The Bengaluru Satellite Town Ring Road Project (STRR) is a 288 km expressway that encircles Bengaluru, connecting 12 satellite towns, including Dobbaspet, Doddaballapura, Devanahalli, Hoskote, Sarjapura, Attibele, Anekal, Kanakapura, Ramanagara and Magadi, with an extension to Hosur in Tamil Nadu.