-Added-Reseller (VAR) study, in which 17 TravInfo registered VARs and 16 non-...

Drag Measurements on a Platoon of Vehicles

Zabat, Michael
Farascaroli, Stefano
Browand, Frederick
Nestlerode, Michael
Baez, John
1994

This report details the design and implementation of wind tunnel tests to evaluate the aerodynamic performance of individual members of 2,3, and 4- vehicle platoons. The purpose of the tests described here is to quantify the behavior of vehicle drag, or--or more properly--drag coefficient, as a function of vehicle spacing. One-eight scale models of the 1991 GM Lumina van are used as the prototype vehicle. The design and fabrication of force balances capable of measuring drag, side force and yawing moment is described. Models are mounted above a porous ground plane surface designed to...

Evaluation of the Anaheim Advanced Traffic Control System Field Operational Test: Introduction and Task A: Evaluation of SCOOT Performance

Moore, James E., II
Jayakrishnan, R.
McNally, M. G.
MacCarley, C. Arthur
1999

This report provides an overview of the federally-sponsored Anaheim Advanced Traffic Control System Field Operations Test, and of the technical issues associated with the evaluation of SCOOT performance during this test. The primary FOT objective was the implementation and performance evaluation of adaptive traffic signal control technologies including an existing second generation approach, SCOOT, and a 1.5 generation control (1.5GC) approach under development. Also selected for implementation was a video traffic detection system (VTDS). The SCOOT evaluation was defined relative to...

Longitudinal Control of a Platoon of Vehicles. I, Linear Model (UCB/ERL M89/106)

Sheikholeslam, Shahab
Desoer, Charles A.
1989

This paper presents a systematic analysis of a longitudinal control law of a platoon of vehicles using a linear model to represent the vehicle dynamics of each vehicle within the platoon. The basic idea is to take full advantage of recent advances in communication and measurement and using these advances in longitudinal control of a platoon of vehicles.

SmartBRT: A Set of Planning, Analysis and Evaluation Tools for Bus Rapid Transit: Final Report Year 1 of 2

Balvanyos, Tunde
Bethel, Wes
Gardes, Yonnel
Kourjanskaia, Natalia
Liu, Hongchao
Misener, Jim
Sousa, Joao
Vander Werf, Joel
Wei, Wenbin
2003

We report Year 1 results from a two-year project to develop a computer simulation, evaluation and visualization "toolbox", SmartBRT, to describe and evaluate operational aspects of bus rapid transit (BRT) concepts in order to aid decision-making. In conceiving and developing SmartBRT, we have maintained two objectives: 1. To provide FTA, Caltrans and local decision-makers with a rigorous and defensible, yet intuitive BRT operation evaluation method along with a general purpose BRT simulator/communication tool; and 2. To provide example applications of SmartBRT to actual BRT concepts and to...

Fault Detection and Handling for Longitudinal Control

Yi, Jingang
Howell, Adam
Horowitz, Roberto
Hedrick, Karl
Alvarez, Luis
2001

The purpose of this project is to extend and integrate existing results on fault diagnostics and fault management for passenger vehicles used in automated highway systems (AHS). These re-sults have been combined to form a fault diagnostic and management system for the longitudinal control system of the automated vehicles which has a heirarchical framework that complements the established PATH control system. Furthermore, the fault diagnostic module effectively mon-itors all of the sensors and actuators required for longitudinal control, while the fault handling module corrects for any...

The Naturalistic Driver Model: A Review of Distraction, Impairment and Emergency Factors

Caird, J.K.
Lees, M.
Edwards, C.
2005

The purpose of this project is to review the literature on driver distraction, impairment and emergency response that supports the development of the Naturalistic Driver Model. Driver models that are based on high-quality empirical research are more likely to serve as a useful and valid tool to professionals and researchers.

Transportation Modeling for the Environment

Barth, Matthew J.
Norbeck, Joseph M.
1994

In this report, the authors describe preliminary research dealing with vehicle emissions associated directly with 1) Automated Highway Systems ( AHS) and 2) ramp metering. In performing this analysis, a power-demand modal emissions model has been integrated with several transportation simulation models in order to quantitatively determine the effects of Intelligent Transportation Systems (ITS) technology on vehicle emissions. For AHS, a steady-state speed/emissions comparison has been conducted between vehicles that are platooned and non-platooned. A comparison has been made between a...