Public transit in Asia

• Orange Line, KMRT, Kaohsiung, Taiwan
• Imazatosuji Line , Japan
• Seoul Subway Line 3, South Korea
• MTR Tung Chung Line, Hong Kong, China
• Line 7, Shanghai Metro, Shanghai, China
• Tokyo Metro Ginza Line, Tokyo, Japan

Public transit in Europe

• Barcelona metro line 9, Barcelona, Spain
• Helsinki Metro, Helsinki, Finland
• East London Line, London, England
• Lyon Metro Line C, Lyon, France
• Line 7 , Madrid, Spain
• Pravoberezhnaya Line, Saint Petersburg Metro

Public transit in North America

• Northeast-South Line, Atlanta, Georgia
• Orange Line , Boston, Massachusetts
• Orange Line , Chicago, Illinois
• The Orange Line , a planned line in Dallas, Texas
• C Line , Denver, Colorado
• LACMTA Orange Line, Los Angeles, California (busway)
• Orange Line , Miami, Florida
• Line 2 Orange , Montreal, Quebec
• IND Sixth Avenue Line, New York City
• Broad Street Line, Philadelphia, Pennsylvania
• MAX Orange Line, a planned light rail line in Portland, Oregon
• San Diego Trolley, San Diego, California
• Richmond - Fremont Line, San Francisco Bay Area, California
• Viva Orange, York Region, Ontario, Canada
• Orange Line , Washington, DC
• Orangeline, a proposed Maglev system in Santa Clara, California