The development of road infrastructure and the
increasing density on the highway, especially in big cities like
the capital city of Jakarta, require adequate road equipment to
provide security and comfort for public road riders, especially
at night. One of the instruments supporting highway equipment
as a support for road user safety is the Public Street Lighting
(LPJU) lights. Currently the Kemayoran ExAirport area which
is managed by the Kemayoran Complex Management Center
still has a road width of 25 meters and uses high-powered street
lighting instruments but the illumination level is not optimal
with an average value of 11 lux for fast lanes with the SON-T
lamp type 400 watts. The purpose of this study is to optimize
the function of public street lighting in the Kemayoran Region
by planning revitalization / rejuvenation of street lighting (PJU)
using low power lighting with high lumens with Light Emitting
Diode (LED) Lighting technology. The method used in this
research is quantitative observations and calculations using
international standards and SNI with lighting simulations using
DIALux Evo software. The results of this study note that:
Public street lighting system Jl. The most suitable Benyamien
Sueb is to add a new PJU pole placement pattern in the middle
median with 235 Watt lamp power in the fast lane and the
existing pole with 140 Watt lamp power in the slow lane. This is
evidenced by the results of the Dialux Evo simulation which
shows the average value of lighting using LEDs reaching 48.7
lux (Fast Track) and 36.4 lux (Slow Track). This value has
fulfilled the SNI 7391: 2008 standard for public street lighting
with the classification of arterial-free roads.
2. 2
Fig, 1. Types of general street lighting
The table below is a comparison of the use of public
street lighting using LED type luminaires, High Pressure
Sodium Vapor (HPSV), and High Pressure Mercury Vapor
in table 2.
TABEL 2
Comparison of Street Lights lamp
1.3 Main Principles Of Street Lighting Design
Designing public street lighting, there are main
criteria that must be considered:
TABEL 3
Street Light Design Parameter
Aspect
Lighting quality
parameter
Abbreviation
Lighting level Average road-surface
luminance
Lav
Uniformity Overall uniformity
Longitudinal uniformity
Uo
U1
Surround lighting Surround ratio SR or EIR
Glare restriction Threshold increment TI
1.4 Luminous Flux
The amount of light energy produced per unit time is
called the luminous flux[10]. The unit of luminous flux is
lumen.
Ø = (2.1)
Where : Ø = Luminous flux in lumen (lm)
Q = Light energy in lumen hours or lumen seconds
t = time in hours or seconds
Based on IESNA RP -8 – 00 (American Standard), Top
Standard of Road Lighting Design. Then the light flux value:
Lumen Per Pole =
Ø (Lumen/pole ) =
Where : E : Illuminance ( Lux ir Lumen/meter)
Ø : luminous flux in lumen (lm)
W : The width of the road ( Meter )
D : Distance between poles ( Meter)
CU : Utilization Factor, sebesar 0.9 .
MF : Maintanance Factor, sebesar0.29 .
1.5 Luminous Intensity
Luminous intensity is the light current emitted by a
light source in one cone ("cone") of light and is expressed in
Candela units [10].Light Intensity can be formulated by: :
ί = or Ø = ί x
Where : K =
Ø = K x P
So : i =
Where : ί = Luminous Intensity (cd)
Ø = Luminous Flux (lm)
K = Average light efficiency (lm/W)
1.6 Illuminance
Illuminance or lighting intensity is the flux of light
falling on a surf ace plane. The unit of illumination is lux (lx)
with the symbol E. Therefore, 1 lux = 1 lumen per m2
.
E = lux
Where : E = Illuminance (lux or Lumen/meter)
A= Surface area (m2
)
To calculate the intensity of lighting in an artificial
lighting system, several diagrams and graphs of light sources
are used, especially armatures and lamps. Each type of lamp
has different characteristics that are adapted to the
application of the lamp.
Fig. 2. Light distribution curve
171
3. 3
1.7 Luminance
The brightness of an object being illuminated is defined
as luminance. The level of luminance of an object will affect
vision, the luminance of an object that is too large will blind
the sight as well as a lamp without an armature. The
luminance (L) of a light source is the intensity of the light
divided by the apparent surface area. In formula form:
L = Cd/ cm2
(2.7)
or
L = Cd/ cm2
(2.8)
Where : L = Luminance (cd / cm2)
I = Luminous Intensity (Candela)
As = Apparent Surface Area (cm2
)
If the luminance level is very small, the unit cd/m2 can be
used with a conversion value of 1 cd/cm2 = 1000 cd/m2 [8].
