The National Highway Authority (NHA) was established in 1991, through an Act of the Parliament, for planning, development, operation, repair and maintenance of National Highways and Strategic Roads specially entrusted to NHA by the Federal Government or by a Provincial Government or other authority concerned. Total length of the federalized roads under NHA now stands at 11485 KMs, account for 3% of the entire road network and 75% of the commercial road traffic in the country.