Geometric visibility definition

Geometric visibility. Horizontal angle: For the two rear position lamps: either 45° inwards and 80° outwards, or 80° inwards and 45° outwards. The horizontal inward angle may be reduced to 30° if the shape of the bodywork makes it impossible to reach 45°. Vertical angle: 15° above and below the horizontal. The angle below the horizontal may be reduced to 10° if the height of the lamp above the ground is less than 1,900 mm, and to 5° if this height is less than 750 mm. 6.9.5.1. If it is impossible to observe the above position and visibility requirements, four rear position lamps may be fitted in accordance with the following installation specifications: 6.9.5.1.1. Two rear position lamps shall keep within the maximum height of 2,500 mm above the ground. A distance of at least 300 mm between the interior edges of the rear position lamps shall be observed, and they shall have a vertical angle of visibility above the horizontal of 15°. 6.9.5.1.2. The other two shall keep within a maximum height of 4,000 mm above the ground and shall be bound by the requirements of paragraph 6.9.4.1. 6.9.5.1.3. The combination of the two pairs shall meet the requirements for geometric visibility as specified in 6.9.5. above.
View Source
Geometric visibility means the angles which determine the square field in which the light- emitting surface of the lighting device is completely visible when the relevant angles (α vertical and β horizontal) are measured at the outward contour of the apparent surface and the lamp is observed from afar, however, if any obstacles is located within this field and partly obscuring the light-emitting surface, it may be accepted where it is proven that, even with such obstructions, the photometric values prescribed for the type-approval of the lighting device as component are complied with;
View Source
Geometric visibility. Horizontal angle: For the two rear position (side) lamps: either 45° inwards and 80° outwards, or 80° inwards and 45° outwards.
View Source

Examples of Geometric visibility in a sentence

  • Two, complying with either the requirements of the 03 and subsequent series of amendments to UN Regulation No. 19 or the requirements of UN Regulation No. [RID]." Paragraph 6.3.5., amend to read: "6.3.5. Geometric visibility Defined by angles α and ß as specified in paragraph ▇.▇▇.▇.: α = 5° upwards and downwards, ß = 45° outwards and 10° inwards.

  • For M1 category vehicles: no special requirement; For all other categories of vehicles: above the ground, not less than 350 mm nor more than 1,500 mm (2,100 mm if the shape of the bodywork makes it impossible to keep within 1,500 mm)." "6.14.5. Geometric visibility Horizontal angle: 30° inwards and outwards.

  • A6.10.5. Geometric visibility A6.10.5.1. Horizontal angle: 45° inwards and 80° outwards.


More Definitions of Geometric visibility

Geometric visibility. Horizontal angle: For the two front position (side) lamps: 10° inwards and 80° outwards. However, the angle of 10° inwards may be reduced to 5° if the shape of the bodywork makes it impossible to keep to 10°. For tractors with any overall width not exceeding 1,400 mm this angle may be reduced to 3° if the shape of the bodywork makes it impossible to keep to 10°.
View Source

Related to Geometric visibility

  • Compatibility means a condition in which land uses or conditions can coexist in relative proximity to each other in a stable fashion over time such that no use or condition is unduly negatively impacted directly or indirectly by another use or condition.

  • Spectrum Compatibility means the capability of two (2) copper loop transmission system technologies to coexist in the same cable without service degradation and to operate satisfactorily in the presence of cross talk noise from each other. Spectrum compatibility is defined on a per twisted pair basis for specific well-defined transmission systems. For the purposes of issues regarding Spectrum Compatibility, service degradation means the failure to meet the Bit Error Ratio (BER) and Signal-to-Noise Ratio (SNR) margin requirements defined for the specific transmission system for all Loop lengths, model Loops, or loss values within the requirements for the specific transmission system.

  • Signal means any transmission of radio frequency energy or of optical information.

  • Scaling as used herein, involves:

  • Connectivity means the provision of a Permanent Separated Bicycle Lane system that reflects desired routes between all major origins and destinations in the city.