information:highlighting, linguistic:translation
The Tehran Metro is a rapid transit system serving Tehran, the capital of Iran. It is the largest metro system in the Middle East. The system is owned and operated by Tehran Urban and Suburban Railway. It consists of six operational metro lines, with construction under way on seven lines including northwestern extension of line 4, south extension line 6, northwestern and east extension line 7, east extension line 2 and Line 10, Line 8 and 9. The Tehran Metro carries more than 3 million passengers a day. In 2018, 820 million trips were made on Tehran Metro. As of December 2023, the total system is 292.1 kilometers (181.5 mi) long, 224.6 kilometers (139.6 mi) of which is metro-grade rail. It is planned to have a length of 430 kilometers (270 mi) with eleven lines once all construction is complete by 2040. On all days of the week, the Metro service runs from 04:30 to 22:00. The line uses standard gauge and is mostly underground. Ticket price is 5,300 Iranian Toman for each journey, regardless of the distance traveled, but using prepaid tickets costs much less. Seniors may travel for free on the metro. On all Tehran metro trains the first and half of the second carriages from each end are reserved for women. Women can still ride other cars freely.