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Street Lighting Norms: Categories A, B, C under DBN V.2.5-28:2018

DBN V.2.5-28:2018 “Natural and Artificial Lighting” divides streets and roads into categories by function and traffic intensity, and sets the required road surface luminance for each category.

Street Lighting Norms: Categories A, B, C under DBN V.2.5-28:2018

Street categories for lighting

Per Table 8.27 of DBN V.2.5-28:2018, streets, roads and squares with asphalt-concrete pavement are divided into three categories by significance and traffic intensity:

CategoryStreet/road typeSubclassTraffic intensity, vehicles/hour (both directions)Average pavement luminance, cd/m²
AArterial roads, city-wide arterial streetsA1over 50002.0
AA23000 to 50001.5
AA31000 to 30001.2
AA4500 to 10000.8
AA5under 5000.6
BDistrict-level arterial streetsB1over 20001.0
BB21000 to 20000.8
BB3500 to 10000.6
BB4under 5000.4
CLocal streets and roadsC1500 and over0.4
CC2under 5000.3

For category B and C streets and roads with a transitional or lower pavement type (not asphalt-concrete), the requirement is set as average horizontal illuminance instead of luminance: 6 lx for category B, 4 lx for category C with a transitional pavement, 2 lx for category C with a lower pavement type.

Additional requirements

  • intersections, at-grade pedestrian crossings, public transport stops and accident-prone sections must have an average pavement luminance of at least 1.6 cd/m², regardless of the street category;
  • the luminance of pavements adjoining the carriageway must be at least half the luminance of the carriageway pavement;
  • on arterials with traffic over 3000 vehicles/hour in both directions and simultaneous heavy pedestrian traffic, luminance requirements are increased by 10–20%.

How the street category affects pole selection

The luminance requirement determines the luminous flux and spacing of luminaires, and the practical spacing of lighting poles for a specific layout follows from that. The standard has no direct table of “pole spacing in metres by street category”: it is a calculated value that also depends on the pole height and the luminaire’s photometry. Practical guidance and standard height ranges are in the article How to Choose a Lighting Pole Height.

What the PUE add to the DBN: luminaire height and pole placement

DBN V.2.5-28 sets the pavement luminance; minimum luminaire heights and pole placement rules come from chapter 6.3 of the Rules for the Arrangement of Electrical Installations (PUE), 2026 edition. They apply to the design, not to a particular pole: pole height and bracket reach are chosen to meet them.

ItemPUE requirementClause
Luminaire height over the carriageway of streets, roads and squaresat least 6.5 mcl. 6.3.5
Luminaire height over the contact networktram: at least 8 m above the rail head; trolleybus: at least 9 m above the carriageway; street lighting wires at least 0.5 m vertically from the contact network span wires or lighting garlands hung from themcl. 6.3.5
Luminaire height over boulevards and pedestrian pathsat least 3 mcl. 6.3.6
Poles of 20 m and over for squares and traffic interchangescan be used if safe servicing is guaranteed, for example by lowering the luminairescl. 6.3.7
Lighting poles for squares, streets and roadsmust be placed to DBN V.2.3-5 (in built-up areas) and V.2.3-4 (public roads)cl. 6.3.8
Pole behind a roadside ditchpermitted if no more than 4 m from the nearest carriageway edge; no pole between a fire hydrant and the carriagewaycl. 6.3.10
Poles at street and road crossings and junctionsrecommended at least 1.5 m from the start of the footway kerb curve, keeping to the line of polescl. 6.3.11
Luminaires on streets with a row of treesmust be set beyond the tree crowns on extended brackets pointing at the carriageway, or hung on a cablecl. 6.3.13

“At least” is a minimum. The designer takes the final values for the site from the current text of the PUE and DBN.

From street to standard: the steps and examples

The requirement is worked out in a few steps. First comes the category and subclass of the street from Table 8.27, which depend on the role of the street and, in the 2018 edition, also on traffic intensity. Then the road surface type: luminance is specified for asphalt-concrete surfaces, illuminance for other surfaces. Intersections, at-grade pedestrian crossings and public transport stops are checked separately. For crossings, see Pedestrian Crossing Lighting.

Mind the edition. The category table above comes from the original 2018 text of DBN V.2.5-28:2018, and since 1 January 2026 Amendment No. 1 has applied (order of the Ministry for Development of Communities and Territories No. 1254 of 13 August 2025), which changes section 8.5. According to the published draft of the Amendment, this concerns Table 8.27, the requirements for at-grade pedestrian crossings and the threshold increment. So the examples below are limited to rules that are the same in both editions; take the values for your project from the up-to-date text of the standard.

