Effect of subway stations on the peripheral streets

Tehran as a metropolitan is faced with numerous traffic difficulties. One of the proposed solutions is building subway transit lines. Subway stations have some side effects on the peripheral streets, including taxi and private car parking violations around the stations’ entries. In this research, the effect of subway stations on the traffic of peripheral streets is studied. As a case study, one of the subway stations near the Tehran’s emporium is studied. Field study is used for completing the researcher made questionnaire. Three samples are questioned including taxi drives, passengers and police officers. It has been shown that presence of taxis and car parking near the subway station entries has a negative effect on the peripheral streets; but none of these factors has an effect of more than 50 percent. In addition, according to the questioned persons, it is better that subway station entries to be in minor streets to avoid traffic congestion in the peripheral streets. In this research, it is shown that taxi drivers try to near the entry of stations as much as they could for taking the passengers up. Most of the subway passengers use taxis for continuing their trip.