User:40bus/Highways/Puhmaa

National roads usually have 1- or 2-digit numbers. There are only a few numbers over 100. Higher numbers tend to appear in clusters, but there is no clear zone system. For example, the numbers 89 - 96 and 99 are all close together in the south of Johor, but 87, 88 and 98 are in Pahang. Odd numbers are often used for north-south routes and even numbers for east-west routes (this holds for main roads 1, 2, 3, 4 and 5), but there are too many exceptions for this to be considered a rule.