The Bukit Timah Expressway AH2 (abbreviation: BKE; Chinese: 武吉知马高速公路; pinyin: Wǔjízhīmǎ Gāosù Gōnglù; Tamil: புக்கிட் தீமா விரைவுச்சாலை; Malay: Lebuhraya Bukit Timah) is a highway in Singapore that starts at the Pan Island Expressway in Bukit Timah and travels north to the Woodlands Checkpoint and the Johor–Singapore Causeway.