First phase of this project was construction of Aminhozur three-way to Shahrivar 17th street which was earlier done by Keyson company. The next proposed plan to solve the traffic problems in that district was included a short tunnel to pass under the Shahrivar 17th street and go to Shekoufeh square. After the study phase was done this plan was stopped although it was under the construction. The main reason was announced to dispatching traffic to that area through that tunnel that exceeds its capacity.
On the other hand Imam Ali highway was under the construction and it could be a suitable way to access the downtown and dispatching the traffic.
The whole story led to the current plan of Amirkabir Tunnel and Underpass.