Why the Broad Street Line is so slow between Walnut-Locust and Lombard-South

 https://www.inquirer.com/transportation/broad-septa-slow-walnut-locust-lombard-south-20240111.html

Philadelphia sure has its share of old & worn lines.

Older train lines must be improved in order to remain efficient.

Thus, a lot of lines or stations around the world require a retrofit.

https://en.wikipedia.org/wiki/Walnut-Locust_station

https://iseptaphilly.com/blog/broadstreetline

https://railroad.net/history-of-the-broad-street-line-t65536-210.html

https://www.nycsubway.org/wiki/SEPTA_Broad_Street_Subway

https://en.wikipedia.org/wiki/Broad_Street_Line#Proposed_extensions

https://www.phila.gov/media/20210222110702/OTIS-Philadelphia-Transit-Plan.pdf

https://www.nycsubway.org/wiki/United_States

https://therabbitportal.blogspot.com/2024/01/metro-and-subway-systems.html