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Sponsor: USDOT

Issues in Taxi-Based Specialized Transit Services

Status

Complete

Project Timeline

September 1, 1980 - January 31, 1982

Principal Investigator

Roger Teal

Sponsor & Award Number

USDOT: CA-06-0153

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Related Publications

working paper | Sep 1982

Taxi-Based Public Transportation for the Elderly and Handicapped

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PERFORMANCE INDICATORS AND PEER GROUPS FOR TRANSIT PERFORMANCE ANALYSIS

Status

Complete

Project Timeline

July 1, 1982 - June 30, 1983

Principal Investigator

Gordon (Pete) Fielding

Sponsor & Award Number

USDOT: CA-11-0026

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Team Departmental Affiliation

Economics

Project Summary

Develop analytical techniques to facili- tate access to Section 15 data base; analyze impact of ownership and management forms on transit operator performance and productivity; training activities for middle managers, industrial relations managers, operations supervisors and smaller transit property operators.

Related Publications

working paper | Oct 1983

Dimensions of Bus Performance of Peer Groups of Transit Agencies in Fiscal Years 1980 and 1981 Using Section 15 Data

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Chaining Behavior in Urban Tripmaking — Phase 1

Status

Complete

Project Timeline

January 1, 1992 - February 28, 1983

Principal Investigator

Will Recker

Project Team

Michael McNally, Gregory Root, Carleton Waters

Sponsor & Award Number

USDOT: DTRS-57-81-C-00048

Areas of Expertise

Travel Behavior, Land Use, & the Built Environment

Team Departmental Affiliation

Civil and Environmental Engineering

Related Publications

working paper | Feb 1983

Chaining Behavior in Urban Tripmaking: Appendices to Interim Report

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working paper | Feb 1983

Chaining Behavior in Urban Tripmaking: Interim Report

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working paper | Oct 1981

Chaining Behavior in Urban Tripmaking: A Critical Review

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URBAN TRANSPORTATION DEREGULATION IN ARIZONA

Status

Complete

Project Timeline

September 1, 1982 - November 30, 1983

Principal Investigator

Roger Teal

Sponsor & Award Number

USDOT: CA-06-0183

Areas of Expertise

Transportation Economics, Funding, & Finance

Related Publications

working paper | Dec 1983

Urban Transportation Deregulation in Arizona

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The impact of changing women’s roles on transportation needs and usage

Status

Complete

Project Timeline

July 1, 1981 - August 31, 1983

Principal Investigator

William Michelson

Sponsor & Award Number

USDOT: CA-11-0024

Areas of Expertise

Travel Behavior, Land Use, & the Built Environment

Related Publications

research report | Sep 1983

The impact of changing women's roles on transportation needs and usage

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PRIVATE SECTOR OPTIONS FOR COMMUTER TRANSPORTATION

Status

Complete

Project Timeline

September 1, 1981 - March 30, 1984

Principal Investigator

Roger Teal

Sponsor & Award Number

USDOT: CA-11-0022

Areas of Expertise

Travel Behavior, Land Use, & the Built Environment

Related Publications

research report | Mar 1984

Private Sector Options for Commuter Transportation

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Infrastructure-based Sensor Fusion for Tracking Connected and Autonomous Supply Chain Assets in Cyber-Compromised Environments

Status

In Progress

Project Timeline

August 1, 2023 - August 31, 2025

Principal Investigator

Stephen Ritchie

Project Team

Liyuan Zhao

Sponsor & Award Number

USDOT: RITCHIE
(Subcontract to The Ohio State University)
(Also see this project page)

Areas of Expertise

Other

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

The ongoing growth and economic benefits of America’s largest container ports are threatened by negative externalities associated with port operations, particularly increasing congestion and harmful emissions caused by drayage truck and rail modes serving the ports and traveling to inland transloading, rail yard, warehouse and distribution center facilities. For example, the San Pedro Bay Ports (SPBP) of Los Angeles and Long Beach in Southern California, the largest container port complex in the US and one of the largest in the world, is critical to the nation’s future intermodal logistics system and vital to our economic growth and standard of living. One proposed solution to these issues is to transition the heavy duty (HD) drayage fleet (as well as long haul fleets) to autonomous vehicles (AVs), in order to increase supply chain capacity, throughput, safety, resilience and sustainability. In this research, we plan to extend our Freight Mobility Living Laboratory (FML2) research of Year 1, which explored the feasibility of LiDAR technology for traffic monitoring in an infrastructure-based, side- fire LiDAR configuration. LiDAR-based microscopic longitudinal and lateral trajectories were obtained for HD vehicles at 0.1 second resolution, enabling site-based detection of anomalies in vehicle behavior. In Year 2, we will develop combined LiDAR and automated license plate reader (ALPR)-based models that will re-identify a potentially cyber-compromised HD AV (based on its anomalous trajectories) over long distances across a complex metropolitan highway network. The LiDAR-based approach to truck tracking is resilient and possesses inherent advantages over other competing technologies: Because LiDAR is an active sensor technology which measures light pulses emitted from the unit itself, it is unaffected by lighting conditions and offers an advantage over traditional cameras where glare, shadows and low-light conditions are known to adversely affect performance. And while automated license plate reader (ALPR) technology has demonstrated high accuracies in plate reads, it cannot be relied upon solely for vehicle reidentification as it performs best when a truck possesses a plate that is present and not obscured, which may not be the case for a cyber-compromised operator that is actively avoiding surveillance. Two existing FML2 study sites spanning over 40-miles across the Los Angeles freeway network – on Interstate I-710 near the SPBP, and on the SR-60 freeway en route to the Inland Empire logistics center, will be used in this study. Data will be collected and processed at both locations to develop a LiDAR point-cloud and ALPR-based long distance tracking and re-identification model to investigate proof-of-concept for corridor and network application of these technologies.

