The proposed Coney Island casino would likely clog local roads with heavy traffic and overwhelm public parking, according to documents submitted to the state.

An Environmental Impact Statement included with The Coney’s casino license application shows that the casino, if approved, is expected to bring thousands of cars to the neighborhood every day — more than can be sustained comfortably by existing roads, highways and parking spots.

The Coney — backed by a team of companies including local developer Thor Equities — is one of eight prospects vying for three new Downstate casino licenses. Applicants submitted their materials to the Gaming Facility Location Board in June, and the licenses are expected to be granted by the end of the year.

First, though, each proposal is be

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