Timeline+of+Tehran's+traffic+plan+zone

 This plan was introduced in 1980. At the beginning of August 1980 the plan was started by creating special routes for public buses in the center of the city. In the October, the single passenger cars were prohibited from travelling in the center of city between 6:30 am and 10:00 am. With the approval of Revolution Council in 1981 a zone in the center of the city was selected as the traffic zone in which the entry of all vehicles except authorized vehicles such as public transportations, emergency medical personnel and public services was banned between 6:30 to 10:00 am on all week days except on Thursdays and Fridays and holidays. All groups should receive license cards and labels. The time limit of travelling in downtown was extended to 12:00 pm. It was also decided that certain individuals and organizations that inevitably have to enter to the traffic zone can enter the zone. These groups were physicians, disabled and some patients, car rental agencies and some private companies. The time limit of travelling in downtown was extended from 6:30 to 3:00 pm. From fall 1984, the time limit decreased to 1:30 pm. For the first time trucks were included in traffic restrictions. In the fall of 1988, trucks which had received one year entry permission label just could enter to the traffic zone. Based on the new legislation approved by high council of traffic, all heavy vehicles were banned from travelling in the traffic zone between 6:00 am and 9:00 pm unless they had license label and card.. In addition to this, veterans and patients with chronic illnesses could travel in the zone. Regardless of restrictions, all government vehicles which has government license plates ( 51, 52 and purple plate) and were introduced by the government offices, the license label was issued. Some changes were made in geographic range and traffic time of the traffic plan zone. The time period was extended to 5:00 pm. The price of entering to the traffic zone increased and the number of permits and licenses decreased to 66000. At this year, the labels for the temporary daily entry of vehicles into the zone were distributed. At this year issuing the labels was controlled by the High Council of Traffic Management in Cities and the staff and functional office of transportation and traffic organization of Tehran municipality. From the late 2000, based on the legislation of high council of traffic management the geographical area of the traffic zone was extended. From mid-December 2005, due to severe air pollution in Tehran, the odd and even regulation was implemented. The plan was active from 6:30 to 7:30 on weekdays and on Thursdays from 6:30 to 1:00. The odd and even regulation on Thursdays was cancelled. <span style="font-family: Garamond,serif; font-size: 12pt;">The odd and even regulation on Thursdays was passed again.
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1981: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1982 : **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1983: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1984: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1988: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1990: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1991: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1992: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1994: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">1996: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">2000: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">2005: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">2006: **
 * <span style="font-family: Garamond,serif; font-size: 12pt;">2007: **