Street lighting pre-design
Pick the street, its cross-section and the traffic. The tool gives an indicative lighting class with its required values, pole height and spacing, the luminous flux one luminaire needs, and the LuxLuminaire models in that range. Every choice is a list: nothing to type.
Indicative result
- Lighting class
- EN 13201 M5
- Required values
- Average L 0.5 cd/m²
- Mounting height
- 9 m
- Spacing between luminaires
- 36 m
- Flux per luminaire
- 3,200–3,500 lm
- Power per luminaire
- 25–32 W
Flux for an average of 7.5 lx (C5 level on the M5 row of the JRC chart of EN 13201-2) over a 7 m lit width. Spacing limit (ShNK): 5 × height. Colour temperature: 5000 K.
Send this layout for a quoteCross-section
Plan view
Matching models
Standard LuxLuminaire variants whose luminous flux is inside the range above. The photometric calculation then picks the optic and the exact power.
- All-in-One Solar Street Light 20W · 3300 lm 20 W, 3,300 lm
- Bella Road & Street Luminaire 1M BE1M.ST.00.030, 30 W, 3,300 lm
No standard variant falls in this range. Send the layout and we propose a configuration.
Indicative pre-design for product selection. This is not a lighting design or a proof of compliance. A photometric calculation with the real luminaire data, done or checked by a qualified designer, is required before a tender or construction.
How the tool works
- Lighting class. EN 13201: the class number is 6 minus the sum of weights for speed, traffic, mix, separation, junctions, parked vehicles, ambient light and driving task (M classes for roads), or speed, use, mix, parked vehicles and ambient light (P classes for paths and shared streets), the selection method of CEN/TR 13201-1:2014. The class levels are those of EN 13201-2 as charted in the EU Joint Research Centre report on road lighting for green public procurement (JRC115406, Figure 1). ShNK: luminance and illuminance by road category and traffic from ShNK 2.01.05-24 Table 15, and 4 lx (category A, B) or 2 lx (V) for paths from Table 16 (lex.uz).
- Pole height and spacing. You choose the mounting height and the spacing. ShNK 2.04.18-22 (lex.uz) sets luminaires over a carriageway at least 7 m high and crown-type luminaires on pedestrian paths at least 3 m high (paragraph 41), and spacing at most 5 times the height, 7 times for staggered poles (paragraph 43). Conventional roadway lighting uses mounting heights of 9 to 15 m (US FHWA).
- Flux and power. Flux = average illuminance × lit width × spacing ÷ (utilance × maintenance factor 0.85), the relation behind the power density indicator in the JRC report. Utilance by lit width from the JRC report Table 11 (8 m or more 0.7–0.75, 7–8 m 0.63–0.7, 6–7 m 0.56–0.6, 5–6 m 0.49–0.55, 5 m or less 0.42–0.5): the comprehensive value gives the low end of the range, the core value the high end. Maintenance factor 0.85 as suggested in the JRC report. For M classes the average illuminance is the level on the same row of the JRC chart (M1 30 lx (C1), M2 20 lx (C2), M3 15 lx (C3), M4 10 lx (C4), M5 7.5 lx (C5), M6 5 lx (P4)); this pairing is our reading of the chart. Power = flux ÷ 110–130 lm/W, the efficacy of our road luminaires.
Not covered: uniformity, glare and surround ratio checks, exact speed bands for high and very high speed and traffic volume thresholds (choose what your project brief says), and the sidewalk requirement next to a road (ShNK clause 89: at least half the carriageway luminance).
Class values used
| M class | Average L (cd/m²) | E used for flux (lx) |
|---|---|---|
| M1 | 2.00 | 30 |
| M2 | 1.50 | 20 |
| M3 | 1.00 | 15 |
| M4 | 0.75 | 10 |
| M5 | 0.50 | 7.5 |
| M6 | 0.30 | 5 |
| P class | Average E (lx) | Minimum E (lx) |
|---|---|---|
| P1 | 15 | 3 |
| P2 | 10 | 2 |
| P3 | 7.5 | 1.5 |
| P4 | 5 | 1 |
| P5 | 3 | 0.6 |
| P6 | 2 | 0.4 |
Sources (all free to read, from public bodies): EU JRC, road lighting GPP technical report (JRC115406) · ShNK 2.01.05-24 · ShNK 2.04.18-22 · US FHWA Freeway Management and Operations Handbook. Cited by name: EN 13201-2 and CEN/TR 13201-1:2014.