Intelligent Vehicle Highway Systems, Denver Metro Area: Master Plan, Appendix A: Project Descriptions

NHTSA · 1994 · ROSA P / United States. Joint Program Office for Intelligent Transportation Systems

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Summary

This document presents Appendix A of the 1994 Master Plan for Intelligent Vehicle Highway Systems (IVHS) in the Denver Metro Area, developed by the Colorado Department of Transportation (CDOT) and consulting firms. The plan outlines specific project descriptions designed to establish a comprehensive, region-wide transportation management infrastructure. The primary motivation is to reduce congestion, improve mobility, enhance safety, and minimize incident impacts through the integration of advanced technologies and multi-agency cooperation. The proposed strategy is organized around eight objectives, with the first two detailed in this excerpt. Objective #1 focuses on establishing a Traffic Operations Center (TOC) as the central focal point for IVHS activities. The TOC is designed as a multi-jurisdictional facility housing personnel from CDOT, the Colorado State Patrol, local governments, and private sector partners. Its functions include monitoring traffic flows, managing incidents, dispatching emergency services, and disseminating traveler information. The plan specifies a phased implementation involving conceptual design, construction, and equipment deployment, with an estimated total cost of $8.13 million over 45 months. Additionally, the plan proposes developing a TOC Expert System to provide automated decision support for traffic control, incident management, and demand management, with a recommended annual budget of $375,000 for four years. Objective #2 aims to improve the coverage and scope of traffic data collection. This involves deploying a comprehensive, network-wide system of vehicle detectors along freeway routes to collect real-time data on volume, speed, lane occupancy, and vehicle classification. The plan details the scope of work, which includes evaluating detection technologies (such as inductive loops, infrared, and microwave systems), determining functional requirements, and integrating data into the TOC. This data collection system is identified as a prerequisite for other IVHS functions, including incident detection, traveler information dissemination, and traffic control strategies. The document emphasizes coordination with existing projects, such as the expansion of freeway ramp metering and the North I-25 Traffic Management System, to ensure compatibility and maximize the utility of the collected data. The significance of this master plan lies in its structured approach to integrating disparate transportation technologies into a unified system. By centralizing operations in the TOC and standardizing data collection, the plan seeks to create a scalable infrastructure that supports both immediate improvements and long-term IVHS advancements. The document highlights the importance of public-private partnerships and interagency cooperation, positioning the Denver Metro Area as a model for regional transportation management. The detailed cost estimates, schedules, and scope of work provide a clear roadmap for implementation, underscoring the critical role of data infrastructure and centralized command in modernizing highway systems.

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