Roadway Lighting Report
Roadway Lighting Report
Roadway Lighting Report
Reporters:
Julios Charl Tagupa
Jeferson Muzo
CLASSIFICATION DEFINITIONS
Roadway: Pedestrian Walkway and Bikeway
Classifications
Freeway. A divided major roadway with full control of access and with no
crossings at grade. This definition applies to
toll as well as nontoll roads as follows:
Freeway A. Roadways with visual complexity and high traffic volumes.
Usually this type of freeway is found in major
metropolitan areas in or near the central core and operates through much
of the early evening hours of darkness at or near
design capacity.
Freeway B. All other divided roadways with full control of access where
lighting is needed.
2
Expressway. A divided major roadway for through traffic with partial
control of access and generally with interchanges at major crossroads.
Expressways for noncommercial traffic within park areas are generally
known as parkways.
Major. The part of the roadway system that serves as the principal
network for through traffic flow. The routes connect areas of principal
traffic generation and important rural highways entering the city.
3
Local. Roadways used primarily for direct access to residential,
commercial, industrial, or other abutting property.
Alley. Narrow public ways within a block, generally used for vehicular
access to the rear of abutting properties.
4
Bikeway.
Any road, street, path, or way that is specifically designated as
being open to bicycle travel, regardless of whether such facilities are
designed for the exclusive use of bicycles or are to be shared with
other transportation modes.
5
Area Classifications (Abutting Land Uses)
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Photometric Diagrams
20
Photometric Diagrams
Polar distribution curves
Source: Indalux
21
Photometric Diagrams
Isocandela diagrams
• Although the polar diagrams are a very useful and practical tool,
they present only information on what happens in the vertical planes
(C), not showing what is happening on other points;
22
Photometric Diagrams
Isocandela diagrams
Source: Indalux
23
Photometric Diagrams
Isolux or isoilluminance diagrams
• The various isolux curves form the isolux diagram, where “h” is the
height of the luminaire;
• Values for each isolux line are given in Emax percentages, the
highest being 100%.
24
Photometric Diagrams
Isolux or isoilluminance diagrams
25
Utilization factor
where:
• η = utilization factor
• Φ = lamp luminous flux
• n = number of lamps per luminaire
• w = width of the road
• s = interdistance between
luminaires
Source: Indalux
26
Lighting classes
Establishment of photometric requirements
27
Lighting classes
Establishment of photometric requirements
- When the complexity of the layout and the diversity of surfaces are
low, which normally occurs outside urban areas, the criterion to be
used is the luminance. Thus, the areas to be illuminated must have
at least the same level of illumination of the roads that give them
access. The ideal is that the lighting class has an index below the
lighting class of the adjacent road;
- In areas where the complexity of the layout and the diversity of
surfaces do not allow a reliable calculation of luminance, the
criterion of illuminance shall be used.
28
Lighting classes
Lighting level requirements
29
Lighting classes
30
Lighting classes
EN 13201
31
Lighting classes
EN 13201
32
Lighting classes
33
Lighting classes
Existing lighting classes according to EN 13201
High
M Applies to motor vehicles on high and medium speed roads
Zone of conflict: when the tracks of the vehicles intercept and end in
Velocity
P ES EV
35
Lighting classes
Subclass
- Traffic usage criteria include:
- Traffic density of motorized vehicles (number of vehicles per day)
- Traffic density of cyclists (normal/high)
- Traffic density of pedestrians (normal/high)
- Difficulty of navigating traffic (normal/higher than normal – defined
as the difficulty in picking speed or position on the road based the
visual information available)
- Parking vehicles (permitted/not permitted)
- Visual recognition (necessary/not necessary)
- Risk of crime (normal/higher than normal – based on a
comparison between the likelihood of crime at the location with the
likelihood of crime in the wider region).
36
Lighting classes
Subclass
- Environmental conditions include:
- Complexity of visual stimuli within the field of vision
(normal/high)
- Luminance of the environment (rural environment/urban
environment/city centre)
- Prevalent weather (dry/wet – no longer applicable for the newer
lighting class designations)
37
Lighting classes
How to determine the subclass number
Ambient Luminance:
High: Urban areas with high levels of roadway and decorative lighting. May
contain brightly lighted commercial advertising signs, building facades and/or
shop windows.
Moderate: intermediate areas with some roadway lighting, lighted road signs
and/or commercial advertising signs.
Low: Rural areas, without or with limited roadway and/or intersection lighting.
38
Lighting classes
How to determine the subclass number
Intersection density:
High | crossings (intersection of two or more roads)
Moderate | three-way intersetions
Traffic Control:
Weak | without stop light
Good | with stop light
39
Lighting classes
Photometric requirements for high and medium speed
classes
Road surface
Lighting Dry Wet TI (%) SR
class
Laverage Uo Ul Uo
(cd/m2)
M1 2 0,4 0,7 0,15 10 0,5
40
Lighting classes
Photometric requirements for conflict zone classes
TI (%)
Eaverage High and
Lighting class Uo(E) Low and very low
(lux) moderate
velocities
velocities
C0 50 0,4 10 15
C1 30 0,4 10 15
C2 20 0,4 10 15
C3 15 0,4 15 20
C4 10 0,4 15 20
C5 7,5 0,4 15 25
41
Lighting classes
Photometric requirements for low-speed classes
(pedestrian areas)
42
Street lighting parameters
43
Street lighting parameters
44
Street lighting parameters
• Uniformity;
• Surrounding Ratio;
• Maintenance Factor;
45
Street lighting parameters
Uniformity
𝐿𝑚𝑖𝑛
𝑈0 =
𝐿𝑚𝑒𝑑
46
Street lighting parameters
Uniformity
minimal
Illuminance
average
máximal
Longitudinal
direction
47
Street lighting parameters
Uniformity
• The mean uniformity (Um) may also be defined as the ratio of the
minimum illuminance value (Emin) to the mean illuminance value
(Emed) of a lighting installation:
𝐸𝑚𝑖𝑛
𝑈𝑚 =
𝐸𝑚𝑒𝑑
48
Street lighting parameters
Surrounding Ratio
49
Street lighting parameters
Uniformity
Width equal to 5 meters Width equal to half the width of the road.
51
Street lighting parameters
Maintenance Factor
52
Street lighting parameters
Maintenance Factor
53
Street lighting parameters
Maintenance Factor
• Lamp Lumen Maintenance Factor (LLMF) - Example
30 luminaires needed, average 315 Lux Only 25 luminaires needed, average 331 Lux
15m 15m
55
THANK YOU
56