they -sometimes- salt and sand
i dunno about you guys but DC has some of the most unpredictable weather... they expect snow 'flurries' and we get 6 inchs. our snow plows are never prepared enuff cuz its out of their control...
one time last year they expected just a little sleet. we got about 1/2 inch of freezing rain. and school was not closed (college that is)... sucked i almost cracekd my head open walking