[LECTURE]I lived in Germany for a few years as a child and have visited other countries whose winters are a good deal more taxing than ours, even here in the Highlands they're relatively mild. Their infrastructure is such that things go into overdrive the minute a big freeze hits and roads are being cleared within hours, they use their military if needed. People who live in these areas have the thing sussed as well and travel only if they have to, dress appropriately*, carry emergency supplies with them and generally don't take stupid risks, they also do their part to keep things moving.
We aren't used to this kind of weather here, it happens so rarely and two in a row is virtually unheard of**, so it's no real surprise we're ill-prepared, but expecting the authorities to handle everything is neither practical nor fair. My brother has been out and dug out our path and that of the neighbours who can't do it themselves (some of the folk who live by us are getting on in years and we watch out for them). We can do a great deal to help ourselves, having said that though, it's clear our councils aren't coping at all well and haven't learned the lessons of last year. Get some cat litter if you can't dig and spread on your own path (it works well at melting snow and ice).
What can you do? Don't travel unless you must, dress warmly (layers work best) and always wear a hat, scarf and gloves. If driving a long distance, make sure you have a couple of flasks with soups and/or hot drinks, also some water. Make sure you have adequate meds to last several days and a fully charged mobile phone with the number of NHS 24/Direct in it. A "Diabetic on Board" sign in the window so that emergency services will know to check on you would be a good idea too. A blanket or two, a couple of torches with spare batteries and a shovel.
* I was in town yesterday afternoon where I passed a young girl on the street dressed in thin jeans and a rather flimsy looking top. A moment later I passed a much older woman equally inadequately dressed for a temp of -6c.
** We might have predicted it though as the aftermath of the volcanic eruptions in Iceland last year have not yet fully cleared from the upper atmosphere and are likely to lower world temperatures for a few years yet. After Krakatoa (1883), "average global temperatures fell by as much as 1.2 degrees Celsius in the year following the eruption. Weather patterns continued to be chaotic for years and temperatures did not return to normal until 1888." (Thanks to Wikipedia.)[/LECTURE]