Southern Tagalog Arterial Road (STAR Tollway) (R-3)

The Southern Tagalog Arterial Road (STAR),[a] commonly known as the STAR Tollway, is a two-to-four-lane 41.9-kilometer (26.0 mi) controlled-access toll expressway in the province of Batangas in the Philippines. It is operated by STAR Infrastructure Development Corporation (STAR – IDC). The expressway is signed as E2 of the Philippine expressway network, alongside the South Luzon Expressway and unspecified portions of the Skyway. The expressway starts at the interchange with the Pan-Philippine Highway and the South Luzon Expressway in Santo Tomas and runs southward, near Diversion Road, to Batangas City. It passes through the cities and municipalities of Tanauan, Malvar, Lipa, San Jose, and Ibaan.

The expressway was opened on 2001, with its first segment built between Santo Tomas and Lipa. In 2008, it was extended toward Batangas City, and in June 2010, the South Luzon Expressway was connected to the STAR Tollway, further shortening travel time between Manila and Batangas.

With increasing traffic demand in the Batangas City – Bauan area and the Batangas Bay area, proposals to extend the expressway are laid out to decongest the existing routes through those areas. Two projects are proposed to extend the expressway to barangay Pinamucan, within Batangas City, and to the municipality of Bauan. The STAR Tollway is separate from the SLEX network despite being connected with SLEX since June 2010.