Difference between revisions of "Category:901 Lighting"

From Engineering_Policy_Guide
Jump to navigation Jump to search
 
Line 24: Line 24:
 
This article also includes a [[901.15 Glossary|glossary]], a discussion on the [[901.10 Preparation of Plans|preparation of plans]] and [[901.12 Electrical Components|electrical components]].
 
This article also includes a [[901.15 Glossary|glossary]], a discussion on the [[901.10 Preparation of Plans|preparation of plans]] and [[901.12 Electrical Components|electrical components]].
  
[[Category: 900 Traffic Control]]
+
[[Category: 900 Traffic]]

Revision as of 12:14, 8 November 2006

Key Points


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:

- lighting to be provided, operated and maintained at state expense,

- lighting to be provided, operated and maintained at the expense of the local political subdivision,

- lighting to be adjusted at state expense and operated and maintained at the expense of the local political subdivision,

- state participation in continuous freeway lighting by a local political subdivision,

- and lighting proposed by other political subdivisions on state highways.

When designing, installing, programming and maintaining lighting, factors such as light source and intensity and [[901.8 Circuiting|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.

This article also includes a glossary, a discussion on the preparation of plans and electrical components.