Sighisoara has a fairly good run of train connections with Brasov and Bucharest, and there is a fairly extensive range of services to and from other towns likely to be on your itinerary; you can for instance get a direct train here from Budapest, Vienna, and Prague. Sighisoara's train station is about 1km (2/3 mile) from the old city, at one end of a quiet residential neighborhood outside the medieval center. When trains arrive, taxis turn up to drive visitors to their hotels; there is an access road leading from the lower city into the citadel. Although your hotel should be able to organize any onward travel, you can buy train tickets from the CFR Agentie de Voiaj, Str. O. Goga 6A (tel. 0265/77-1886; Mon-Fri 8am-4pm), in the lower part of town.
The Cultural Heritage Info Center, Str. Muzeului 6 (tel. 0788-115-511) can assist you with just about anything; the efficient staff also dispenses maps and organizes tours.