A burqa is primarily worn by Muslim women to be in compliance with the Koran.
The Koran broadly states that all men and women should cover themselves and be modest.
Some women follow this by wearing a hijab. Some follow this by wearing a burqa. It really depends on what brand of Islam the woman grew up with and follows today.
So, the answer is to follow the Koran in being modest.
I would say that Plessy v. Ferguson contributed to the Civil Rights movement. This was a court case that ruled that racial segregation in schools was allowed as long as the education for black students was equal to white students. Although this does not seem like a civil rights act, it later lead to Brown v. Board of Education, which ended racial segregation in schools all together.
There was a tremendous lack of space is the answer. In the early city almost all of the open spaces, excluding those in the federal zone, were housing settings. Lack of transportation obligatory people to live close their place of service, occasionally in the same construction.