1.8 Light Efficiency
Light efficiency is the ratio of calculated lumen
output to calculated power consumption expressed in lumens
per watt. formulated with:
K =
Where : K= Light efficacy in lumens per watt (lm/W)
P= Electrical power in watt ( W )
1.9 Number of Light Pole Points
The number of light points to be installed greatly
affects the intensity of illumination / luminance on the road
area to be irradiated, if the number of light points is less then
the light tends to be dim and does not reach the Lux standard
value of the road area. Then the light point can be
determined by:
T = +1 (2.10)
Dimana : T = Number of Light Points
L = Road Length ( meter )
S = Pole Distance (meter)
2. Research methods
In the process of designing Street Light Design, it refers
to two international standards, namely the International
Commission on Illumination CIE 140[4] in 2019 and the top
standard of road lighting RP -8-00 published by IES America.
Figure 3 shows In general, the planning flow of the LED
lamp specifications. The first step is to collect geographical
information and road profiles, including: light loss factor,
road length, road width, road classification, median width,
number of lanes. Then determine the standard to be used. In
planning public street lighting, especially the Dialux Evo
application, there is an option to determine the standard of
lighting class based on the rules of the International
Commission on Illumination (CIE) or IES RP-8-00.
START
Street Specification, Eksisted / Non
Eksisted Pole, and support area
IES - RP-8-00
Standard?
CIE - 140
Information Gathering
Illuminance [E] Luminance (L) VL
Calculation
Design Criteria
Lamp type Selection
(HPS-LED-CFL)
Pole Height (m)
Spacing
Calculation
(Lumen, Power, Cd)
Result
Analysis
Detailed Drawings
Dialuix
Simulation
END
Fig. 3. Block diagram of street lighting design steps
3. Results and Discussion
3.1 Road Specifications
The road profile used in this study is presented in
Table below :
TABEL 3
Benyamien Sueb Street Profil
To determine the specifications of the street lamps that
will be used in each pole, the calculation of lamp luminance
is only focused on the work area as shown below. The
following is the area for calculating the need for each lamp's
illumination:
Fig. 3. Light distribution area
Road Type Arteri Primer
Road Length 5296 Meter
Fast Lane Width 15 Meter
Slow Lane Width 7 Meter
Median Width 3.4 Meter
Lanes 6 Jalur
Pole Height 13 Meter
Distance Between Poles 30 Meter
Way Directions 2 Arah
Fast Lane
Slow Lane
172
4. 4
3.2 Lighting Calculation
Based on IESNA RP -8 – 00 (American Standard),
Top Standard of Road Lighting Design. Then the total Flux
value needed for the Fast Lane and Slow Lane Benyamien
Sueb street is:
a. Minimum Luminance
- Fast Track
Ø (Lumen/pole ) =
=
= 34482,75 Lumen
-Slow Track
Ø (Lumen/pole ) =
= 18390,80 Lumen
Based on the calculation results, the amount of
luminance required for each light pole in the Fast Track is
34482.75 Lumen and the Slow Line is 18390,80 Lumen.
b. Lamp Power
If it is known that the fast lane luminous flux is
34482.75 Lumen and the slow lane is 18390,80 Lumen. The
average lamp efficacy value for Philips products is 147
lumens / Watt, then:
Where : K = Philips LED Lamp efficacy average 147 lm/W
Notes : The efficacy value of each lighting product is
different
c. Lamp Specification
Based on the calculation of the lamp power above, the
value of the light flux and the minimum required lamp power
is obtained. Here are the steps in determining the appropriate
lamp specifications :
1. First, after knowing the minimum power required, in this
case 235 Watt, then determine the minimum Luminous
Flux required for each lamp post, which is 34482.75
Lumen. Based on the catalog image there is a suitable
option, namely at a value of 38000 lumens.
2. Second, after determining the Luminous Flux value, then
determining the color of the light output. In the Philips
brand there are three color variants that match the Color
Temperature of the lamp:
a. 757 : Warm White , 2000K – 3000K
b. 830 : Warm White, 3000K – 5000K
c. 740 : Neutral White, 4000K – 5000K
3. Third, at this stage is to determine the pattern of
distribution of the desired lamp, in general, street lamp
products, both Philips and Panasonic, have similarities
regarding the pattern of lighting distribution. However,
the Philips Brand has 2 types of light distribution, namely
DM10 and DM11. Due to the profile of Jalan Benjamin
Sueb, the Fast Track is quite wide, to maximize the
spread of light, Medium Distribution 11 (DM11) was
chosen.
