Sistema de sinalização ferroviária microprocessada

Abstract

This undergraduate thesis examines the evolution of railway signaling in Brazil, from the Staff system and relay interlocking to modern microprocessor-based systems, with emphasis on the Electrologixs equipment. The case study focuses on the railway section between Pindamonhangaba and Manoel Feio in the Vale do Paraíba, which operated for decades without contemporary signaling. The absence of automatic systems limited average speeds to 30 km/h, increased accident risks, and reduced logistical efficiency. The implementation of the CTC Vale do Paraíba project, based on microprocessor signaling, resulted in significant operational improvements: average speed increased to 50 km/h, traffic reliability and predictability were enhanced, and overall safety was strengthened. The impact of modernization is evidenced by the Train Schedule Graph (GHT), showing higher train circulation and more efficient use of the railway network. Beyond technical outcomes, the project provided the author with substantial professional learning, reinforcing expertise in railway engineering, automation, and project management. The study concludes that signaling modernization is a crucial factor for operational efficiency, safety, and competitiveness in Brazil’s railway transport sector.