I noticed the city has installed these sidewalk ramp bumps known as truncated domes. From what I can google it is to make the sidewalks wheelchair accessible and assist people with disabilities. Apparently they are quite expensive and so may cause some controversy.
I found this Philadelphia article from 2012 that says each ramp costs $7500 or $60,000 per intersection or $858 million for that city. I also read some articles where people find them helpful and some where they do not. I can certainly understand how it could help a blind person.
