What's the plural form of pedestrianization? Here's the word you're looking for.
Answer
The noun pedestrianization can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be pedestrianization.
However, in more specific contexts, the plural form can also be pedestrianizations e.g. in reference to various types of pedestrianizations
or a collection of pedestrianizations.