What does the suffix "-gate" mean in English place names?

Road

https://en.wikipedia.org/wiki/List_of_generic_forms_in_place_names_in_the_United_Kingdom_and_Ireland

However, in road names it can mean 'gate'. If it's Northgate etc, it is gate. If it's Bradshawgate, it's road. (If it's in the centre of somewhere that has (Chester) or had walls, -gate is likely to be gate. If it's somewhere rural or only known to be populated by more than a couple of hundred after the Industrial Revolution, it'll be road. Confused? So am I...

BTW, ta for that link. I've been looking for that one....