Trimble Case Studies Streamlining Pavement Project Reviews Through Visualization
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Streamlining Pavement Project Reviews Through Visualization

Trimble
Application Infrastructure & Middleware - Data Visualization
Application Infrastructure & Middleware - Database Management & Storage
Construction & Infrastructure
Logistics & Transportation
Maintenance
Construction Management
Infrastructure Inspection
Software Design & Engineering Services
System Integration
The California Department of Transportation (Caltrans) manages one of the largest state-owned road networks in the U.S., including more than 50,000 lane miles of roads and 13,063 state highway bridges. The agency wanted to implement a visualization tool within its deployment of AgileAssets® Pavement Analyst™, an advanced pavement management system (PMS) known internally at Caltrans as PaveM. The tool would facilitate the pavement project review process by displaying the relationships between the recommended projects and the currently programmed, under-construction, and as-built projects. Caltrans faced several challenges in developing and implementing the H-Chart project visualization tool. It needed to manage external development of H-Chart with the UCPRC, ensure the tool met specific requirements, and integrate the tool successfully with its PMS to access data for visualization and evaluation.
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The California Department of Transportation (Caltrans) is a government agency that manages one of the largest state-owned road networks in the U.S., including more than 50,000 lane miles of roads and 13,063 state highway bridges. Caltrans also permits more than 400 public-use airports and special-use heliports, provides inter-city rail services, and owns or controls 350,000 acres of right-of-way. The agency is responsible for the construction, maintenance, and operation of the California state highway system, as well as that of the related transportation facilities within the state. Caltrans' mission is to provide a safe, sustainable, integrated, and efficient transportation system to enhance California's economy and livability.
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Caltrans partnered with the University of California Pavement Research Center (UCPRC) to develop an automated visualization tool called H-Chart, short for Highway Chart. The tool was designed to be automated, efficient, and highly functional, capable of processing large sets of pavement data and facilitating calibration, validation, and further improvement of Caltrans’ PMS. With advanced analytical capabilities in place via PaveM, Caltrans used Pavement Analyst to provide pavement data to the H-Chart visualization tool. Key aspects of the H-Chart implementation included integrating Pavement Analyst with H-Chart, configuring Pavement Analyst to provide pavement data to H-Chart, and configuring H-Chart to efficiently process and visually map large sets of pavement data.
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The implementation of the H-Chart visualization tool has greatly facilitated Caltrans’ pavement project review and selection process.
The tool enables engineers to quickly identify project gaps, overlaps, and appropriate treatments while also helping to prioritize and select candidate projects.
H-Chart reduces staff time required for project reviews.
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