Is it necessary to have any yellow industrial at all? Or can I swap them out with the cyan building that do not pollute? Will not having yellow have a negative affect on my city?
Cyan industry (offices) require more educated workers and don't produce any kind of pollution. The downside to replacing most of your industry with it is that you would have to import nearly everything. But Yellow Industry (factories) don't require any educated workers. Normal generic industry manufacture goods that are ready to be sold to commercial (or exported). Any type of industry specialisation (ore, farming, oil) produces raw resources. The raw resources get sent to the generic industrial buildings (or exported if there aren't any buildings to send it to). So, generic industry produces sellable goods from raw products, while specialised industry produce raw resources.
Sorry, you're wrong.well i think he might have meant that in terms of more educated. Offices require mostly university graduates, and even level 3 industries do not require any university graduates, only large amount of high school graduates iirc.
As noted above, you are in fact wrong:well i think he might have meant that in terms of more educated. Offices require mostly university graduates, and even level 3 industries do not require any university graduates, only large amount of high school graduates iirc.
That might be true logically, but the demand indicator classes them as one.
best way to check what you need is look at imports, if commercial are importing goods then thats when you should zone industrial is not zone offices, at least thats how i decideI think the reason that offices and industry are classed as one in because you create them, mostly, for jobs. Industry does produce freight, but the main reason you zone it is to make jobs for people.
Though, I think they should still be separate categories because when your industrial demand is up, it's hard to tell if you need offices or industry.