Modeling Platform for Transport Network Vulnerabilities and System Performance Analysis

Status

In Progress

Project Timeline

August 1, 2023 - August 31, 2025

Principal Investigator

r-jayakrishnanR. (Jay) Jayakrishnan

Project Team

Shakib Kafashan, Rony Gracious

Sponsor & Award Number

USDOT: JAYAKRISHNAN
(Subcontract to The Ohio State University)
(Also see this project page)

Areas of Expertise

Other

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

Developing a mobility system testing environment (a “Living Lab”) of large-enough urban area with multiresolution modeling capabilities, and realistic real-world data inputs. A modeled network of intersections for signal-control testing (from the city of Irvine) and the wider area around it known as Autonomicity will be developed with simulation capabilities for security breaches on a variety of sensor, controller and communication components of the network. The activity system models used for realistic system conditions can be from an even larger network of Orange County that can be modeled at a mesoscopic level using models such as DYNAMART and POLARIS. This platform will address the network system-level impacts of security breaches from vulnerabilities in the sensor and control systems for vehicular traffic, both in current conditions and the future scenarios of cooperative driving automation (CDA) that are expected in on-demand passenger delivery systems becoming popular now (ridehailing, shared-ride, mobility-as-a-service), and package delivery systems. This research will build on the Transportation Mobility Living Laboratory (TML2) at UCI. TML2 includes a system of infrastructure-based LiDAR that can track all road users across a network of 25 intersections in the City of Irvine to support safety, efficiency, and energy advances through CDA. Incidents as well as security breaches can result due to inaccuracies of sensor technology. This research will focus on identifying and mitigating the vulnerabilities of the TML2 system to maintain system performance under accidental and nefarious disruptions. System effects of existing traffic sensor and control system breaches: We will develop failure scenarios resulting from potential vulnerabilities and study their system effects (delays, accident probabilities) using simulated microscopic vehicular trajectories in the presence of V2X and CDA applications. The research focus will be on selected case studies such as on 1. automated lane centering security, 2. safety policy enforcement for Autonomous Driving, and 3. sensor redundancy design for recovery of the transportation system, and 4. IOTbased on-demand passenger delivery system vulnerabilities. The simulated system developed in the above tasks will be used for predicting transportation domain-specific system effects and designing sufficient redundancy while facing security breaches and attacks. Dynamic multiple time-period modeling will be used to quantify the lost efficiency in selected Autonomicity network contexts, and this will be used in the design problem: Multi-objective Performance Evaluation: The platform will incorporate concepts of evaluating the modeled performance outputs using a variety of performance objectives such as 1. degradation and system resilience on temporal measures of performance in the immediate, medium-term and long-term perspectives, 2. vulnerability exposure of different user-classes in the broader activity system and the associated access to transportation srevices, 3. system degradation and resilience on various energy, and environmental impacts with measures such as fuel consumptions, emissions, and their surrogate measures such as VMT (vehicle miles traveled) and VHT (Vehicle Hours Traveled). Disaggregating the components of output measures (e.g., VMT) for various user and vehicle classes can provide richer insights on the impact of vulnerability and security breaches on each class of users. Keywords and Index Terms: Simulation platform, transport network performance modeling, agent-based models, cyber-security and system vulnerability, disruption impacts

UCTC: (1988) STURAA version

Status

Complete

Project Timeline

September 1, 1988 - January 1, 1992

Principal Investigator

Will Recker

Sponsor, Program

USDOT // UTC
(Subcontract to UC Berkeley)

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

This project represents collective projects funded under the original University of California Transportation Center (UCTC) that was authorized by Congress in fall 1988.

Related Publications

working paper | May 1990

Simultaneous Equation Systems Involving Binary Choice Variables

Read more
working paper | Nov 1988

Simultaneous Equation Systems Involving Binary Choice Variables

Read more
working paper | Jun 1991

Home Environment Consequences of Commute Travel Impedance

Read more
working paper | Jun 1989

Aggression on Roadways

Read more
working paper | Jun 1991

Federal Subsidies and the Ruinous Decline in Transit Productivity: It Wasn't Supposed to Turn out Like This

Read more
working paper | Nov 1991

Structural Models of the Effects of the Commute Trip on Travel and Activity Participation

Read more

Interjurisdictional coordination of Katella Avenue traffic signals

Status

Complete

Project Timeline

January 1, 1900 - August 31, 1992

Principal Investigator

Will Recker

Project Team

Barbara Neenan, John Leonard, Michael McNally

Areas of Expertise

Infrastructure Delivery, Operations, & Resilience

Team Departmental Affiliation

Civil and Environmental Engineering

Related Publications

research report | Jan 1992

Interjurisdictional coordination of Katella Avenue traffic signals

Read more
MS Thesis | Dec 1991

The interjurisdictional coordination of Katella Avenue traffic signals

Read more

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