This morning, a first draft of Lance Wyman’s redesign of the iconic Metrorail map began to make the rounds. But it was missing one key aspect: a detailed depiction of the extension to Dulles International Airport.

Last weekend, we tried to glean some hints about the redesigned Metrorail map from this Washington Post profile of Lance Wyman. Wyman ended up dropping a few more hints in a follow-up chat earlier this week.

The Post’s Dana Hedgpeth provides us with this very interesting long read about Lance Wyman, the 73-year-old graphic designer who originally designed Metro’s iconic rail map and is taking on the challenge once again.