Occupational health and safety in major construction and engineering sites is one of the most critical indicators of project management efficiency and success. The concept of safety is no longer merely about complying with legal regulations or avoiding financial penalties; it has evolved into an organizational culture and an ambitious strategic goal known as the "Zero Accidents" vision. Achieving this goal in megaprojects—where heavy machinery, extreme heights, and diverse workforces intersect—requires transitioning from reactive measures after an incident occurs to proactive planning and prevention. Pillars of the "Zero Accidents" Strategy The "Zero Accidents" vision relies on four main pillars that integrate to ensure a safe working environment: Leadership and Top Management Commitment: Safety begins at the top; management's commitment to safety must manifest in financial and operational decisions, not just in slogans. This includes empowering any worker on site with Stop Work Authority if they perceive an immediate hazard, without fear of penalty or retaliation. Proactive Planning and Risk Management: This requires preparing a comprehensive risk assessment before starting any operational phase, applying daily job safety analyses, and issuing specialized work permits for high-risk tasks, such as working at high elevations, deep excavations, or confined spaces. Continuous Empowerment and Education: Intensive training should be provided to every worker upon joining the site, alongside daily safety toolbox meetings to discuss potential risks for the day's specific activities and how to avoid them. Implementation of Modern Technology: Adopting smart personal protective equipment equipped with sensors to detect falls or toxic gases, along with using drones and artificial intelligence, contributes to real-time site monitoring and identifying violations before accidents occur. Actionable Steps to Achieve an Incident-Free Site Practical safety measures are distributed across all project phases to ensure the highest levels of prevention: In the planning and design phase, safety requirements are integrated into engineering designs to minimize structural risks before execution begins. Transitioning to the mobilization phase, a thorough inspection of equipment and machinery is conducted, alongside verifying worker qualifications before site entry, ensuring operational efficiency and preventing sudden breakdowns. During daily execution, a rigorous near-miss reporting system is implemented, allowing the root causes of minor errors to be addressed before they escalate into major disasters. Finally, in the continuous evaluation phase, regular safety audits are conducted, and safe behaviors are rewarded to foster a culture of shared responsibility. Transforming Safety from Rules into a Daily Culture The difference between a conventional site and one that achieves "Zero Accidents" lies in human behavior. Building a behavior-based safety culture requires focusing on three core elements: First is recognition and reward through periodic recognition of workers and supervisors committed to safety standards. Second is transparency in reporting by encouraging workers to disclose errors and hazards without fear, treating near-misses as learning and improvement opportunities rather than looking for individuals to blame. Third is effective communication by providing instructions and guidelines in multiple languages to suit the diverse backgrounds of the workforce in megaprojects. Achieving "Zero Accidents" is not merely a numerical target, but a human and economic value that preserves workers' lives, prevents financial losses resulting from delays and injuries, and ensures the delivery of megaprojects on schedule and to the highest quality standards.