Road network in Tamil Nadu June 2018, Tamil Nadu's road network has a total road length of . Tamil Nadu has about of highways which is designated as "National Highways" and "State Highways" on the basis of traffic intensity and connectivity. The various types of roads and their lengths are given below: Road stretches which have heavy traffic intensity of more than 30,000 Passenger Car Units (PCUs) connecting different state capitals, major ports, large industrial areas and tourist centers are designated National Highway by Government of India. In Tamil Nadu, "National Highways Wing" of Highways & Minor Ports Department was established in the year 1971
Archerfield Second World War Igloos Complex which occurred at, the site during the Second World War. The igloo complex is also a highly intact group of timber truss igloo structures, which demonstrate the principal characteristics of this type of structure, and represent a significant advancement in timber technology and construction achieved during the Second World War which enabled long span lightweight structures using hand nailed timber in small sectional chord sizes to be erected quickly and at low cost. It has been noted in a study of prefabricated Second World War structures that the Archerfield Second World War Igloos are among the longest clear span buildings