Pattaya Beach is split into three main areas: north, central and south. All these are linked by a very loose grid system, so once you've figured it out, it's easy.
Firstly, no prizes for guessing where Beach Road is: it's right next to the sand.
Running parallel to this is Second Road, then Third Road, and behind that is Sukhumvit Road.
Rather helpfully, three main roads then cut across these routes: North Pattaya Road, Central Pattaya Road and South Pattaya Road. The legendary Walking Street is at the far end of South Pattaya. map of Pattaya & Jomtien
If you go beyond south Pattaya and over a hill, you'll come to Jomtien, a slightly quieter resort.