Railway lines opened in 1991

metro system

Metrorrey, officially Sistema de Transporte Colectivo Metrorrey, is a rapid transit system that serves the metropolitan area of Monterrey. It is operated by the Sistema de Transporte Colectivo Metrorrey, which is part of the decentralized public administration of Nuevo León. In 2022, it was the sixth largest metro system in North America by ridership.

metro line in Tokyo, Japan

Orlyval () is a light metro shuttle service at Paris's Orly Airport using the Véhicule Automatique Léger (VAL, English: automatic light vehicle) driverless, rubber-tyred people mover technology. The line, which opened on 2 October 1991, offers free service between the two airport terminal stations, and premium fare service to Antony station, where passengers can connect to the city's RER B trains. Orlyval is the second line to use the VAL technology after the Lille Metro and the first airport people mover system to use VAL.

metro line in Tokyo, Japan

Washington Metro rapid transit line

metro line in Vienna

line of the São Paulo Metro

Train route in Lyon, France

railway Line

metro line in Mexico City

railway line in Aichi prefecture, Japan

Metro line in Lausanne, Switzerland

thumb|250px|Peachliner train (2006) thumb|250px|Interior of a Peachliner train (2006) The Peachliner, formally the was a people mover in the city of Komaki, Aichi Prefecture, Japan. It was operated by the company Tokadai New Transit from 1991 until September 30, 2006, when it became the first people-mover system in Japan to cease operations. It was then dismantled in 2023.

railway line in Hyogo prefecture, Japan

defunct railway line in Taichung, Taiwan