Why does this street BLOCK off Arby’s (but not McDonald’s)?

Raised medians reduce left turns which prevents crashes (and saves lives). But cities only block left turns for some businesses and not others. How can the engineers decide fairly? And what do we do with drivers who still need to turn left?

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Additional reading:
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Federal Highway Administration. https://safety.fhwa.dot.gov/saferjourney1/library/countermeasures/16.htm. Accessed Jun. 9, 2021.