Fig. 4. Luminare selection application by Philips
UniStreet light gen2 and LumiStreet gen2 have the
same specifications, so one of the types that can be applied to
the fast lane is the UniStreet gen2 BGP 284 with the
following specifications :
Fig. 5. Selected luminare for Fast Lane
With the same steps the types of lights for slow lanes
that can be applied are:
Fig. 6. Selected luminare for Slow Lane
- Fast Track
P ( Watt ) =
P ( Watt =
= 234 Watt
- Slow Track
P ( Watt ) =
P ( Watt =
= 125,10 Watt
Watt
173
5. 5
d. Determining Luminous Intensity ( I )
Where : ί = Luminous Intensity candela (cd)
Ø = Luminous flux in lumen (lm)
= Steradian ( 4π )
e. Average Illuminance
Based on the lamp specifications in Table 4.5, the
average illumination value produced by the two lamps is:
- Fast Track
Eav = lux
Eav = lux
Eav = lux
Eav = 19.72 lux
- Slow Track
Eav = lux
Eav = lux
Eav = lux
Eav = lux
Eav = 22,7 lux
4. Simulation Results
The following is a 3D simulation result of Benjamin
Sueb street using Dialux Evo 3D rendering. Figure.7 shows
the results of a three-dimensional (3D) design using the
Dialux Evo application :
(a) (b)
Fig. 7. Simulation in Dialux Evo, (a) Pre-Rendering and (b) post
rendering with light distribution effect
4.1 Lamp Specification Testing And Analysis
After obtaining the specifications of the lamps used on
Benyamien Sueb street in the fast lane, then a simulation is
carried out to test the level of lighting that falls on the road
plane. The analysis process is carried out in one of the blocks
along Benyamien Sueb street which represents the whole.
a. Fast LaneLighting Analysis : Categories: M2
• Results for Valuation Field
Where : Lav :Luminance Average ( Cd/m2
)
Uo :Uniformity
Ul : Longitudinal Uniformity
TI : Glare limit ( %)
• Fast Lane Iso- llumination Curve results
b. Slow Lane Lighting Analysis : Categories: M2
• Results for Valuation Field
• Slow Lane Iso-llumination Curve results
4.2 Optimization of Lighting on Jalan Benjamin Sueb
To optimize the spread of light, adjustment of the
degree of light is carried out to get the maximum irradiation
pattern and light spread in the range of 0 – 28 degrees . It is
done to find the value of the degree of the lamp that produces
the maximum Illumination Intensity (Lux) and Luminance
(Cd/m2). Based on Figure 8, the luminance value is 2.80
Cd/m2, where the result is 30% larger than the calculation
result with an angle of 28 degrees . Based on these results,
the value of the degree of light that will be used in planning
Benyamien Sueb street is 10 degrees .
- Fast Track
I =
I =
I = 2707,07 Cd
- Slow Track
I =
I =
I = 1388,9 Cd
174
6. 6
• Iso-Iluminasi Curve Fast Lane and Slow Lane after
Optimization
Fig. 8. The final result of designing fast lane public street lighting with
Dialux Evo
Fig. 9. The final result of designing slow lane public street lighting with
Dialux Evo
• The final results of Valuation Field Fast Lane and
Slow Lane
V. CONCLUSION
a. The results of testing the specifications of the street
lighting system device (lamps and lampposts) using
Dialux Evo show a relatively larger value because the
light flux of the type of lamp selected is greater so that it
gives a much greater value of lighting intensity (lux)
compared to the calculation results.
b. Based on the analysis results from the Dialux Evo
application, all lamp specifications have met the
minimum street lighting standards of SNI 7391:2008
concerning Specifications for Street Lighting in Urban
Areas.
c. The results of the comparison of the results of the Dialux
Evo analysis and measurements in the field after the
installation of lights on Jalan Industri Raya, the results
show similarities with values between 46 to 48 Lux. This
proves that testing the LED lamp specifications using the
Dialux Evo application produces the same lighting
strength value as the condition of the area after installing
the lamp.
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