The North–South Expressway northern route, or the Alor Setar–Penang Bridge–Kuala Lumpur Route, designated as expressway and is part of of the Asian Highway Network, is a mostly tolled, interstate controlled-access highway in Peninsular Malaysia. The 460 kilometres expressway forms the north section of the larger 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 where the expressway interchanges with the New Klang Valley Expressway. The expressway is operated by PLUS Expressways.
The expressway runs in a north–south direction close to the northwestern coast of the peninsula, connecting several major towns including Alor Setar, Butterworth, Taiping, Ipoh and Rawang while also providing access to several rural villages on its path.
Coordinates 5°19'54.77" N 100°26'7.954" E