Civil Engineering and Environmental Systems is the only Journal devoted to the discussion, dissemination and development of systems techniques and their underlying assumptions through the spectrum of civil engineering activity and environmental decision-making and management. The Journal provides a comprehensive approach to the practical application and development of ``hard'' and ``soft'' systems methodologies. covering engineering optimization, risk assessment and decision making, system identification, numerical simulation and qualitative modelling of complex systems, safety, methods of modelling uncertainty. Attention is paid to conceptual issues as well as quantitative techniques. The Journal also deals with emerging information technology techniques such as knowledge-based systems, genetic algorithms and neural networks. The Journal offers working tools to the practising civil engineer involved in the planning, design, construction, and maintenance or operation of large scale civil engineering and environmental systems. The Journal publishes case studies, research papers, authoritative review articles, conference reports, book reviews, and a calendar of forthcoming events. The current impact factor is 0.083.