Batu TigaâÂÂSungai Buloh Highway, Selangor State Route B9, also known as Jalan Hospital, Jalan Subang, Persiaran Gerbang Utama, Persiaran Tebar Layar and Jalan Monfort, is the main highway in Klang Valley, Malaysia connects from Batu Tiga Interchange in Batu Tiga to Sungai Buloh Hospital in Sungai Buloh. The highway overlaps with a few roads with the same name but different code: FT15 and FT3214. At the Politeknik Junction, it extends towards the eastern side of Shah Alam which is the Persiaran Sukan. The Persiaran Sukan is basically a ring road that covers the eastern side of Shah Alam with some one-way road. The highway was upgraded in 2008.
The Kilometre Zero of the Batu TigaâÂÂSungai Buloh Highway starts at a few locations. The Main Link Kilometre starts at Hospital Sungai Buloh Junction Exit B901. The Jalan Monfort Kilometre starts at Politeknik Junction Exit B918, and the Persiaran Sukan Kilometre starts at the Stadium Interchange Exit B924.
To solve the traffic jam in local government administrative area, the Selangor government take the initiative to upgrade the existing roads, include upgrade Route B9/FT15 from Subang Airport to Sungai Buloh Hospital, upgrade Jalan Monfort B9 from Politeknik Shah Alam Junction.
Until 15 June 2024, the progress of new road construction from Sungai Buloh Hospital to Kampung Seri Indah A is 78.91% and expected completed on 9 September 2024.
At most sections, the State Route B9 was built under the JKR R5 road standard, with a speed limit of 90 km/h.
The entire route is located in Petaling District, Selangor.