Malaysia Federal Route 1 (Sarawak)
The Sarawak section of the Federal Route 1, Asian Highway Route AH 150, also known as Pan Borneo Highway Sarawak or Sarawak First Trunk Road, is a 1077-km federal highway in Sarawak, Malaysia, making the highway as the longest component of the Malaysian portion of the larger Pan Borneo Highway network. Construction of the highway began in 1965 after Sarawak became a member of the federation of Malaysia in 1963. The combined length of the Pan Borneo Highway Sarawak and its Sabahan counterpart forms the longest federal highway in Malaysia, with the total length of 1,503 km. The Pan Borneo Highway Sarawak is notable for having three separate segments, sandwiched by two segments of Bruneian Pan-Borneo Highway. The Federal Route 1 was built in sections, comprising 92 sections altogether. Generally, all other federal and state highways in Sarawak serve as tributaries of the Federal Route 1. The highway is the only east-west oriented highway in Sarawak and links most of the division capitals in Sarawak except Kapit and Mukah. The sections from Miri to Limbang and to Lawas are connected by Brunei highway networks. At the Sarawak-Sabah border at Merapok, motorists must pass an immigration checkpoint to enter Sabah and