Turn your road cross-section, pole layout and lighting criteria into a coordinated lighting proposal. Sunlurio supports EPC and consultant teams with optic selection, DIALux review and matched engineering documents.
Start with the geometry. Compare the lighting result. Specify the complete system.
| Best fit | Bring these decisions into engineering review |
|---|---|
| New roads or defined road sections | Compare pole arrangements against the carriageway, median, shoulders and pedestrian areas. |
| Tender or consultant-led projects | Translate the specified lighting criteria into a model, optic, layout and document schedule. |
| Existing poles or uncertain spacing | Test the retained geometry before committing to a replacement luminaire or wattage. |
Changing an optic or mounting position can change the result as much as changing power. Geometry and the lighting target therefore come before final product selection.
| Input group | What to send | Why it matters |
|---|---|---|
| Road geometry | Country/site, road width, lanes, median, shoulders, footpaths and cross-section | Defines the calculation areas and the surfaces the light must reach. |
| Pole and bracket layout | Pole positions, height, spacing, outreach, setback, tilt and arrangement | Sets the relationship between the optic and the road. |
| Lighting criteria | Tender or consultant criteria, maintained illuminance or luminance basis, uniformity and glare limits | Provides the basis for comparing layouts and acceptance. |
| Power and operation | Grid supply or solar resource, hours, dimming, controls and solar autonomy | Connects the lighting load to the electrical or energy system. |
| Site and procurement | Wind/corrosion exposure, foundation information, CAD plan, BOQ and document schedule | Identifies structural interfaces and tender gaps early. |
A preliminary review can start with the files you have. Missing dimensions and assumptions must be resolved before a project-specific calculation or final configuration is issued.
Single-side, opposite, staggered and median layouts are starting arrangements—not spacing rules. The useful comparison is how each arrangement performs with the actual road cross-section and selected optic.
Single-side: check reach across the carriageway and the far edge. Opposite: compare the symmetric layout with its additional poles and civil works. Staggered: examine transitions and uniformity between sides. Median: coordinate twin arms, maintenance access and structural loading.
Mounting height changes the distribution footprint; spacing changes the overlap between luminaires. Outreach and setback shift that footprint relative to the road. A change to one dimension calls for a fresh check of the complete layout.
Type II and Type III distributions are options on appropriate models. The beam pattern, exact luminaire and IES/LDT revision must match. A file from another optic or BOM cannot establish the proposed result.
Average illuminance can conceal dark areas. Review maintained values, uniformity, glare and the maintenance factor on the agreed calculation areas before choosing a layout.
| Path | When it fits | Inputs that change the decision |
|---|---|---|
| AC LED | A usable grid connection or retained electrical infrastructure | Supply voltage, cabling, cabinets, surge protection, earthing and pole interfaces. |
| Solar | A road where a standalone energy system is appropriate | Local solar resource, shading, runtime, dimming, autonomy, battery/PV sizing and pole loading. |
| Smart controls | A defined need for scheduling, monitoring or fault information | Driver/controller compatibility, network, platform scope, commissioning and O&M ownership. |
| Hybrid / retrofit | A project combining retained assets with a justified power strategy | Condition of existing assets, electrical interfaces, operating responsibilities and lifecycle maintenance. |
| Risk | Why it matters | What to check |
|---|---|---|
| Wattage-only selection | Equal power does not mean equal road coverage. | Matched optics and calculated maintained values. |
| Generic pole spacing | Dark zones or excessive pole quantities can result. | Actual road width, height, outreach, setback and arrangement. |
| Unmatched IES/LDT | The report may describe another luminaire. | Model, optic, BOM and photometric-file revision. |
| Glare or weak uniformity | A strong average may hide an unsuitable distribution. | Calculation grid, observer context, tilt and target criteria. |
| Pole / bracket mismatch | Lighting geometry affects structural and civil scope. | Wind basis, arm/PV loads, anchors, foundations and approved drawings. |
| Tender-file mismatch | The BOQ and calculation may specify different systems. | One consistent configuration across datasheet, drawing, report and BOQ. |
Road geometry + pole layout + selected luminaire + matched IES/LDT → photometric review.
Compare layouts, optics and spacing using maintained light levels, uniformity and glare-related criteria. The report should identify its calculation areas, maintenance-factor assumptions and file revisions so the consultant can follow the design basis.
Match the approved model, optic and pole geometry to the installed configuration, measurement conditions and handover records. Structural and foundation dimensions require project inputs and approved drawings. Simulation supports review; it does not guarantee consultant or authority approval.
Historical configurations are evidence for the named project—not universal design rules. Solar and AC records remain separate.
2018; 13,000 All-in-Two solar street-light sets; 60W LED; 8 m hot-dip galvanized steel poles; Accepted. Support included IES/DIALux and tender technical coordination.
2015–2020; 12,000 All-in-One solar street-light sets; 80W LED; 9 m poles; Completed. Support included IES, BOQ, DIALux and tender coordination.
2024; 210 AC LED street-light sets; 60W LED; 7 m poles; Completed. Support included IES, DIALux, pole drawings and wiring diagrams.
2016; 420 AC LED street-light sets; 60W LED; 7 m octagonal steel poles; Completed and Accepted. Support included complete-system technical documents and on-site installation guidance; installation remained the client/EPC scope.
Evidence boundary: Client names remain private. Each quantity, wattage, height, status and file scope belongs only to the named historical project.
Share constraints and receive a solution-ready response.
Typical constraints by region—coastal, hot, dusty, and heavy-rain environments.
No. Spacing also depends on road geometry, pole arrangement, optic, setback, arm or tilt, lighting target, uniformity, glare and civil constraints. Review the actual layout with the matched photometric file.
Provide the road cross-section, pole arrangement, height, spacing, arm and orientation where available, lighting target, maintenance-factor basis and proposed luminaire or optic. Missing inputs must be stated as assumptions.
No. It records a calculation for stated inputs and a specific photometric file. Approval also depends on governing requirements, approved configuration and as-built conditions.
Review grid availability and reliability, solar resource, runtime, autonomy, existing infrastructure, maintenance, voltage and electrical scope, environment and procurement requirements.
There is no universal optic. Type II and Type III are family paths; additional distributions require model and optic verification against geometry and targets.
An average value can conceal dark zones. Uniformity shows how consistently light is distributed across the defined calculation area.
Only if geometry, luminaire, optic, BOM, file revision, target and assumptions are proven applicable. Otherwise request a new matched review.
Output and distribution, height, tilt and orientation, pole position, road geometry and observer context all matter. More tilt or power is not automatically better.
The list may include BOQ review, matched datasheets, IES/LDT, DIALux/Relux output, structural or wiring drawings, deviations, compliance evidence, packing information and warranty terms. The exact list follows the tender and confirmed configuration.
Turn your road cross-section, pole layout and lighting criteria into a coordinated lighting proposal. Sunlurio supports EPC and consultant teams with optic selection, DIALux review and matched engineering documents.
Share your project location, road width, pole height, spacing, working hours, backup days, and required documents. Our team can help prepare configuration guidance, datasheets, IES/LDT files, DIALux support when applicable, drawings, and BOQ matching notes.
