In May 1994 the "tranvia" line 4 opened. Valencia was the first city in Spain to use this mode of transport in the modern era. Originally, line 4 was long and had 21 stations. The line connected the suburban lines with high demand zones such as the Polytechnic University, the new university campus and the Malvarosa beach, which the former line Empalme - Pont de Fusta - El Grau had connected before. One year later, in May 1995, line 3 was extended from El Palmaret in Alboraria to Alameda. The extension reused the older railway line Pont de Fusta-Rafelbunyol, of which part was scrapped (between Pont de Fusta - Sant Llorenç - El Palmaret), and the rest was switched from 750 V to 1500 V.