Jay H. Walder, chairman and chief executive officer of the New York Metropolitan Transportation Authority (MTA), has joined the APTA Executive Committee, which approved his appointment as a member-at-large to fill the remainder of Christopher Boylan's one-and-a-half-year term.

Boylan retired from MTA last December, and subsequently resigned from the Executive Committee.

"I am very pleased to welcome Jay Walder, who brings extensive experience and expertise in the public transportation field, to the Executive Committee," said APTA Chair Michael J. Scanlon. "At the same time, I want to thank Chris Boylan for his decades of commitment to our industry. We look forward to his continued involvement."

Walder had worked for MTA from 1983 to 1995 before returning in 2009 to head the agency.

He also served five years as managing director for finance and development with Transport for London.