Louisiana passed the seperated car act, segregating black and white passengers. A black passenger, Plessy, sat in the white section and was taken to court for not sitting in his designated section. He argued that separating people by race violated the 13th and 14th amendment. However, on June 7th, 1892, the Supreme Court said this separation is legal, because they're "seperate but equal". The goal of this ruling was to keep both races equal, but not have them mix together and use the same facilities. It affected African Americans by not allowing them to have some of the privileges white people had, because often times the white sections were better quality than the black sections. This doesn't help integration by not letting them integrate. If they aren't even around one another, and legally aren't allowed to, there's no integration, only separation.
Wormser, Richard. "Plessy v. Ferguson." PBS. PBS, n.d. Web. 04 June 2014.
Wormser, Richard. "Plessy v. Ferguson." PBS. PBS, n.d. Web. 04 June 2014.
These are all examples of segregation after the ruling "seperate but equal" was enforced. African Americans couldn't even use the same waiting rooms as white people.