Touch 'n Go is a contactless smart card system used for electronic payments in Malaysia. The system was introduced in 1997 and is widely used for toll payments on highways, public transportation, parking, and other services. The card is equipped with a radio-frequency identification (RFID) chip that allows users to make payments by simply tapping the card on a reader device. Touch 'n Go cards can be reloaded with funds either online or at designated reload kiosks. The system has become a popular and convenient way for Malaysians to make cashless transactions.

The North–South Expressway Northern Route is an interstate controlled-access highway running parallel to the northwestern coast of Peninsular Malaysia. The 460-kilometre (290-mile) expressway forms the north section of the North–South Expressway, passing through the northwestern states of Kedah, Penang, Perak and Selangor. The expressway begins at the Bukit Kayu Hitam checkpoint in Kedah, where the Malaysia–Thailand border lies, and ends at Bukit Lanjan in Selangor state where the expressway interchanges with the New Klang Valley Expressway. The expressway is operated by PLUS Expressways.