The High Line in New York City is an elevated structure built for freight railroad access to warehouses on Manhattan's west side. It was converted into a park, first opening in 2009, and has become one of the city's top attractions. The structure is narrow and the pedestrian path is very narrow, limiting its options and making it unsuitable for recreation.

The Pierce Elevated is much wider, typically around 100 feet wide. This width provides great flexibility in its use and design, and makes it ideal as a recreation park.

High Line	Pierce Elevated Park
Original use: freight railroad	Original use: freeway
1.45 miles long	1.3 miles long with connection to Buffalo Bayou park
Very narrow pedestrian path	Plenty of space for walking, running and biking paths in both directions
Overcrowded	Plenty of space to accommodate big crowds
Not suitable for recreation	Ideal for recreation
No vehicle access	Easily accomodates vehicles like food trucks, event vehicles and emergency vehicles
Connects to adjacent buildings	Can easily connect to adjacent buildings on the south side, and also to buildings on the north by crossing Pierce Street
Top tourist attraction	Could be an attraction, especially with new development like restaurants and bars