Traffic slowed on key expressways nationwide by noon, with PLUS, KLK and Johor-Singapore Causeway facing delays as smart lanes activated.

KUALA LUMPUR: Traffic flow on several major expressways across the country began to slow by midday today.

A spokeswoman for the Malaysian Highway Authority (LLM) attributed the congestion to rising vehicle volumes.

Northbound traffic on the PLUS highway was moving slowly from Perai to Juru.

Delays were also reported from Sungai Perak to the Meru Tunnel and from Gopeng to Tapah.

“Traffic is also slowing northbound from Senawang to Port Dickson,” the spokeswoman said.

On the Kuala Lumpur-Karak Expressway, westbound traffic was building up from Bentong to Lentang.

Congestion was also reported from Lentang to Bukit Tinggi on the same route.

Meanwhile, southbound traffic on the Johor-Singapore Causeway was slowing.

The delays stretched from the Sultan Iskandar CIQ Complex in Johor Bahru to the Woodlands CIQ in Singapore.

A total of 32 smart lanes were activated along the PLUS highway today to help ease congestion.

Motorists can obtain the latest traffic updates via the 24-hour hotline 1-800-88-7752.

Updates are also available through the X accounts @plustrafik and @llmtrafik.

 The Sun Malaysia