Keep a look out for police on the Sheridan Expressway heading south where it merges with the Bruckner. One or two Highway cars, sometimes unmarked. They are pulling motorcycles and speeders.
Definitely been stuck in traffic due to cops pulling (and towing) bikes and the resulting lolly gaggers. I've even seen someone pulled over further down the Bruckner in the left lane with a tow truck. Traffic was backed up for miles.
Southbound on the Major Deegan before the GWB turn off seems popular too.