Welcome to rilcie.blog.ryerson.ca!  RILCIE refers to risk-informed life-cycle infrastructure engineering, a burgeoning research and field field since the dawn of the new millennium.

The success and progress of human society rely on physical infrastructure systems (e.g., roads, rails, water and wastewater systems, power generations, transmission lines, oil and gas pipelines) for reliably providing and distributing essential services and resources to the public. As time in service accumulates, these infrastructure systems deteriorate and become more and more vulnerable to extreme events such as earthquake, hurricane and snow storm. If left unchecked, the aging can have adverse impact on public safety, utility’s profit, and even a whole nation’s economy. The recent bridge collapses in Quebec and Minneapolis just witnessed this.

To ensure safety and reliability throughout its service life, including any extended life, the aging of infrastructure needs to be effectively managed through innovative engineering ideas. The mandate of the Ryerson RILCIE team, led by Dr Arnold Yuan, is to advance the RILCIE theory and develop essential decision-support tools for infrastructure industry. RILCIE integrates performance-based design, probabilistic structural analysis, time-dependent reliability analysis, risk-informed construction contracting and delivery, online health monitoring, probabilistic degradation modeling, optimal in-service inspections and maintenance, life-cycle costing, and rehabilitation technology innovation.