How did the influx of immigrants affect cities?

A: The influx of immigrants led architects to develop new approaches to housing and transporting large numbers of people. This resulted in the development of skyscrapers, horsecars, cable cars, and electric trolley cars. Because congestion was so bad in the largest cities, engineers were also led to look for ways to move mass transit off the streets. Chicago responded by building an elevated railroad, while Boston, followed by New York, built American's first subway systems. The influx of immigrants did not only have positive effects on cities, however. Sanitation conditions of major cities became inadequate because cities were simply unable to keep up with the influx of immigrants. These cities also became overpopulated.

How will you correct the word in bold?

"American's first subway systems"

How can you rephrase this: "...did not only have ..."

The influx of immigrants had both positive and negative effects on cities. To understand how it affected cities, we need to consider the various aspects such as architecture, transportation, sanitation, and population.

1. Architecture: The influx of immigrants necessitated the development of new approaches to housing large numbers of people. As cities became more crowded, architects began designing taller buildings to accommodate the growing population. This led to the construction of skyscrapers that maximized the use of limited space.

2. Transportation: With the increasing number of people in cities, transportation became a significant challenge. To address this, cities introduced new modes of transportation. Horsecars, cable cars, and electric trolley cars were developed to efficiently transport large numbers of people around the city. Additionally, the need to alleviate congestion led to the construction of elevated railroads and subway systems.

3. Sanitation: One of the negative impacts of the influx of immigrants was the strain it put on sanitation systems. The increasing population overwhelmed the existing infrastructure, resulting in inadequate sanitation conditions. Cities struggled to keep up with the demand for sufficient waste disposal and clean water supply, leading to outbreaks of diseases.

4. Overpopulation: The influx of immigrants significantly contributed to the overpopulation of cities. As more people migrated to urban areas, the population density increased, placing additional pressure on resources and services. Overcrowding led to issues such as housing shortages, increased competition for jobs, and strained public services.

In summary, the influx of immigrants affected cities in various ways. It prompted architects to design taller buildings and led to the development of new transportation systems. However, it also strained sanitation systems and contributed to overpopulation, leading to various challenges for the cities to overcome.