Philippe Motte, retired chemical engineer internationaly recognized as a polyurethane polymers specialist (R&D within Dow/ Arco Chemical Bayer). French and Swiss citizen, born in Belgium (04 1952), living in Paris area, has spent 5 years in Philadelphia (1987-1992) (NewtownSquare). Mainly interested in Trolleys/Interurbans/LRT and Passenger trains worldwide. I have developed a solid knowledge for the European systems (France Germany Switzerland Belgium)