Coupling Occupational Safety and Labour Productivity in Construction: A Multi-City Empirical Analysis and Predictive Optimization FrameworkSubash Thanappan, Shalin Prince, Adams Joe, Chiranjeevi Rahul Rollakanti and Reena M RE3S Web Conf., 702 (2026) 01024DOI: https://doi.org/10.1051/e3sconf/202670201024