is normal to have jam traffic when you r traveling on weekends..

been travelling to cameron quite often after i move to Utar @perak which is located1 hr from cameron..

stay at brinchang if you do not have transport... tanah rata is a bit quite and u'll take the risk when going back after pasar malam@ brinchang..

I will prefer hotel/motel in tanah rata because is quite and cooler..
stay few times in brinchang and is damn noisy even 3-4 am..