Malaysia’s Glow‑In‑The‑Dark Road Paint Shines Briefly Before Cost Halts Project

A pilot program in Selangor has tested road‑marking paint that continues to emit light after sundown, aiming to improve visibility on stretches that lack street lamps. The glowing lines were laid across the junction of Jalan Sungai Lalang and Jalan Sungai Tekali near Semenyih, a spot previously noted for its poor nighttime navigation.

During a site visit, Works Minister Alexander Nanta Linggi observed that the markings retained a noticeable shine for as long as ten hours and that the effect persisted even in wet conditions. The Straits Times highlighted that the area had no street lighting before the trial began.

The experiment quickly ran into a financial hurdle: the photoluminescent paint costs RM749 per square metre, while conventional road‑marking paint is priced at roughly RM40 per square metre. By November 2024, Deputy Works Minister Ahmad Maslan told the Dewan Rakyat that the high price, combined with unsatisfactory test outcomes, made further deployment unlikely.

“The cost is too high, so we are probably not going to continue with the glow‑in‑the‑dark lanes,” Maslan said, adding that the results fell short of ministry expectations.

Initial 245‑Metre Trial Demonstrates Feasibility

The first installation spanned 245 metres and was intended as an alternative to traditional road studs, often called “cats’ eyes.” Officials chose the unlit intersection to gauge the paint’s performance without auxiliary lighting. The Straits Times noted that the stretch had previously been a challenge for drivers after dark.

Even at this early stage, ministry officials were monitoring expenses. Nanta remarked that the project’s overall effectiveness remained under review, especially given the steep material cost.

Public reaction, as reported by The Straits Times, was largely supportive of the concept, with some callers urging wider adoption on rural highways lacking illumination. Others cautioned that authorities should first address existing infrastructure issues such as faded lane markings, inadequate signage, potholes, and uneven surfaces.

Plans for Expanded Pilots in Selangor and Johor

The Semenyih test was not intended to remain isolated. By February 2024, Selangor’s state government announced intentions to roll out the technology to fifteen additional sites, covering roughly fifteen kilometres across districts like Sepang, Kuala Langat and Petaling, according to paultan.org.

Johor also expressed interest, earmarking thirty‑one roads for similar trials, including a 300‑metre segment of Jalan Paloh J16 in Batu Pahat. The state framed the installation as part of a broader effort to enhance driver safety.

Despite the enthusiasm, the price gap remained stark. Nanta’s estimate of RM749 per square metre for the luminous paint translates to almost nineteen times the cost of standard road‑marking paint, a disparity that officials found hard to justify.

Technical Review Fails to Meet Ministry Standards

When Maslan addressed the Dewan Rakyat later in 2024, he linked the decision to halt further rollout directly to the material’s expense and the outcome of internal testing. Although the specific performance metrics were not disclosed, Maslan emphasized that the ministry’s experts deemed the results unsatisfactory.

The combination of high unit costs and the lack of a convincing technical outcome meant that the broader expansion plans for Selangor and Johor lost governmental backing. While the trial demonstrated that the paint could remain luminous for several hours on an unlit road—even in rain—the ministry concluded that the financial and performance drawbacks outweighed the potential benefits.