I have deep knowledge of railway safety, interlocking systems in Hungary. I work on this field since the beginig of my career. I've changed to Alstom to extend my knowledge on vehicle field as well. I took part in designs (infrastructure projects) and product developments in the railway main line signalling domain. I deal with requirements. at Alstom (including the former Bombardier as well) I lead the pre-tender phase of several opportunities in the Hungarian market at the domain of rolling stock, maintenance services or signaling. last projects, I was involved in at Thales (today Hitachi, former Alcatel):- upgrade of Budapest - Hegyeshalom railway line (ETCS + interlockings)- product development: Signal-SEC= light signal with inteligent LED, SEC=single element controler, the newest part of the Elektra interlocking system.- product development: NICHU= neighbour interface controller Hungary (first put in operation: 2020.)- Békéscsaba - Lőkösháza 2nd track (ETCS + interlocking)- Rákos - Hatvan (interlocking)