Outdoor Parking Lot Lighting Design Requirements

1. Introduction

With the development of economy, automobiles have become a common means of transportation for people.

The urban parking lot makes the cars in the city run normally and smoothly, and the parking lot is developing into an essential element of a city, its illuminance should also be paid attention to. Targeted lighting in the parking lot is not only a requirement to ensure use, but also a need to ensure property and personal safety.

This article will discuss the lighting design and usage specifications of outdoor parking lots, because outdoor parking lots need more attention than ordinary underground parking lots, so the requirements are relatively higher. Among them, illumination requirements, lighting selection, lighting arrangement And the lighting requirements of various parts of the parking lot are the first issues to be considered, so this article will mainly analyze from these perspectives.

2. Illumination standard

With reference to the current Chinese national standard “Lighting Design Standards for Outdoor Work Sites” GB 50582-2010, and the relevant standards of “Design Standards for Urban Road Lighting” CJJ 145-2015, there are relevant requirements for various types of outdoor parking lot illumination indicators. GB 50582-2010 stipulates: Class I (>400 vehicles) parking lots, the standard value of horizontal illuminance is 30Lx, and the uniformity of horizontal illuminance must reach 0.25 or more. CJJ 45-2015 stipulates: According to the traffic volume, the parking lot with high traffic volume should maintain the average horizontal illuminance Eh,av (Lx) at 20Lx, and the illuminance uniformity should reach 0.25 or more. For parking lot entrances and toll booths, “Lighting Design Standards for Outdoor Work Sites”

GB 50582-2010 stipulates that the illumination at the entrance and reception of the parking lot should not be lower than 50Lx. If the parking lot adopts the Class I illuminance standard of GB 50582-2010, the standard value of horizontal illuminance is 30Lx.

LED is a solid-state light source, which has the characteristics of small size, fast response, modular combination, adjustable power and DC power drive.

With the popularization and application of LED light source and the improvement of product cost performance, and the garage personnel will not stay for a long time, it is not necessary to consider the impact of LED light on human safety, especially vision, so it is recommended to use LED light source first.

3. Lighting quality requirements

For the lighting of the parking lot, in addition to the basic illuminance requirements, other such as the uniformity of the illuminance; the color rendering and color temperature requirements of the light source; glare is also an important indicator to measure the lighting quality. High-quality field lighting can create a relaxed and friendly visual environment for drivers and pedestrians.

4. Lighting arrangement

1. The conventional street light lighting method is adopted, and the single-head or top LED street light is installed on the street light pole. The height of the street light pole is 6 meters-8 meters, the installation distance is about 20 meters-25 meters, and the power of the upper-mounted LED street lights: 60W-120W.
2. Using the high-pole lighting method, the high-pole lighting method reduces the redundant wiring and the number of lights installed. The advantage of the high-pole lightis that the lighting range is wide and the maintenance is simple. The installation height of the high-pole lightshould generally be 20 meters to 25 meters. .The number of LED floodlights installed on the body should generally be 10-15 sets. The power of LED floodlights should generally be 200W-300W.

5. Lighting needs

1. Entrance and exit: The entrance and exit of the parking lot need to check the verification documents, charge fees, and identify the driver’s face to facilitate communication between the staff and the driver; the railings, the facilities on both sides of the entrance and exit and the ground must provide corresponding lighting to ensure the safety of the driver. Driving, therefore, the lighting should be properly enhanced here, and targeted lighting should be provided for these operations. GB 50582-2010 stipulates that the illumination at the entrance of the parking lot and the toll booth should not be less than 50Lx.
2. Signs and markings: The signs in the yard need to be illuminated to be seen, so the lighting of the signs should be taken into account when designing the lighting. Then there are the markings on the ground. When setting the lighting, it should be ensured that all markings can be clearly displayed.
3. Body parking space: For the illumination requirements of the parking space, it is necessary to ensure that the ground markings, ground car locks, and high barrier rails can be clearly displayed to ensure that the driver will not hit the ground due to insufficient illumination when entering the parking space. obstacle. After the vehicle is parked, the body should be displayed with appropriate lighting to facilitate the identification of other drivers and the entry and exit of the vehicle.
4. Pedestrian route: Pedestrians pick up the car or get off the car and leave, there will be a section of pedestrian road, this section of road should consider its lighting according to the ordinary pedestrian road, and provide suitable ground lighting and vertical lighting. If there is a mixed use of pedestrian routes and roadways in the parking lot, it will be considered according to the roadway standards.
5. Environmental interference: For the sake of safety and the need to identify the direction, the environment of the parking lot should also require a certain amount of lighting. However, the impact on the ambient atmosphere outside the parking lot should be reduced. After all, vehicles or parking lots are not beautiful decorations in the public environment, and they may even destroy the original harmony of the environment. In response to this problem, the arrangement of lights can be improved, for example, by setting up continuous light poles around the parking lot to form an array, which can act as a line of sight barrier, so that the inside and outside of the parking lot can be isolated.

6. Conclusion

After the above analysis, I believe that readers have a certain understanding of the lighting design of the outdoor parking lot. If there is a need to design the lighting of the parking lot, there should also be some considerations.

For example, we need to set up three rows of lights for a parking lot of 150*31 meters, a total of 35 street lights, the height of the poles is about 3.5 to 4 meters, and the distance between the poles is 15 meters, so what kind of lights is more suitable? How can it be achieved not only to ensure power saving, but also to achieve a certain degree of illumination?

At this time, we can consider choosing a ceramic metal halide light with a street light head with a wide light distribution, otherwise the light cannot be turned on, and the use of LED lights may cause high illumination below the light, but there is a dark area between the two lights, and there is a blind spot on the edge. phenomenon, which seriously affects the application of driving safety and monitoring equipment. The ceramic metal halide light is used as the light source, which has the obvious advantages of high light efficiency, high color rendering, long life and low light decay.

But in fact, we can also choose LED street lights, because its main advantage is energy saving. The recommended power is 200-300W, and the angle of the light needs to be adjusted to 120°.

It can be seen that specific things need to be analyzed in detail, and ultimately we should tailor the lighting design scheme according to our own needs, which is also the meaning of the work of lighting engineers like us.

LedsMaster provides professional free lighting design solutions. In addition to parking lots, we can also design lighting and application solutions for various scenarios such as airports, shopping malls, and highways, providing one-stop service for your needs!