Kajang SILK Highway has taken land mobility to an entirely new spectrum for the Kajang region. The 37km, 3-lane dual carriageway highway reduces traveling time between the North and South of Kajang through its 12 interchanges. It also makes to and from Kuala Lumpur, Cheras, Sg. Long, Balakong, Putrajaya, Semenyih, Bangi, KL International airports and Seremban most convenient. The highway is well-equipped with state-of-the-art facilities while all four (4) of SILK’s open system toll plazas are located at Sungai Balak, Sungai Ramal, Bukit Kajang dan Sungai Long.

Its main focus is to alleviate daily traffic congestions in densely populated Kajang and its vicinity. SILK’s connectivity extends beyond the region through direct links to:

• KL-Seremban Highway (NSE)
• Sungai Besi Highway (BESRAYA)
• Cheras-Kajang Highway (Grand Saga)
• Kajang-Seremban Highway (LEKAS)
• South Klang Valley Expressway (SKVE)

As SILK becomes an important route for Kajang road users, PROLINTAS has implemented various strategies to continually develop the highway, and improve traffic flow and maintenance systems to meet their needs.


Constant and consistent maintenance of the highway is carried out to provide motorists with the best driving experience we can offer. Maintenance activities include inspections at various key areas such as the expansion of joints, piers, generator set, Automatic Lane Barrier (ALB), road conditions, street lighting as well as landscaping upkeep.

New Features

Most recently, SILK offers self-service kiosks for reload purposes at all its Customer Service Centre, in an effort to go cashless.

In ensuring a better traffic flow, SILK has upgraded its route from UPM to UNITEN. The route no has 3 lanes instead of 2 lanes per carriageway.

The highway had also launched the Kajang Utama interchanges thus opening up another access route to the highway.

Systems and Certifications

SILK has received the ISO9001:2015 Quality Management System, ISO14001:2015 Environmental Management System, ISO45001:2018 Occupational Health and Safety Management System, and ISO39001:2012 Road Traffic Safety (RTS) Management System certifications.


Facilities at SILK:

Fully Electronic Toll Collection (ETC) enabled lanes comprising of multi-class lanes, Touch ‘n Go lanes, SmartTag lanes and a dedicated RFID lane

24/7 Touch ‘n Go Reload Kiosks are available at the Customer Service Centres

Customer Service Centres for reloading and other transactions are open from 7am – 7pm on Mondays to Fridays, and 8am – 1pm on Saturdays. The centres close on Sundays and Public Holidays

24/7 Traffic Monitoring Centre

6 Variable Message Signs (VMS) for public announcements

31 Close Circuit Televisions (CCTV) to monitor road and safety conditions

24/7 hotline

24/7 PERONDA team

24/7 mobile app with real-time SOS functions

4 lay-bys

Pedestrian bridges