Industrial Parks, Business Parks, Office Parks, both Light or Heavy Industry have a purpose, having a designated zone for businesses that major in manufacturing, distribution, logistics, and company storage just off the outskirts of the city and mass residential area, these industrial parks are also usually next or near to major transport methods such as Highways, Railways, and Port of Entry (401, FDOT - FRA, Port of Firestone, & FIA).
With the addition of Industrial Parks existing or future businesses that wish to major in manufacturing, distribution, and/or logistics can now have a hub to make it’s company in a more professional fashion to meet its supply and demand.
Adding on, a building/tower to house corporate offices can also exist to house administration.
No, I never even played LC nor did I knew LC had a Industrial Park, I get my ideas from something I see IRL that can/could be helpful, if it just happen to be in another game such as you say Liberty County understand that they took ideas from irl too.
LCER or not I never took the idea from them, I just happen to drive by one on the interstate last week which was next to both a international airport and international intermodal and a railroad junction