Kin Sam Yen

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This report documents the AHMCT research project: " LiDAR for Data Efficiency " for the Washington State Department of Transportation (WSDOT). The research objective was to evaluate mobile LiDAR technology to enhance safety, determine efficiency gains, accuracy benefits, technical issues, and cost benefits of using this technology with a focus on(More)
Caltrans 15. Supplementary Notes 16. Abstract This report documents the AHMCT research project, " Creating Standards and Specifications for the Use of Laser Scanning in Caltrans Projects. " 3D laser scanning standards and specifications for Caltrans applications were developed to promoted large-scale deployment of this technology into Caltrans day-today(More)
Advanced Traffic Management Systems (ATMS) have successfully and impressively improved roadway traffic safety, reduced congestion, and increased economic productivity. As ATMS build-out continues into lower-density population areas, ATMS cost can become a serious obstacle, slowing implementation and negatively affecting safety, congestion, and productivity.(More)
In many 3D laser scanner applications, high relative precision (relative dimensions within the registered point cloud) is sufficient; in contrast, DOT applications require good relative precision and high absolute accuracy. Thus, precise and robust geo-referencing is critical, and robust workflows are needed to reduce the likelihood and impact of human(More)
The Open ATMS project is implementing an open-source Advanced Traffic Management System (ATMS) within the California State Department of Transportation (Caltrans) District 10 (D10) Transportation Management Center (TMC). This document details general software and hardware requirements to be used in the subsequent design, implementation, and testing phases.(More)
Open ATMS project is implementing an open-source Advanced Traffic Management System (ATMS) within the California State Department of Transportation (Caltrans) District 10 (D10) Transportation Management Center (TMC). This document is a review of Caltrans D10 TMC operations and equipment. This includes D10 TMC software, hardware, communications, and(More)
and Innovation (DRI) at the time of the projects completion (December 2006) and before the final project demonstration in June of 2007. The MRTIS project researched, designed, built, and field tested a mobile real-time information system for snow fighter supervisors. The system goal is to provide a prototype hardware and software system that provides(More)
This final report documents the Advanced Highway Maintenance and Construction Technology (AHMCT) Research Center's Phase Two development of the Advanced Snowplow (ASP), titled " Development of an Advanced Snowplow Driver Assistance System (ASP-II). " This work applies Intelligent Vehicle (IV) and Advanced Vehicle Control and Safety Systems (AVCSS)(More)
Advanced Snowplow Development and Demonstration: Phase I iii ABSTRACT This final report documents application of Intelligent Vehicle (IV) and Advanced Vehicle Control and Safety Systems (AVCSS) technologies to enhance the safety and efficiency of snow removal. The system developed, known as the Advanced Snowplow (ASP), includes lane position indication and(More)