Nighttime crash rates are higher than daytime rates partially due to reduced visibility. Fixed-source lighting such as a luminaire tends to reduce crashes in urban and suburban areas with concentrations of pedestrians and intersections.
Different policies apply to:
When designing, installing, programming and maintaining lighting, factors such as light source and intensity and circuiting must be addressed. Guidelines for high pressure sodium luminaire performance and computation of roadway illumination, future lighting and dusk-to-dawn lighting policy are discussed in this article.
There are many aspects to be considered when inspecting construction quality and this article provides construction inspection guidelines.
Articles in "901 Lighting"
The following 18 pages are in this category, out of 18 total.
- 901.1 Lighting to be Provided, Operated, and Maintained at State Expense
- 901.2 Lighting to be Provided, Operated, and Maintained at the Expense of the Local Political Subdivision
- 901.3 Lighting to be Adjusted at State Expense and Operated and Maintained at the Expense of the Local Political Subdivision
- 901.4 State Participation in Continuous Freeway Lighting by a Local Political Subdivision
- 901.5 Future Lighting
- 901.6 Programming
- 901.7 Light Source and Intensity
- 901.8 System Voltage
- 901.9 Layout
- 901.10 Preparation of Plans
- 901.11 Light Emitting Diode (LED) Luminaire Performance and Computation of Roadway Illumination
- 901.12 Electrical Components
- 901.13 Lighting Proposed by Other Political Subdivisions on State Highways
- 901.14 Dusk-to-Dawn Lighting Policy
- 901.15 Glossary
- 901.16 Construction Inspection Guidelines for Sec 901
- 901.17 Material Inspection for Sec 901
- 901.18 Laboratory Testing for Sec 901