Input dataWhat we determineRule and calculation
Asphalt-concrete carriageway for which the table gives 1.0 cd/m² (illustrative value)Luminance of the footway adjoining the carriagewayAt least half of the carriageway luminance: 1.0 × 0.5 = 0.5 cd/m²
Road surface other than asphalt-concrete, for example settsWhich quantity is specifiedNot luminance but the average horizontal illuminance, in lux
At-grade pedestrian crossing on a streetWhether it has requirements of its ownYes: the standard sets separate requirements for at-grade crossings; take them from the up-to-date text (see the article on crossings)

What DBN specifies besides luminance

Average luminance is not the only requirement: the other indicators limit the pole spacing, the mounting height and the choice of luminaire.

IndicatorRequirementWhat it affects
Minimum to average luminanceat least 0.4 for a requirement above 0.6 cd/m²; at least 0.3 for 0.6 cd/m² and belowPole spacing
Glare indicator Pno more than 150Choice of luminaire
Threshold increment TIno more than 10–15%, depending on the luminance requirement: the lower the requirement, the larger the permitted increment (Table 8.28)Mounting height
Vertical illuminance on windows of dwellings on category A and B streetsno more than 7 lx for a 0.4 cd/m² requirement; 10 lx for 0.6–1.0; 20 lx for 1.2–2.0; hospital ward windows no more than 5 lxDistance from poles to buildings

The values are from section 8.5 of the 2018 edition of DBN V.2.5-28:2018; Amendment No. 1 has applied since 1 January 2026, so check them against the up-to-date text before design. Only a lighting calculation gives the pole spacing that meets all the conditions; for guidance see Distance Between Street Lighting Poles.

DBN and DSTU EN 13201: which covers what

The street categories and the luminance values in the table above belong to DBN V.2.5-28. Alongside it there is the European system of road lighting classes, EN 13201: all five parts have been adopted in Ukraine as DSTU standards and have applied since 1 July 2024. Part 1 (DSTU CEN/TR 13201-1:2016) helps to select a class, Part 2 (DSTU EN 13201-2:2016) sets the requirements for the classes, and Parts 3–5 deal with calculation, measurement and energy performance.

The classes are designated by letters. M is the carriageway of roads with motor traffic, where luminance is specified. C is conflict areas, such as intersections and roundabouts. P is pedestrian and low-speed areas: footways, residential streets, car parks. For C and P it is illuminance that is specified. The tables of classes are not reproduced here: take the values from the text of the standard, not from a retelling.

To order poles it is enough to name the system the calculation was made under (a DBN category or a DSTU EN 13201 class) and its result: the pole height and spacing.

Checklist before ordering poles

  • the category, subclass and road surface type, the traffic intensity, the widths of the carriageway and footways, and the pole layout;
  • a list of intersections, at-grade pedestrian crossings and public transport stops, so that the designer can check the requirements for these places against the current text of the standard;
  • the distance to windows of dwellings and hospital wards, and the expected height of tree crowns: DBN advises avoiding screening of the light by vegetation;
  • the luminaire photometric data (for example, an IES or LDT file) and the construction region for the wind load, see Wind Regions of Ukraine;
  • the current edition: DBN V.2.5-28:2018 applies with Amendment No. 1 (from 1 January 2026); treat the 2018 figures in this article as a guide and take the values for the project from the up-to-date text of the standard.

For an approximate selection use the calculator; the data to include in a request are listed in How to Order Poles and Masts.

Updated:

Reviewed by: V.V. Padalka, Chief Project Engineer

Street lighting norms: frequently asked questions

What luminance is required for a city-wide arterial street?

It depends on traffic intensity: from 0.6 cd/m² (under 500 vehicles/hour, subclass A5) to 2.0 cd/m² (over 5000 vehicles/hour, subclass A1). The subclasses in between are in the table above.

How is luminance different from illuminance?

Luminance (cd/m²) is what a driver sees looking at the pavement; illuminance (lx) is the amount of light falling on a surface. For streets with an improved (asphalt-concrete) pavement, DBN sets luminance; for transitional and lower pavement types, illuminance.

Where do I get the pole spacing in metres for my project?

The DBN standard only sets the luminance/illuminance requirement, not the pole spacing. That is calculated for the specific luminaire and pole height. Send us the street category and carriageway width and we will help select a solution.

Can some luminaires be switched off at night to save energy?

Yes, with restrictions. The PUE (2026 edition), cl. 6.5.24, require that some luminaires can be switched off at night to dim city streets and squares; two adjacent luminaires must not be switched off. Separately, DBN V.2.5-28:2018 does not permit partial night switch-off with a single-row layout and one luminaire per pole. The same DBN also requires the line of luminaires to show the direction of the road clearly.

Must adjoining streets without lighting be lit too?

Yes, on streets and roads of categories A and B. The design should provide lighting for adjoining unlit streets over a length of 100 m, to the standards of those streets. With 8 m poles and a spacing of 3–4 heights (24–32 m) this is roughly 4–5 poles on one side (the pole at the junction is not counted): 100 ÷ 32 ≈ 3.1, so 4; 100 ÷ 24 ≈ 4.2, so 5.

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