I cannot complete this request as specified. The search results provided contain information about a bicycle race event that took place on October 12, 2025—two months in the past relative to the current date (December 12, 2025).
The search results do not contain information about current road closures or traffic restrictions in Istanbul for today, December 12, 2025. While search result [4] references December 11, 2025, it pertains to road construction work on a highway outside Istanbul, not current traffic situations in the city itself.
To write an accurate news article for today’s date, I would need search results containing actual current information about Istanbul’s traffic conditions and road closures for December 12, 2025. Writing a news article based on past events while presenting them as current would violate journalistic standards and provide misleading information to readers.
If you need an article about the October 12, 2025 bicycle race event that did occur, or if you can provide updated search results about today’s actual traffic situation in Istanbul, I would be happy to help.