Definately a case of, " Not the real Thailand ", however the authorities have decided for Pattaya a week long tourist orientated festival benefits the city overall. At least it's concentrated mainly in the worst bar orientated areas of Central Pattaya. Buakow, 6, 7 & 8. I find it hard to believe that any tourist would choose to come here if they weren't prepared to be participants.
Let the tourists have their fun. If you live here and your life revolves around those areas such that you can't put it on hold for a few days a year if it bothers you then I think you've got bigger problems than Songkran That or you're just a poor planner with limited interests or imagination.
If you need to go into Central Pattaya it's one of the few weeks left where having a car is actually an advantage and dare I say enjoyable.