I-25 truck safety improvements project : local evaluation report

NHTSA · 2004 · ROSA P / Colorado. Dept. of Transportation

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Summary

**Summary of the I-25 Truck Safety Improvements Project Local Evaluation Report** This report evaluates the I-25 Truck Safety Improvements Project (I-25 TSIP), a federally funded initiative administered by the Colorado Department of Transportation (CDOT). Although titled for truck safety, the project served as a comprehensive statewide deployment and integration of Intelligent Transportation Systems (ITS). Motivated by a Fiscal Year 1998 congressional earmark, the project aimed to address CDOT’s prior deficiencies in infrastructure, data collection, and inter-agency information exchange. The total project value was $11.25 million, comprising $9 million in federal funds and $2.25 million in matching state funds. The primary objective was to build upon existing systems to improve transportation efficiency, safety, traffic flow, and traveler information dissemination across Colorado. The project was structured into thirty task orders covering planning, design, and implementation. Key activities included the automation of Ports of Entry (POE) using Automated Vehicle Identification (AVI) and Weigh-In-Motion (WIM) sensors; the deployment of field devices such as Dynamic Message Signs (DMS), Highway Advisory Radio (HAR), and Closed Circuit Television (CCTV); and the enhancement of communications infrastructure, including a high-speed fiber optic ring in the Denver metro area. Significant integration efforts focused on upgrading the “Co-Trip” traveler information website, developing statewide speed maps, and establishing data exchange protocols between the Colorado Transportation Management Center (CTMC) and regional partners, including the Colorado Springs Traffic Operations Center and municipal agencies. Management involved a partnership between CDOT, the Federal Highway Administration (FHWA), a private systems integrator, and a program manager, though the integrator’s contract was terminated midway through the project, with remaining work completed by state forces. The evaluation found that the project successfully met its goals and objectives, transforming CDOT’s ITS capabilities. Specific outcomes included the automation of major POE facilities, allowing for commercial vehicle bypasses; the installation of numerous DMS and CCTV units; and the creation of robust data dissemination systems via the Co-Trip website and 1-800 information lines. The project also facilitated critical institutional integration, enabling real-time data sharing between state and local agencies. While some task orders were cancelled or deferred due to pricing disputes or separate funding sources (such as ramp metering and incident management plans), the core integration and deployment goals were achieved. CDOT characterized the project as a “resounding success” that resolved previous infrastructure deficits and established a functional, statewide ITS framework. The significance of the I-25 TSIP lies in its role as a catalyst for Colorado’s broader ITS program. By providing critically needed systems integration and deployment, the project generated significant momentum, attracting additional state and federal funding for subsequent initiatives. It established the technical and institutional foundations for advanced traffic management, incident response, and traveler information services. The report concludes that the project not only addressed immediate safety and efficiency needs but also created a scalable, interoperable architecture that enhanced the speed, accuracy, and reliability of transportation data across the state.

Key finding

The project successfully met all goals and objectives by addressing infrastructure deficiencies and strengthening inter-agency partnerships, resulting in order-of-magnitude improvements in field devices, data collection, and communications capabilities.

Methodology

other

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