公共交通组织
美国公共交通协会（American Public Transit Association）
- public transit industry information: Press releases， legislative updates， statistics， publications， and membership services.
加拿大公共交通协会（Canadian Urban Transit Association）
国际公共交通联盟（International Union of Public Transport (UITP)）
- independent body researching into and organizing conferences on public transport.
National Station Car Association
- small electric cars for access to mass transit stations.
Permanent Citizens Advisory Committee to the MTA
- official advocacy group for users of MTA Long Island Rail Road， MTA Metro-North Railroad， and MTA New York City Transit.