Learn to "ghostride" the Zed.
On my trip back from Germany to the UK, I got coaught in the worst of it and it took me 18 hours to get back.
Stick the Zed in 1st or 2nd, then gently lift the clutch, no throttle, maybe feather the clutch till you start moving.
Once moving, resist the urge to step on the throttle, just let the Zed "ghostride" itself thru the snow and ice.
+1
then again my dad was a professional lorry driver and he taught me how to drive in the snow. Didnt even have to deactivate the esp ever and i havent stopped driving the last 4 days.
and there is no road gritted in hull....