Policy

Development Of Binocular Stereopsis For Vehicle Lateral Control, Longitudinal Control And Obstacle Detection

Malik, Jitendra
Taylor, Camillo J.
Mclauchlan, Philip
Kosecka, Jana
1997

This report describes progress in the application of computer vision techniques to the lateral and longitudinal control of an autonomous highway vehicle. A vehicle's lateral dynamics and the design of an appropriate controller for lateral control are investigated. Stereo vision, in conjunction with a scanning laser radar sensor, are studied for providing range information applicable to the longitudinal control problem. The results from the experimental demonstration of this system are reported as part of the National Automated Highway Systems Consortium (NAHSC) Demonstration that took...

Connected and Automated Vehicle Policy Development for California

Shladover, Steven E.
2017

Connected Vehicles (CV), Automated Vehicles (AV) and their combination as Connected Automated Vehicles (CAVs) have beenamong the most important developments in surface transportation within the past few years. California has been a nationalleader in the development of these technologies and their predecessors for several decades, but that leadership position is injeopardy as other states court CAV development and testing outside of California. The paper suggests Californiaactively engages in CAV through a number of different outlets; encouraging the development of state-of- the-art testing...

Connected and Automated Vehicle Policy Development for California

Shladover, Steven
2017

Connected and automated vehicles (CAV) have the potential to confer large benefits to California in economic development (job creation) and in improving the operation of its road transportation network. CAV systems are likely to become one of the most important application domains for modern information technology, employing large numbers of highly skilled people in research, development and implementation wherever the companies that are developing these systems find the local environment most hospitable. The CAV systems are expected to produce significant improvements in roadway capacity...

Streamlining Connected Automated Vehicle Test Data Collection and Evaluation in the Hardware-in-the-Loop Environment

Fu, Zhe
Liu, Hao, PhD
Lu, Xiao-Yun, PhD
2020

Quality data collection, processing, and analysis are foundational to good research, policy making and regulation development. With the rapid development of Connected Automated Vehicles (CAV) technologies, it is urgent for both researchers and policy makers to obtain and evaluate good quality CAV data to better understand CAV impacts. CAV hardware-in-the-loop (HIL) tests can expedite CAV performance evaluation and system implementation. This research aims at equipping an existing HIL test tool with data management functions. To this end, a database instance on MySQL has been integrated...

TASK A-3: Examining the Linkages between Electronic Roadway Tolling Technologies and Road Pricing Policy Goals

Demisch, Alexander
Iseki, Hiroyuki, PhD
Taylor, Brian D.
2009

The surge of road pricing projects in the U.S. and around the globe over the past fifteen years has been enabled by a set of new communication and transportation technologies. There is currently a wide array of technical configurations ranging from systems based on “tried and true” short-range radio communications to experimental systems relying on global positioning satellites. These technologies provide for a more efficient collection of simple tolls, and also facilitate a movement toward more dynamic, variable user fees.In this study, we provide a comprehensive literature review of...

Throttle And Brake Control Systems For Automatic Vehicle Following

Ioannou, P.
Xu, Z.
1994

In this paper, the authors present several throttle and brake control systems for automatic vehicle following. These control systems are designed and tested using a validated nonlinear vehicle model first and then actual vehicles. Each vehicle to be controlled is assumed to be equipped with sensors that, in addition to its own vehicle characteristics, provide measurements of the relative distance and relative speed between itself and the vehicle in front. Vehicle-to- vehicle communication required for the stability of the dynamics of a platoon of vehicles with desired constant intervehicle...

A Combined Quantitative and Qualitative Approach to Planning for Improved Intermodal Connectivity at California Airports

Lu, Xiao-Yun
Gosling, Geoffrey D.
Ceder, Avi
Tung, Steven
Tso, Kristin
Shladover, Steven
Xiong, Jing
Yoon, Sangwon
2009

This report has been prepared as the final deliverable for a research project developing a combined quantitative and qualitative approach to planning for improved intermodal connectivity at California airports. The quantitative approach involves the development of an Intermodal Airport Ground Access Planning Tool (IAPT) that combines transportation system performance measurement, an air passenger mode choice model, and a model of transportation provider behavior, and is designed to interface with a traffic network analysis model. The qualitative approach is used to enhance the quantitative...

Opportunities for Improved Intermodal Connectvitiy at California Airports

Lu, Xiao-Yun
Gosling, Geoffrey D.
Xiong, Jing
2006

This working paper has been prepared as part of research to develop a combined quantitative and qualitative approach to planning for improved intermodal connectivity at California airports. The quantitative approach involves the development of an Intermodal Airport Ground Access Planning Tool that combines an air passenger model choice model, a model of transportation provider behavior and a traffic network analysis model. The qualitative approach will be used to enhance the quantitative analysis to account for those factors which are difficult to quantify and to provide recommended policy...

A Research Roadmap for Transportation and Public Health

Sandt, LS
West, A
Johnson, S
Brookshire, K
Evenson, K
Blackburn, L
Peach, K
Tartala, M
Ricklin, A
Shah, S
Rodriguez, D
Coburn, J
2019

Develop a holistic and strategic research roadmap–Identify evidence to support practical and useful information, and implementable tools, for state DOTs and partners.

Is electric vehicle carsharing for everyone? from activity patterns to user retention

Yassine, Ziad
Martin, Elliot
Shaheen, Susan
2025

This research explores the user dynamics of electric vehicle (EV) carsharing within underserved communities, focusing on BlueLA, a one-way station-based EV carsharing service in Los Angeles, California. This study employs a mixed-methods approach to evaluate how activity patterns differ between BlueLA member types and how membership type influences user retention rates. We conduct an exploratory data, clustering, and survival analyses, using BlueLA trip activity data, supplemented by insights from a user survey and a general population survey. Our results reveal distinct travel behaviors...