Traffic in QC, like most of Metro Manila, is generally bad but there are few areas where it is not as bad (like inside a gated village). You can be assured that the main thoroughfares like EDSA, Aurora Blvd, Quezon Ave, Araneta Ave, Commonwealth Ave, North Ave, Mindanao Ave, Congressional Ave, Katipunan Ave, and all the other "Ave" roads are slow-moving. During rush hour, these roads are barely moving. New Manila, E Rod, Horsehoe Vill, are no exceptions.
There is also an inordinate amount of construction in QC, thanks to the construction of the grand terminal and the various delayed MRT extension plans, which only adds to the traffic mess.