"Travel" is generally considered an uncountable noun when referring to the concept of traveling in general or the activity itself. For example, one might say, "Travel broadens the mind." However, it can be countable when referring to specific trips or journeys, as in "I took three travels this year." In most contexts, though, it is treated as uncountable.
Transport is both countable and uncountable as a noun.
countable
uncountable
Uncountable
uncountable
The gerund painting is a countable noun, as in "There are 12 paintings in this room."
few is countable
countable
Countable
The noun 'steel' is an uncountable (mass) noun, a word for a substance.
he asked me if the word fire wood countable or uncountable?
Pasta is a countable noun