09-02-2026

Modernizing Legacy Transit With Communications-Based Train Control (CBTC) And Train Detection Systems

Estimated reading time: 2 minutes

Public transit systems keep cities moving. However, many of the world’s rail networks rely on legacy infrastructure that must evolve to meet rising expectations for safety, reliability, and capacity. In this episode of Meet the Mission, host Candice Scarborough sits down (in-person!) with rail and transit experts Lori Colangelo, Bob Gomez, and Brian Dwyer to explore how Communications-Based Train Control (CBTC) is reshaping rail operations across North America. In addition, they discuss changes beyond North America.

Drawing on decades of experience working with major transit agencies, our guests discuss the technology, people, and partnerships that enable large-scale modernization efforts. Moreover, they share lessons learned from some of the industry’s most complex rail transformation programs.

Episode Breakdown

  • 0:12 – 4:52: Meet The Experts Behind Rail Modernization – Rail and transit leaders share their experience delivering major CBTC and transit modernization programs across North America. They also share experiences from Europe.
  • 4:52 – 8:55: Why Agencies Are Investing In CBTC – The team explains how Communications-Based Train Control improves safety, capacity, service reliability, and on-time performance. It does this by providing real-time train location and movement data.
  • 8:55 – 14:45: Modernizing Active Rail Networks – Experts discuss the challenges of upgrading critical transit infrastructure while trains continue operating. Meanwhile, passengers depend on daily service.
  • 14:45 – 18:56: Rail Modernization As Business Transformation – The conversation expands beyond signaling technology to explore fleet upgrades, power systems, workforce readiness, stakeholder engagement, and organizational change management.
  • 18:56 – 23:38: Lessons Learned From Global CBTC Programs – The panel shares best practices for deploying proven technologies. They also explain integrating new systems with legacy infrastructure, building dedicated project teams, and maintaining strong agency partnerships.
  • 23:38 – 29:52: The Future Of Rail Innovation – The experts examine emerging opportunities including AI-driven analytics, autonomous transit operations, predictive maintenance, improved passenger experiences, and industry-wide standardization.
  • 29:52 – End (33:49): Building The Next Generation Of Transit Leaders – The episode concludes with career advice, workforce development insights, and recommendations for students and professionals interested in the future of rail transportation.

Tune In and Join The Conversation

Check out the full episode on YouTubeSpotify, or Apple Podcasts!

Be the first to receive updates about Parsons news, events, and innovations. Subscribe Today!