Street Lighting Calculator – Road Lighting Design and Simulation
Street Lighting Calculator – Road Lighting Design and Simulation
Street Lighting Calculator
ZGSM provides an online street lighting calculator to help evaluate whether our street lighting solutions meet your road illumination requirements.
About luminaire arrangement
The definitions of the five core parameters for road lighting layout are as follows: The setback is the horizontal distance from the light pole to the edge of the roadway, typically ranging from 0.3 to 0.6 meters, balancing installation safety and lighting effectiveness. The arm length is the horizontal extension of the light pole toward the road; single arms are typically 1.5–2.5 meters long, while double arms are used for two-way lane lighting. The overhang refers to the horizontal distance from the center of the luminaire to the road edge, limited to one-quarter of the installation height to avoid obstruction and glare. The arm inclination angle is the angle between the light fixture’s emitting surface and the horizontal plane; it must be kept within 15°, with 0° currently being the most common setting to minimize glare and upward light spill. Pole spacing is the distance between adjacent poles along the road centerline; the standard is 3–4.5 times the installation height, balancing lighting uniformity with construction costs. For more details, please check our blog – luminaire arrangement.
About street lighting design – standards and steps
Road lighting design must adhere to European EN 13201 or RP-8-21 standards, utilizing metrics such as luminance, illuminance, pavement uniformity, and glare limits as acceptance criteria. The entire design process is executed with the aid of simulation software such as DIALux EVO, Relux, and AGi32. The initial step involves surveying road conditions—inputting parameters such as lane width, pavement material, and traffic volume—to determine the appropriate road lighting class. The second step entails selecting suitable LED street light products and importing their photometric distribution files to specify the required power output and optical lens models. Subsequently, a mounting configuration—such as single-sided or staggered arrangements—is selected, and parameters including pole height, overhang length, and installation spacing are defined; software simulations are then performed to verify the illuminance parameters. If the data fails to meet regulatory specifications, the lighting layout scheme is iteratively optimized until compliance is achieved, culminating in the generation of a final simulation report that ensures the realization of a safe, energy-efficient, and fully compliant street lighting design. Click here to learn more about road lighting design standards and steps.
Disclaimer
The results generated by this calculator are for reference only and should not be used as the sole basis for tendering, procurement, construction, project implementation, or other commercial decisions. Final project designs and specifications should be verified by qualified lighting professionals based on actual site conditions and applicable standards.
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Author introduction
Hello Customers,
My name is Taylor Gong, I’m the product manager of ZGSM Tech. I have been in the LED lights industry for more than 13 years. Good at lighting design, street light system configuration, and bidding technology support. Feel free to contact us. I’m happy to provide you with the best service and products.
Email: [email protected] | WhatsApp: +8615068758483