With less than two weeks until the Formula One Grand Prix takes over the Las Vegas Strip, infrastructure that turns one of the world’s most famous streets into a racetrack continues to pop up — to the chagrin of some tourists.

Security barriers for pedestrian spots appear to be beefed up from the inaugural race last November. Then, officials used a wraplike screen adhered onto the glass panes of pedestrian bridges to avoid gawkers blocking the walking flow of traffic during the race. But some tourists quickly took matters into their own hands, tearing some down weeks before the race.