Architecture firm BIG has revised its proposal for a new baseball stadium in Oakland, California, into a "more circular shape" with a gently sloped park on top.
The updates come just months after the firm first revealed its plans for the new home of the Oakland Athletics Major League Baseball (MLB) team ? also known as the Oakland A's ? at the city's harbourside Howard Terminal.
Among the main revisions to BIG's original design is the layout of the stadium seating for 27,000, which has been adapted from an angular formation into a rounded shape.

"One key update to our design: a more circular shape," said a statement from The A's.
The team added that the revised shape would offer a number of "benefits over the initial concepts". These include a "more seamless, efficient, and fluid access to the ballpark from the surrounding neighbourhood", as well as "better ability to capture fan-energy inside the ballpark for a more exciting and intimate experience". Helping to offer a better view of the waterfront beyond, the grassy park on the roof has also been redesigned.

Complete with trees and a winding pathway, the elevated park was intended to provide standing space for 10,000 additional fans, and meet the ground at the waterfront.
While still featured in the new renderings, the roof is much more gently sloped and the rounded coves on top no longer appear.

Exterior cladding is also different from the original scheme, released in...