Published by Neo Han Shern · 11 August 2026
JKR road lighting and DIALux: preparing a stronger Malaysian streetlight submission
How DIALux supports road-lighting calculations for Malaysian projects that refer to JKR requirements—and why the project brief, lighting class and current specification still matter.
DIALux supports the calculation, not the approval
For road and streetlight work, DIALux can model the road geometry, selected luminaire, pole arrangement and defined evaluation fields. The result is a clear calculation record for reviewing illuminance or luminance, uniformity, glare-related measures and the agreed design assumptions.
A calculation is not by itself a JKR approval or a substitute for the full contract, authority and engineering requirements. The relevant tender documents, project specification and latest applicable standard must always be checked for the individual job.
Why JKR appears in a road-lighting brief
JKR road-lighting publications connect lighting design to defined road-lighting classes, maintenance factors, road geometry and installation requirements. Older JKR L-S20 LED road-lighting addendum material specifically calls for computer lighting-level simulation using internationally recognised software, with DIALux listed as an example, in accordance with the required design criteria and lighting class.
That makes a disciplined DIALux model valuable: every result should be traceable to the road profile, luminaire photometry, mounting height, overhang, setback, spacing and maintenance assumptions supplied for the project.
A practical submission checklist
Begin with the road plan and cross-section, lane and footpath dimensions, surface type, pole arrangement, mounting height, arm length, overhang, setback, selected luminaire data and requested road-lighting class. Record any project-specific maintenance factor and authority requirements before the calculation is issued.
For JKR-related work, confirm the latest project specification directly with the responsible consultant, contractor or authority. Requirements can differ by scope and be updated over time.
Frequently asked questions
Can DIALux be used for JKR road-lighting calculations?
DIALux is an internationally recognised lighting-design tool and has been referenced as an example in JKR road-lighting specification material. The calculation must still follow the current project requirements, agreed lighting class and applicable standards.
Does a DIALux report guarantee JKR compliance?
No. A DIALux report documents the model and calculation results. Compliance or approval depends on the complete design, products, installation, current authority requirements and formal review process.