Massachusetts Bay Transportation Authority
“Taking the T” has become part of the everyday parlance of the people of Boston and its surrounding communities. But when in the 1960s the idea was developed, it was an unorthodox one, but one appropriate for a rapidly expanding and diversified transportation network.
The design of the T symbol was the first part of an extensive graphics program aimed at making the entire transit system, and the city, more legible and comprehensive
source: https://www.cghnyc.com/work/project/massachusetts-bay-transportation-authority
