Paul Walker Death -- Fan Tributes Moved From Crash Site

The crash site where Paul Walker and Roger Rodas died has become so cluttered with fan memorabilia ... the city has cleared the area and will begin cracking down on looky-loos who come to visit ... TMZ has learned.

Reps for the city of Santa Clarita tell us ... the flowers, candles, posters, and other tributes -- not to mention all the trash -- that have been left at the crash site by fans paying their respects had piled up in the street and created a road hazard.

We're told city crews have not thrown anything away ... but they've moved all of the items off the street and onto the sidewalk ... and they've invited the Walker and Rodas families to take away anything they'd like to keep.

Also ... we've learned that starting today the city will be enforcing NO parking on the street near the scene of the crash ... handing out tickets to violators.