PATH

Smart Parking Pilot on the Coaster Commuter Rail Line in San Diego, California

Rodier, Caroline
Shaheen, Susan A.
Blake, Tagan
2010

Public transit authorities increasingly are harnessing advances in sensor, payment, and enforcement technologies to operate parking facilities more efficiently. In the short term, these innovations promise to enhance customer parking experiences, increase the effective supply of existing parking with minimal investment, and increase ridership and overall revenue. Over the longer term, these systems could further expand ridership by generating revenue to add parking capacity and improve access. This report describes the Smart Parking Pilot Project on the COASTER commuter rail line in San...

Final Report: Mobile Surveillance and Wireless Communication Systems Field Operational Test Volume 2: FOT Objectives, Organization, System Design, Results, Conclusions and Recommendations

Klein, Lawrence
1999

The Mobile Surveillance and Wireless Communication Systems Field Operational Test (FOT) evaluated the performance of wireless traffic detection and communications systems in areas where permanent detectors, electrical power, and landline communications were not available. The FOT partners designed and built six surveillance and three ramp meter trailers, a video and data retransmission or relay site, and video and data reception facilities at the Caltrans District 12 and Anaheim Traffic Management Center (TMCs) and the University of California at Irvine Institute of Transportation Studies(...

A Vehicle to Roadside Communications Architecture for ITS Applications

Lo, Tetiana
Varaiya, Pravin
2000

In this report we present a framework to assist Intelligent Transportation Systems (ITS) providers in the deployment of ITS user services requiring wide-area wireless communi-cations. We examine a scenario in the San Francisco East Bay Area for the 1995 time frame and determine the applicable ITS user services and wide-area wireless messaging requirements. Using the programming language SHIFT we investigate the uplink perfor-mance of a leading wireless candidate, Cellular Digital Packet Data in terms of its ability to support vehicle-to-roadside ITS applications during normal peak-period...

Longitudinal Control- Phase 1

Chang, Kwang Soo
1995

The objective of the project is to assess the feasibility of vehicle-follower control withhigh accuracy and good ride quality, using a Doppler radar as the primary sensor (SeeAppendix A.1 - A.3).

Organizing For ITS: Computer Integration Transportation Phase 1: Results For Arterial And Highway Transportation Management Centers

Hall, Randolph W.
Lo, Hong K.
Minge, Erik
1994

The objective of this study is to evaluate alternative frameworks for Computer Integrated Transportation (CIT) from an institutional perspective. This was accomplished through site visits and interviews at existing Transportation Management Centers (TMCs), along with focus group sessions in which strategies for CIT were presented to TMC managers and staff for their comments and discussion. The study found that four factors: 1) time-frame, 2) linking information to actions, 3) broadcast orientation, and 4) embracement of new technologies have profound implications for Intelligent...

The Role Of Advanced Traveller Information Systems In Incident Management

Al-deek, Haitham Mohammed
1992

This dissertation deals with the application of Advanced Traveler Information Systems (ATIS) in incident management. Using an idealized traffic corridor and deterministic queuing methods, conditions under which route guidance information is useful are identified. Benefits to traffic guided with ATIS are estimated and system performance is evaluated in diverse environments of non-recurring congestion.

Augmented Speed Enforcement Project at UC Berkeley

Chan, Ching-Yao
Gupta, Somak Datta
Huang, Jihua
Chiu, Guan-Ling
Nelson, David
Lian, Thang
2013

This report describes the development of an automated speed enforcement (aSE) system. The main function of the aSE system is to communicate relevant speed, violation, and hazard information to the stakeholders in the work zone context: drivers, CHP officers, and workers. The system consists of two sub-systems that can work jointly in an integrated manner as a whole but they can also be deployed and tested separately.

Bus Rapid Transit (BRT) Toolbox: Assessing Person Throughput to Measure Transportation Impacts for BRT Projects

Koling, Adam
Zhang, Wei-Bin
Zhou, Kun
Meng, Huadong
2018

This report studied person throughput as an impact metric for proposed BRT routes under Caltrans jurisdiction, given the agency’s specific interest in preserving or improving the performance of particular state-owned corridors. It also introduces a simple spreadsheet tool to estimate a BRT project’s traffic impact and show how improved bus service can boost corridor performance. Representatives of Caltrans D4, D7, and D11 were interviewed after tentative development of the tool, expressed support of a transition towards person throughput, and offered feedback on how the tool might best...

Advanced Information Techniques And Paratransit Services To Enhance Mobility Of Elderly And Disabled Travelers

Chen, Wan-Hui
Klaver, Kelley
Uwaine, Rochelle
Jovanis, Paul P.
1998

This study focused on determining whether advanced transportation services and information systems could enhance the mobility of disabled and elderly travelers in their use of transit, paratransit, or advanced paratransit services. The advanced proposed systems included regular paratransit and two advanced paratransit systems (real-time paratransit and real-time ridesharing) and five transportation information systems: computer, television, operator-assisted telephone, automated telephone, and personal information systems.

A Verified Hybrid Controller For Automated Vehicles

Lygeros, J.
Godbole, D. N.
Sastry, S.
1997

In this report the authors present a unified framework for carrying out safety calculations for the automated highway problem and obtain sufficient conditions for a set of continuous controllers to be safe and use these conditions to design a discrete scheme that switches between them. Guarantees of safety for the closed loop hybrid system follow by design/