Tokyo must act now to develop a vision for the new National Stadium and other Olympic venues that reaches decades beyond the 2020 Games.

That's the advice of David Edmonds, chairman of London Legacy Development Corp. (LLDC), a public body responsible for the development and management of the 225-hectare complex that hosted the 2012 London Olympics.

"Think early, make decisions knowing that this is going to stick for 20, 30, 40 years, and try to build a stadium that has a long-term use," Edmonds told The Japan Times in a telephone interview.