æz ɐ dʒˈɛnɚɹəl ɹˈuːl, fɔːɹ hˈaɪweɪz wɪððə sˈeɪm nˈʌmbɚɹ ʌv dˈɪdʒɪts, nˈʌmbɚz fɹʌm sˈaʊθ tə nˈɔːɹθ, ænd fɹʌm wˈɛst tʊ ˈiːst.
As a general rule, for highways with the same number of digits, numbers from south to north, and from west to east.