Why did wealthy residents move from central Lima to Miraflores in the 19th century?

In the mid-19th century, the development of interurban railway and tramline links provided the opportunity for suburban growth in Lima, allowing the city to expand beyond its old colonial walls.12

As these transportation networks were established, the city’s wealthier residents began to move away from the small, compact, and pedestrian-oriented center. By building mansions in and around Miraflores, these residents sought to physically distance themselves from the lower classes.2