Dell’Orco, Ottomanelli, Caggiani and Sassanelli Dell’Orco M, Ottomanelli M, Caggiani L and Sassanelli D. 2008. New Decision Support System for Optimization of Rail Track Maintenance Planning Based on Adaptive Neurofuzzy Inference System Transportation Research Record: Journal of the Transportation Research Board, Volume 2043, pp. 49-54 1 Please cite: Dell’Orco M, Ottomanelli M, Caggiani L, Sassanelli D. 2008. New Decision Support System for Optimization of Rail Track Maintenance Planning Based on Adaptive Neurofuzzy Inference System. Transportation Research Record: Journal of the Transportation Research Board, Volume 2043, pp. 49-54 NEW DECISION SUPPORT SYSTEM FOR OPTIMIZATION OF RAIL TRACK MAINTENANCE PLANNING BASED ON ADAPTIVE NEUROFUZZY INFERENCE SYSTEM Mauro Dell’Orco 1 , Michele Ottomanelli 2 , Leonardo Caggiani 1 * and Domenico Sassanelli 1 1 Dept. of Roads and Transportation - Technical University of Bari Via Orabona, 4 70125 Bari, Italy Phone: +39 080 596 3327 Fax: +39 080 596 3329 e-mails: dellorco@poliba.it; l.caggiani@poliba.it; d.sassanelli@poliba.it 2 Dept. of Environmental Engineering and Sustainable Development II Faculty of Engineering in Taranto - Technical University of Bari Viale Del Turismo, 4 74100 Taranto (Italy), Phone: +39 080 596 4270 Fax: +39 080 596 3329 e-mail: m.ottomanelli@poliba.it; *corresponding author Submitted on July 30, 2007 for the 87 th Annual Meeting of the Transportation Research Board Reviewed and re-submitted on November 14, 2007 Reviewed and re-submitted on March 15, 2008 for publication Manuscript length: 4058 words + 6 tables + 6 figures = 7058 equivalent words