The infrastructure growth in Saudi Arabia takes place on a large scale, requiring more integration between strategic risk management, occupational safety, disaster preparedness and post-disaster recovery considerations. This study creates a conceptual architecture for sustainable infrastructure development that incorporates risk management, safety management, emergency response, community preparedness and information technologies as an integrated and adaptive process. Based on recent disaster management studies and the attached Springer framework, the paper adopts the rapid evidence review approach to analyze scholarly publications from 2020 to 2025 on disaster risk management, resilient infrastructure systems, healthcare emergency readiness, digitalization and the Saudi Vision 2030 agenda. The findings of the review indicate that sustainable infrastructure development is not possible without an appropriate institutional setting and real-time communication, along with skilled and knowledgeable responders, involvement of local communities and learning from past disasters. The study develops a theoretical architecture of Saudi infrastructure preparedness that encompasses hazard assessment, risk management during the design phase, safety management at project sites, emergency operations coordination, recovery planning and performance assessment. It contributes an evidence-informed framework that could be helpful for infrastructure clients, contractors, regulators and emergency organizations dealing with transportation systems, utility networks, energy facilities, healthcare facilities and giga projects.