Filed under: Cleaner? By Molly Webb May 1, 2014, 6:13pm EDT The Citypaper looked into why Philly's streets aren't as clean as they could be, and found that, while mechanical street sweeping would be relatively inexpensive, logistical issues like convincing people to park on one side of the road on street cleaning days are making it hard to get Philly clean. [Citypaper]