Islamabad-Rawalpindi metropolitan area the larger metropolitan area. It uses dedicated bus lanes for all of its route covering 24 bus stations. As Pakistan's capital city, Islamabad serves as the seat of the federal government and is the country's political center. Rawalpindi has remained important historically, as it hosts the headquarters of Pakistan's army. Rawalpindi also temporarily served as the federal capital when Islamabad was being built in the 1960s, to replace Karachi as the capital. Islamabad-Rawalpindi metropolitan area The Islamabad-Rawalpindi metropolitan area is Pakistan's third most populous metropolitan area. It consists principally of the twin cities of Islamabad and Rawalpindi, along with smaller
Islamabad is home to twenty universities, including the Quaid-e-Azam University, PIEAS, COMSATS Institute of Information Technology and NUST. The city is one of the safest in Pakistan, and has an expansive surveillance system with 1,900 CCTV cameras. The name of the city, "Islamabad", is derived from two words, "Islam" and "abad", meaning "City of Islam". "Islam" is an Arabic word which refers to the religion of Islam and "-abad" is a Persian suffix indicating an "inhabited place" or "city". Islamabad Capital Territory, located on the Pothohar Plateau of the Punjab region, is considered one of the earliest sites of human settlement