This north-south road is an important transit road connecting Tehran

Tehran

Tehran , sometimes spelled Teheran, is the capital of Iran and Tehran Province. With an estimated population of 8,429,807; it is also Iran's largest urban area and city, one of the largest cities in Western Asia, and is the world's 19th largest city.In the 20th century, Tehran was subject to...

 to Fars.

Abadeh-Shiraz

Saadatshahr Tunnel located between Saadatshahr and Qaderabad will be closed for repairs and lighting related works from 22th of November 2011 to mid-February 2012.

Firouzabad-Jam-Asaluyeh

There are plans to build another 2 lanes and make the road a 4 lane expressway.