After more than 40 years in the transportation industry, Kevin Comstock is challenging the conventional project-based approach to advanced transportation systems. In his new book, Systems Stewardship: A Practitioner's Blueprint for Advanced Intelligent Transportation Systems, Comstock contends that transportation engineering must evolve beyond delivering individual projects and instead embrace a lifecycle approach that connects technology, operations, institutions, and public purpose. The book draws on Comstock's decades of experience across intelligent transportation systems (ITS), traffic operations, systems engineering, technology integration, and agency leadership.
At the heart of Systems Stewardship is the identification of six divides that often separate policy from operations, projects from long-term responsibility, physical infrastructure from digital systems, and data from decision-making. These divides, Comstock argues, lead to systems that are deployed but not sustained, undermining the very benefits they promise. To bridge them, he introduces the Hybrid "V" framework, a practical approach for defining needs, understanding systems, designing for operations, testing, governing change, measuring performance, and sustaining capability over time.
The framework is grounded in eight case studies from Chattanooga's smart-city work, including smart corridors, AI and LiDAR-based pedestrian analytics, crash prediction, digital twins, and traffic incident management. These real-world examples illustrate how the Hybrid "V" can turn innovation into transportation services that endure beyond the initial project. By providing a shared vocabulary and practical framework, the book aims to equip practitioners with the tools to manage complexity and ensure that technology investments deliver lasting value.
Comstock's career began close to the field, working with signal cabinets, controllers, communications equipment, detection systems, and the practical realities of keeping transportation infrastructure operating under real conditions. That experience shaped his view that transportation systems cannot be understood only from plan sheets, specifications, or dashboards. They must also be understood through the people who operate them, the technicians who maintain them, the agencies that govern them, and the public that depends on them every day. This perspective is central to Systems Stewardship, which emphasizes the human and institutional dimensions of technology deployment.
Over the course of his career, Comstock has led and supported major ITS and Transportation Systems Management and Operations (TSMO) efforts involving traffic management centers, adaptive signal systems, fiber and wireless communications networks, regional operations planning, systems engineering documentation, Concept of Operations development, requirements definition, training programs, and transportation technology deployment. His work has included projects for state departments of transportation, local governments, transit agencies, toll authorities, and regional partners. He currently serves as Director of ITS & TSMO within the Technology and Innovation sector at KCI Technologies, where he supports agencies and project teams in developing practical, maintainable, and future-ready transportation systems that connect infrastructure, data, communications, cybersecurity, operations, and institutional responsibility.
The implications of Comstock's argument are significant for transportation agencies facing rapid technological change. As smart cities and intelligent transportation systems become more prevalent, the risk of investing in systems that cannot be governed, operated, maintained, secured, measured, renewed, and handed forward responsibly grows. Systems Stewardship offers a blueprint for avoiding that fate, making the case that the future of transportation engineering depends not simply on deploying more technology, but on building systems that endure. By shifting from a project mindset to a stewardship mindset, agencies can ensure that their investments continue to serve the public long after the ribbon-cutting.
