Vehicle plows into crowd on Bourbon St., with 14 fatalities

Even if they put bollards at each block, he could have probably still gone around on the sidewalk.

Clearly any sidewalk barrier needs space for pedestrians and wheelchairs, etc.
Right, because the barriers aren't necessarily because of the worry of someone barreling down the street, they're really just to prevent the regular traffic flow through that area that is allowed at other times. No, no, no, you can't come down this street.