Traffic is a noun - the plural form is still 'traffic' (no 's' on the end). "There is a lot of traffic on the road."
The plural form of traffic rule is traffic rules.
Traffic is a mass noun, it has no plural form.
The plural possessive form of "road" is "roads'".
The uncountable noun 'traffic' is treated as a singular form; for example:The traffic is heavy at this time of day.The traffic in cute kitten videos just grows and grows.
The correct plural possessive form of "day" is "days'".
The plural possessive form of "humanity" is "humanities'".
The form villager's is the possessive form of the singular noun villager.The plural form of the noun villager is villagers.The plural possessive form is villagers'.Example: The villagers' decision was to fund a traffic light for Main Street.
Road as a plural is roads.
The plural of road is roads
Road is a noun. Roads is the plural form of road. Roads is a plural noun. All the roads out of town are busy.
There is no plural past tense of road. Road is a noun, not a verb.
The drivers of the vehicles comprising the traffic on the road guide this traffic, as the laws/rules of the road dictate.